Continuous demolding device

By designing a continuous demolding device, the lifting structure of the support block and the jaws is used to achieve continuous and stable demolding of the workpiece, which solves the problem of the complexity of multiple demolding operations, improves demolding efficiency and reliability, and reduces the risk of workpiece damage.

CN224074787UActive Publication Date: 2026-04-03DONGGUAN AI RUIBO PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The demolding process of existing multi-component combination molds is complicated and requires multiple operations, which can easily lead to workpiece damage and production delays.

Method used

Design a continuous demolding device that utilizes a support block, jaws, and a cylinder-driven lifting structure to achieve continuous and stable demolding of workpieces. The lifting and rotating motion of the jaws simplifies the operation process, and the design of the bracket and jaws enables stable clamping and lifting of the workpieces.

Benefits of technology

It improves demolding efficiency and reliability, reduces the risk of workpiece damage, lowers the frequency of manual adjustments and equipment maintenance costs, and is suitable for rapid positioning and continuous operation of complex workpieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to demolding equipment, in particular to a continuous demolding device. A continuous demolding device comprises a main support, a first supporting block used for supporting a workpiece is arranged on the main support, a first upper plate extending forwards is arranged at the top end of the main support, and a first clamping jaw capable of ascending and descending and used for being clamped to a protrusion at the upper end of the workpiece is installed on the first upper plate. According to the continuous demolding device, a workpiece is firstly placed on the first supporting block of the main support and is stably supported by the first supporting block; then, a first clamping jaw installed on the first upper plate moves downwards through the lifting action, the tail end of the first clamping jaw is accurately clamped into a protruding structure at the upper end of the workpiece, clamping and lifting of the workpiece are completed through lifting control over the first clamping jaw, demolding operation of the workpiece from a mold is achieved, and the whole process depends on rigid supporting of the main support and the first upper plate; and continuous and stable demolding action is ensured.
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Description

Technical Field

[0001] This utility model relates to demolding equipment, and more particularly to a continuous demolding device. Background Technology

[0002] In the current industrial manufacturing field, the forming of many complex workpieces requires the use of multi-component molds, such as outer molds, workpieces, and inner cores (see...). Figure 4 The combination of multiple components in a mold greatly improves the accuracy and efficiency of workpiece forming, but it also increases the complexity of mold design and operation.

[0003] For molds consisting of an outer workpiece, a middle mold, and an inner core, at least two demolding operations are required to demold the entire workpiece. First, the inner core needs to be extracted from the workpiece; second, the middle mold needs to be removed from the workpiece. This requirement for multiple demolding operations further increases the complexity and difficulty of the demolding process. Improper demolding sequence or operation may lead to damage, deformation, or even scrapping of the workpiece, causing unnecessary economic losses and production delays.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a continuous demolding device that would have greater industrial application value. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a continuous demolding device.

[0006] The present invention provides a continuous demolding device, including a main support, a support block for supporting the workpiece, and an upper plate extending forward from the top of the main support. The upper plate is equipped with a liftable claw for locking onto the upper protrusion of the workpiece.

[0007] In this continuous demolding device, the workpiece is first placed on the support block 1 of the main support, which provides stable support. Then, the chuck 1 installed on the upper plate 1 moves downward through a lifting action, and its end precisely engages with the protruding structure on the upper end of the workpiece. The lifting and lowering control of the chuck 1 completes the clamping and lifting of the workpiece, realizing the demolding operation of the workpiece from the mold. The whole process relies on the rigid support of the main support and the upper plate 1 to ensure that the demolding action is continuous and stable.

[0008] Furthermore, a side bracket is fixed to one side of the main bracket, and a support block two for supporting the workpiece is on the side bracket. The top of the side bracket has a forward-extending upper plate two, and a lifting claw two for locking onto the upper protrusion of the workpiece is installed on the upper plate two.

[0009] The workpiece is placed on the support block 2 of the side bracket for support; then, the jaw 2 installed on the upper plate 2 moves down through a lifting action, and its end engages with the upper protrusion of the workpiece. The workpiece is clamped and lifted by the lifting control of the jaw 2, realizing the demolding operation from the side bracket. The side bracket is fixedly connected to the main bracket. The extension structure of the upper plate 2 ensures the stability of the lifting trajectory of the jaw 2, thereby ensuring the continuity and reliability of the demolding action.

[0010] Furthermore, the main support has a through hole in the middle, and a pressure plate is movably installed in the through hole via a shaft. The tail end of the pressure plate is movably connected to the telescopic rod of the pressure plate cylinder via a shaft. The tail end of the pressure plate cylinder is movably installed in the through hole on the upper part of the main support via a shaft. The front end of the pressure plate is arc-shaped and is used to clamp onto the outer ring protrusion of the workpiece.

[0011] The telescopic rod of the pressure plate cylinder drives the pressure plate to rotate around the through hole shaft in the middle of the main support through the shaft movement, so that the arc-shaped structure at the front end of the pressure plate presses down to either close or release the outer ring protrusion of the workpiece; when the pressure plate cylinder retracts, it drives the tail end of the pressure plate to rise, and the arc-shaped part at the front end presses down simultaneously, thereby fixing or demolding the workpiece by clamping the outer ring protrusion of the workpiece; the shaft movement connection design of the pressure plate and the cylinder linkage control ensure that the pressing action is stable and the pressure on the workpiece can be precisely adjusted, improving demolding efficiency and reliability.

[0012] Furthermore, a slide rail is fixed on the upper plate, and a cylinder is installed on the vertical plate at the tail end of the slide rail. The tail end of the slider is fixedly connected to the telescopic rod of the cylinder, and the slider is assembled on the slide rail. A lifting cylinder is installed on the slider. The telescopic rod of the lifting cylinder passes through the through hole of the slider and the waist-shaped groove between the slide rail and the upper plate. A claw is installed at the end of the telescopic rod of the lifting cylinder.

[0013] The telescopic rod of cylinder one pushes slider one to slide horizontally along slide rail one, causing lifting cylinder one and chuck one to move synchronously to the top of the inner core; then, the telescopic rod of lifting cylinder one presses down vertically through the through hole of slider one and the waist-shaped groove of slide rail one and upper plate one, so that chuck one is precisely engaged in the upper protrusion of the inner core; after clamping, lifting cylinder one retracts and lifts chuck one, and cylinder one drives slider one to reset in the opposite direction. The cooperation between slide rail one and waist-shaped groove ensures the stability of the vertical movement trajectory of lifting cylinder one, realizing efficient and continuous demolding of the workpiece.

[0014] Furthermore, a slide rail is fixed on the upper plate 2, and a cylinder 2 is installed on the vertical plate at the tail end of the slide rail 2. The tail end of the slider 2 is fixedly connected to the telescopic rod of the cylinder 2, and the slider 2 is assembled on the slide rail 2. A lifting cylinder 2 is installed on the slider 2. The telescopic rod of the lifting cylinder 2 passes through the through hole of the slider 2 and the waist-shaped groove between the slide rail 2 and the upper plate 2. A claw 2 is installed at the end of the telescopic rod of the lifting cylinder 2.

[0015] The telescopic rod of cylinder two pushes slider two to slide horizontally along slide rail two, driving lifting cylinder two and chuck two to move to a preset position above the workpiece; then, the telescopic rod of lifting cylinder two passes through the through hole of slider two, slide rail two and waist-shaped groove of upper plate two and presses down vertically, driving chuck two to engage with the upper protrusion of the workpiece and clamp it; after clamping is completed, lifting cylinder two retracts and lifts the workpiece, and cylinder two reverses to drive slider two to reset, realizing the precise transfer of the workpiece. The cooperation between slide rail two and waist-shaped groove ensures the stability of the vertical movement trajectory of lifting cylinder two. The cylinder linkage control improves clamping efficiency and operational reliability.

[0016] Furthermore, the second claw includes a bidirectional cylinder fixed to the end of the telescopic rod of the second lifting cylinder. Push plates are fixed at both ends of the bidirectional cylinder, and an inwardly bent gripping plate is fixed at the lower end of the push plate.

[0017] When the second chuck is working, the bidirectional cylinder fixed to the end of the telescopic rod of the second lifting cylinder drives the push plates at both ends to move horizontally inward or outward simultaneously, causing the gripping plates bent inward at the lower end of the push plates to close or open; when the bidirectional cylinder retracts, the two push plates drive the gripping plates to clamp the two sides of the workpiece, and the bending structure increases the contact area to ensure a stable clamping; after clamping is completed, the second lifting cylinder drives the second chuck to lift or move horizontally as a whole, and the extension of the bidirectional cylinder releases the workpiece.

[0018] By employing the above-described scheme, the present invention has at least the following advantages: The present invention achieves uniform distribution and synchronous control of clamping force through a symmetrical linkage structure of a bidirectional cylinder-driven push plate and gripping plate, effectively preventing workpiece skewing or slippage; the inward bending design of the gripping plate increases the contact area with the workpiece, improving clamping stability while reducing the risk of damage to the workpiece surface; combined with the vertical movement of the second lifting cylinder and the horizontal guidance of the second slide rail, it can precisely adapt to the workpiece gripping requirements of different heights and positions, significantly improving operational flexibility and efficiency. This structure is compact, reliable in operation, and suitable for rapid positioning and continuous operation under complex working conditions, reducing the frequency of manual adjustments and equipment maintenance costs.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0023] Figure 3 This is the utility model Figure 2 A magnified view of a portion of the image;

[0024] Figure 4 This is a workpiece that needs to be demolded in this utility model. Its bottom is the outer mold, the middle is the formed workpiece, and the inner side is the inner core mold.

[0025] In the diagram: 1. Main support; 2. Support block one; 3. Upper plate one; 4. Claw one; 5. Side support; 6. Support block two; 7. Upper plate two; 8. Claw two; 9. Pressure plate; 10. Pressure plate cylinder; 11. Slide rail one; 12. Cylinder one; 13. Slider one; 14. Lifting cylinder one; 15. Slide rail two; 16. Cylinder two; 17. Slider two; 18. Lifting cylinder two; 19. Bidirectional cylinder; 20. Push plate; 21. Grab plate. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] See Figure 1 This continuous demolding device uses a liftable jaw 4 at the top of the main support 1 to vertically move down and clamp the upper protrusion of the workpiece. Then, the jaw 4 lifts the workpiece to complete the demolding. At the same time, the support block 2 on the main support 1 provides stable support for subsequent workpieces, enabling continuous operation. The coordinated design of the jaw 4 and the support block 2 simplifies the demolding process. The lifting jaw directly grabs and separates the workpiece without the need for a complex transmission mechanism, improving efficiency. The rigid connection between the upper plate 3 and the main support 1 ensures accurate jaw positioning and avoids workpiece displacement and damage. The device has a compact structure and smooth operation, making it suitable for rapid batch demolding scenarios and significantly reducing downtime and manual intervention costs.

[0028] The dual-station collaborative operation of the main support 1 and the side support 5 enables continuous demolding: the second jaw 8 on the side support 5 is driven vertically downward by the second upper plate 7, precisely engaging the upper protrusion of the workpiece and lifting it to complete demolding. At the same time, the second support block 6 stably supports the workpiece to be processed, ensuring seamless process connection. The main support 1 and the side support 5 can operate alternately or synchronously to form a continuous cycle. The dual-support structure expands the station capacity, and the independent control of the second jaw 8 and the second support block 6 improves the demolding cycle efficiency. The rigid connection between the second upper plate 7 and the side support 5 ensures the positioning accuracy of the jaw and avoids workpiece interference. The modular design adapts to the parallel processing of multiple specifications of workpieces, reduces equipment idle time, and significantly improves the stability and automation level of mass production.

[0029] The device drives the pressure plate 9 to swing around an axis via the pressure plate cylinder 10. When the pressure plate cylinder 10 extends or retracts, it drives the tail end of the pressure plate 9 to rotate around the through hole axis of the main support 1, causing the front arc-shaped structure to press down or release synchronously, accurately engaging the outer ring protrusion of the workpiece and applying a uniform radial clamping force. In conjunction with the support and demolding action of the main support 1, the arc end face of the pressure plate 9 has high compatibility with the workpiece protrusion, and the contact stress is dispersed to avoid local damage. The pressure plate cylinder 10 amplifies the driving force through the lever principle, achieving stable clamping under low air pressure load. The shaft movable connection structure between the pressure plate 9 and the main support 1 is compact, with fast action response and smooth switching between clamping and release, ensuring continuous and reliable demolding process, while reducing workpiece positioning and adjustment time and improving consistency in batch production.

[0030] The device drives the slider 13 to move horizontally along the slide rail 11 via cylinder 12, which in turn moves the lifting cylinder 14 and the chuck 4 to directly above the workpiece. Then, the lifting cylinder 14 drives the chuck 4 to move vertically downward to clamp the upper protrusion of the inner core and lift it for demolding. After demolding, the cylinder 12 retracts back to its original position. The linkage between the slide rail 11 and the cylinder 12 achieves precise lateral positioning of the chuck, adapting to different workstation requirements. The telescopic rod of the lifting cylinder 14 is vertically guided by the waist-shaped groove of the slide rail 11 and the upper plate 3, avoiding motion interference and ensuring stable stroke. The modular cylinder drive structure simplifies the operation process, and the combined horizontal and vertical motion of the chuck 4 improves demolding efficiency while reducing manual adjustments, making it suitable for high-precision continuous production scenarios.

[0031] See Figure 2After the inner core is demolded, the slot on the outside of the outer mold is manually inserted into the support block 26. Cylinder 216 drives slider 217 to move horizontally along slide rail 215, which in turn drives lifting cylinder 218 and jaw 28 to be laterally positioned above the workpiece. Then, lifting cylinder 218 drives jaw 28 to press down vertically to clamp the workpiece protrusion and lift it for demolding. After the action is completed, cylinder 216 retracts to reset the slider. The coordinated control of slide rail 215 and cylinder 216 achieves high-precision horizontal positioning of jaw 28, which is suitable for flexible switching between multiple workstations. The telescopic rod of lifting cylinder 218 is vertically guided by the waist-shaped groove of slider 217 and upper plate 27 to ensure stable lifting trajectory without deviation. The modular cylinder drive structure integrates horizontal and vertical compound motion, which significantly improves demolding cycle efficiency. At the same time, the independent movement path of jaw 28 avoids interference with the main workstation, enhances the parallel processing capability of the system, and is suitable for rapid continuous operation of complex workpieces.

[0032] See Figure 3 The second gripper 8 is driven by the bidirectional cylinder 19 to synchronously extend and retract the push plates 20 on both sides. When the bidirectional cylinder 19 is activated, the push plates 20 at both ends drive the inwardly bent gripping plates 21 to open and close symmetrically in the horizontal direction. The gripping plates 21 use the bending structure to fit against the side wall of the workpiece and apply a balanced clamping force to complete clamping or release. The bidirectional cylinder 19 is synchronously controlled by the two output ends to ensure that the gripping plates 21 move symmetrically and the clamping force is uniform, avoiding workpiece skewing. The inward bending design of the gripping plates 21 adapts to the contour of the workpiece, increases the contact area and disperses stress, and prevents scratches or deformation. The rigid connection structure between the push plates 20 and the bidirectional cylinder 19 is compact and responds quickly. Combined with the vertical movement of the second lifting cylinder 18, it forms a multi-directional cooperative operation, improving the clamping and positioning accuracy and efficiency, and is suitable for the rapid and stable gripping of irregularly shaped workpieces.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A continuous demolding device comprising a main support (1), characterized in that: The main support (1) has a support block (2) for supporting the workpiece, and the top end of the main support (1) has a forwardly extending upper plate (3) with a liftable clamping jaw (4) for clamping the protrusion on the upper end of the workpiece.

2. A continuous stripping apparatus as claimed in claim 1, wherein: The side support (5) is fixed to one side of the main support (1), and the side support (5) has a support block (6) for supporting the workpiece, and the top end of the side support (5) has a forwardly extending upper plate (7) with a liftable clamping jaw (8) for clamping the protrusion on the upper end of the workpiece.

3. A continuous stripping apparatus as claimed in claim 1, wherein: The main support (1) has a through hole in the middle, and the through hole is movably connected to the pressure plate (9) through a shaft, and the tail end of the pressure plate (9) is connected to the telescopic rod of the pressure plate cylinder (10) through a shaft, and the tail end of the pressure plate cylinder (10) is movably installed in the through hole on the upper part of the main support (1), and the front end of the pressure plate (9) is arc-shaped for clamping the protrusion on the outer ring of the workpiece.

4. A continuous stripping apparatus as claimed in claim 3, wherein: The upper plate (3) is fixed with a slide rail (11), and the vertical plate at the tail end of the slide rail (11) is provided with a cylinder (12), and the tail end of the sliding block (13) is fixedly connected with the telescopic rod of the cylinder (12), and the sliding block (13) is assembled on the slide rail (11), and the sliding block (13) is provided with a lifting cylinder (14), and the telescopic rod of the lifting cylinder (14) passes through the through hole of the sliding block (13) and the waist-shaped groove between the slide rail (11) and the upper plate (3), and the end of the telescopic rod of the lifting cylinder (14) is provided with the clamping jaw (4).

5. A continuous stripping apparatus as claimed in claim 2, wherein: The upper plate (7) is fixed with a slide rail (15), and the vertical plate at the tail end of the slide rail (15) is provided with a cylinder (16), and the tail end of the sliding block (17) is fixedly connected with the telescopic rod of the cylinder (16), and the sliding block (17) is assembled on the slide rail (15), and the sliding block (17) is provided with a lifting cylinder (18), and the telescopic rod of the lifting cylinder (18) passes through the through hole of the sliding block (17) and the waist-shaped groove between the slide rail (15) and the upper plate (7), and the end of the telescopic rod of the lifting cylinder (18) is provided with the clamping jaw (8).

6. A continuous stripping apparatus as claimed in claim 5, wherein: The clamping jaw (8) comprises a bidirectional cylinder (19) fixed to the tail end of the telescopic rod of the lifting cylinder (18), and the two ends of the bidirectional cylinder (19) are fixedly connected with a push plate (20), and the lower end of the push plate (20) is fixedly connected with an inwardly bent grab plate (21).