A resin craft casting auxiliary demolding device

Abstract

This invention relates to the field of demolding technology and discloses a resin craft casting auxiliary demolding device, including a base plate and a top plate placed above the base plate. In the silicone mold deformation stage, this invention utilizes the limiting effect of the top plate and the coordinated work of the drive assembly. The drive assembly moves the silicone mold upwards, while the top plate provides stable constraint on the top of the mold, allowing the mold to deform uniformly within a controllable range. Furthermore, in the separation stage, a progressive force adjustment design is adopted. Relying on the cooperation of the boss-shaped protrusion and the synchronous frame, initially, when the pressure plate is inserted, the synchronous frame is at the bottom with a larger protrusion size, resulting in a large lifting amplitude. This causes the pressure plate to effectively break the strong adhesion between the workpiece and the mold with greater force. As the insertion depth of the pressure plate increases, the synchronous plate slides towards the top with a smaller protrusion size, reducing the lifting amplitude of the synchronous frame and automatically reducing the squeezing force, precisely matching the force requirements of different demolding stages.

Description

Technical Field

[0001] This invention belongs to the field of demolding technology, specifically, it relates to a demolding device for resin craft casting assistance. Background Technology

[0002] In the production process of resin crafts, the demolding process after casting is crucial. Resin crafts are popular in the fields of gifts and decoration due to their unique shapes and exquisite appearance. However, the current demolding process has many problems that need to be solved.

[0003] In the initial stage of demolding and separation, the workpiece and the mold cavity form a strong bond due to the solidification and adsorption effect. Sufficient force is required to break the adsorption state and start the separation. However, most existing equipment adopts a rigid force output mode, which cannot dynamically adjust the force according to the separation process. If the initial force is insufficient, separation difficulties and workpiece jamming are likely to occur, which will hinder subsequent operations. As separation progresses, the contact area between the workpiece and the mold cavity gradually decreases, and the adsorption force between the two weakens simultaneously. If the equipment still maintains the initial large force at this time, the finished product will be deformed due to excessive force.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A resin craft casting aid demolding device includes a substrate and a top plate placed above the substrate.

[0007] A bracket is mounted on the substrate, a silicone mold is placed on the substrate, and the top of the cavity of the silicone mold corresponds to the top plate. A driving component for driving the silicone mold to move upward is mounted on the substrate, and the limiting effect with the top plate causes the silicone mold to deform, and a gap is generated between the workpiece and the side wall of the cavity.

[0008] The base plate is rotatably mounted with a support plate. The support plate has a threaded groove on its side wall. A guide block is engaged inside the threaded groove. A pressure plate is mounted on the guide block. The pressure plate is inserted into the gap between the workpiece and the side wall of the mold cavity. The rotation of the support plate is used to control the depth of the pressure plate inserted into the gap between the workpiece and the mold cavity.

[0009] A timing frame is installed at the bottom of the pressure plate. The end of the timing frame is slidably connected to a protrusion on the bottom of the support plate. The protrusion is used to guide the pressure plate to squeeze the workpiece, so that the workpiece and the mold cavity are separated. The protrusion is in the shape of a boss, and the size of the top of the protrusion is smaller than the size of the bottom. The size difference of the protrusion is used to reduce the squeezing force as the pressure plate is inserted deeper into the gap.

[0010] In a preferred embodiment of the present invention, four support legs are installed at the bottom of the base plate. The four support legs are in the shape of bosses. A pad is installed at the bottom of each support leg. An anti-slip groove is opened at the bottom of the pad. An mounting plate is installed at the bottom of the bracket. The mounting plate is connected to the base plate by bolts. A cantilever is installed at the top of the base plate. A top plate is installed at the end of the cantilever. A surrounding plate is installed on the base plate. The surrounding plate and the base plate form a storage cavity for collecting workpieces.

[0011] In a preferred embodiment of the present invention, the opening of the silicone mold cavity faces downward and the opening position corresponds vertically to the support plate. Positioning blocks are installed at both ends of the silicone mold, a positioning frame is installed on the bracket, the positioning blocks are set on the positioning frame, and a positioning plate is also vertically slidably arranged on the base plate, with the positioning plate located above the positioning frame. The output end of the drive component acts on the positioning blocks.

[0012] In a preferred embodiment of the present invention, the driving assembly includes a first electric push rod, an L-shaped frame is mounted on the bottom shell of the first electric push rod, one end of the L-shaped frame is connected to the side wall of the bracket, a reinforcing rib is installed at the bend of the L-shaped frame, and a push plate is mounted on the output end of the first electric push rod, the push plate being positioned below the positioning block.

[0013] In a preferred embodiment of the present invention, a plurality of connecting frames are installed on the side wall of the positioning plate, and a synchronizing rod is installed at the end of each connecting frame. A slider is installed at both ends of the synchronizing rod. A sliding groove is opened on the side wall of the bracket, and the slider is slidably disposed on the sliding groove. A reset rod is installed through the sliding groove and moves through the slider. A reset spring is sleeved on the reset rod. One end of the reset spring is engaged with the side wall of the slider, and the other end of the reset spring is engaged with the side wall of the sliding groove.

[0014] In a preferred embodiment of the present invention, a soft pad is installed on the top of the pallet, and the soft pad is used to prevent the workpiece from falling and causing damage after demolding. A plug shaft is installed at the rotation center of the pallet, and a drive shaft is movably inserted into the side wall of the plug shaft. A drive motor is installed on the base plate, and the output shaft of the drive motor and the drive shaft are connected to each other.

[0015] In a preferred embodiment of the present invention, a second electric push rod is mounted on the base plate, and a lifting plate is mounted on the output end of the second electric push rod. A protrusion is mounted on the lifting plate, and the top of the protrusion is slidably connected to the bottom of the support plate. A groove is formed on the protrusion, and a guide rail is mounted on the bottom of the support plate. The guide rail is arc-shaped and slidably connected to the groove. The second electric push rod is used to drive the support plate to move upward and insert the pressure plate into the gap between the workpiece and the side wall of the mold cavity.

[0016] In a preferred embodiment of the present invention, a through groove is provided on the side wall of the guide block, and a slide plate is slidably disposed inside the through groove. A guide rod is installed through the slide plate, and both ends of the guide rod are installed on the side wall of the through groove. A limit spring is sleeved on the guide rod, one end of the limit spring is engaged with the side wall of the through groove, and the other end of the limit spring is engaged with the slide plate. A vertical plate is installed on the top of the slide plate, and the vertical plate and the pressure plate are connected to each other. A synchronization plate is installed on the bottom of the slide plate, and the synchronization plate and the synchronization frame are connected to each other.

[0017] In a preferred embodiment of the present invention, a slide block is movably inserted into the side wall of the synchronous frame, a limiting rod is provided through the slide block, the bottom of the limiting rod is mounted on the base plate, a limiting plate is mounted on the top of the limiting rod, the diameter of the limiting plate is larger than the diameter of the limiting rod, a limiting spring is sleeved on the limiting rod, one end of the limiting spring is snapped onto the base plate, and the other end of the limiting spring is slidably disposed on the slide block.

[0018] In a preferred embodiment of the present invention, a guide wheel is rotatably mounted at the end of the synchronous frame, a countersunk groove is provided at the bottom of the support plate, the protrusion is provided inside the countersunk groove, and the guide wheel is slidably connected to the inner wall of the countersunk groove.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] In the silicone mold deformation stage, this invention utilizes the limiting effect of the top plate and the coordinated work of the drive assembly. The drive assembly moves the silicone mold upward, while the top plate provides stable constraint on the top of the mold, ensuring uniform deformation within a controllable range. This results in a uniform gap of consistent width between the workpiece and the mold cavity sidewall, reducing the problem of excessive local deformation or inconsistent gap size caused by uneven manual pulling force or arbitrary force direction, thus reducing the risk of cracking of the finished product under stress. Furthermore, in the separation stage, a progressive force adjustment design is adopted. Relying on the cooperation of the boss-shaped protrusion and the synchronous frame, in the initial stage of the pressure plate insertion, the synchronous frame is at the bottom with a larger protrusion size, and the synchronous frame is lifted up significantly, driving the pressure plate to effectively break the strong adhesion between the workpiece and the mold with greater force, ensuring smooth initial separation. As the insertion depth of the pressure plate increases, the synchronous plate slides towards the top with a smaller protrusion size, the lifting range of the synchronous frame decreases, and the squeezing force automatically slows down. This precisely matches the force requirements of different stages of demolding, avoiding separation difficulties caused by insufficient initial force and preventing deformation of the finished product caused by excessive force in the later stages.

[0021] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] In the attached diagram:

[0023] Figure 1 A perspective view of a resin craft casting auxiliary demolding device;

[0024] Figure 2 A front view of a resin craft casting auxiliary demolding device;

[0025] Figure 3 An internal view of the enclosure of a resin craft casting auxiliary demolding device;

[0026] Figure 4 A partial view of a resin craft casting auxiliary demolding device Figure 1 ;

[0027] Figure 5 A partial view of a resin craft casting auxiliary demolding device Figure 2 ;

[0028] Figure 6 A resin craft casting auxiliary demolding device Figure 5 Enlarged view of point A in the middle;

[0029] Figure 7 A partial view of a resin craft casting auxiliary demolding device Figure 3 ;

[0030] Figure 8 A partial view of a resin craft casting auxiliary demolding device Figure 4 ;

[0031] Figure 9 A partial view of a resin craft casting auxiliary demolding device Figure 5 ;

[0032] Figure 10 A diagram showing the channel connection of a resin craft casting auxiliary demolding device;

[0033] Figure 11 A resin craft casting auxiliary demolding device Figure 10 Enlarged view of point A in the middle.

[0034] In the picture:

[0035] 1. Base plate; 11. Support leg; 111. Gasket; 12. Bracket; 121. Mounting plate; 122. Cantilever; 123. Top plate; 13. Positioning frame; 131. First electric push rod; 132. Push plate; 133. L-shaped frame; 14. Silicone mold; 141. Positioning block; 15. Positioning plate; 151. Connecting frame; 152. Synchronizing rod; 153. Slider; 154. Slide groove; 155. Reset rod; 156. Reset spring; 16. Enclosure plate;

[0036] 2. Support plate; 21. Drive motor; 211. Drive shaft; 212. Insert shaft; 22. Lifting plate; 221. Second electric push rod; 222. Protrusion; 223. Guide rail; 224. Groove; 23. Threaded groove; 231. Guide block; 24. Pressure plate; 241. Vertical plate; 242. Slide plate; 243. Through groove; 244. Guide rod; 245. Guide spring; 25. Synchronizing frame; 251. Synchronizing plate; 252. Slide seat; 253. Limiting rod; 254. Limiting plate; 255. Limiting spring; 256. Guide wheel; 26. Countersunk groove; 261. Protrusion. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0038] Example 1:

[0039] like Figures 1 to 11 As shown, a resin craft casting auxiliary demolding device includes a substrate 1 and a top plate 123 placed above the substrate 1.

[0040] A bracket 12 is mounted on the substrate 1, a silicone mold 14 is placed on the substrate 1, and the top of the mold cavity of the silicone mold 14 corresponds to the top plate 123. A driving component for driving the silicone mold 14 to move upward is mounted on the substrate 1, and the limiting effect of the top plate 123 causes the silicone mold 14 to deform, and a gap is generated between the workpiece and the side wall of the mold cavity.

[0041] The base plate 1 is rotatably mounted with a support plate 2. The side wall of the support plate 2 is provided with a threaded groove 23. A guide block 231 is engaged inside the threaded groove 23. A pressure plate 24 is mounted on the guide block 231. The pressure plate 24 is inserted into the gap between the workpiece and the side wall of the mold cavity. The rotation of the support plate 2 is used to control the depth of the pressure plate 24 inserted into the gap between the workpiece and the mold cavity.

[0042] A timing frame 25 is installed at the bottom of the pressure plate 24. The end of the timing frame 25 is slidably connected to a protrusion 261 provided at the bottom of the support plate 2. The protrusion 261 is used to guide the pressure plate 24 to squeeze the workpiece, so that the workpiece and the mold cavity are separated. The protrusion 261 is in the shape of a boss, and the size of the top of the protrusion 261 is smaller than the size of the bottom. The size difference of the protrusion 261 is used to reduce the squeezing force as the pressure plate 24 is inserted deeper into the gap.

[0043] like Figure 1 , Figure 2 and Figure 3As shown, in a specific embodiment, four support legs 11 are installed at the bottom of the substrate 1. The four support legs 11 are in the shape of bosses, and each support leg 11 has a pad 111 installed at its bottom. The pad 111 has an anti-slip groove at its bottom. An mounting plate 121 is installed at the bottom of the bracket 12. The mounting plate 121 is connected to the substrate 1 by bolts. A cantilever 122 is installed at the top of the substrate 1. A top plate 123 is installed at the end of the cantilever 122. A surrounding plate 16 is installed on the substrate 1. The surrounding plate 16 and the substrate 1 form a storage cavity for collecting workpieces. The support legs 11, pads 111, and anti-slip grooves improve the stability of the substrate 1 and prevent the device from shaking during operation. The mounting plate 121 is bolted to securely connect the bracket 12 and the substrate 1, facilitating disassembly and maintenance later. The cantilever 122 provides stable support for the top plate 123, ensuring that the top plate 123 can effectively limit the silicone mold 14. The storage cavity formed by the surrounding plate 16 and the substrate 1 can collect workpieces in a timely manner, reducing the risk of workpieces falling and being damaged, and improving operational convenience.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the silicone mold 14 has a downward-facing cavity opening that corresponds vertically to the support plate 2. Positioning blocks 141 are installed at both ends of the silicone mold 14, and a positioning frame 13 is installed on the bracket 12. The positioning blocks 141 are positioned on the positioning frame 13. A positioning plate 15 is also vertically slidably mounted on the base plate 1, positioned above the positioning frame 13. The output end of the drive component acts on the positioning blocks 141. The downward-facing cavity opening of the silicone mold 14, corresponding vertically to the support plate 2, facilitates the direct placement of the workpiece onto the support plate 2 after demolding. The positioning blocks 141 and the positioning frame 13 cooperate to achieve initial positioning of the silicone mold 14, ensuring accurate positioning. The positioning plate 15 further limits the silicone mold 14. The drive component acting on the positioning blocks 141 precisely drives the silicone mold 14 upward, ensuring smooth subsequent deformation operations.

[0045] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the drive assembly further includes a first electric push rod 131. An L-shaped frame 133 is mounted on the bottom shell of the first electric push rod 131. One end of the L-shaped frame 133 is connected to the side wall of the bracket 12. A reinforcing rib is installed at the bend of the L-shaped frame 133. A push plate 132 is installed at the output end of the first electric push rod 131, and the push plate 132 is positioned below the positioning block 141. The L-shaped frame 133 provides stable mounting support for the first electric push rod 131. The reinforcing rib enhances the structural strength of the L-shaped frame 133 and prevents the first electric push rod 131 from shaking during operation. The push plate 132 increases the contact area between the first electric push rod 131 and the positioning block 141, enabling the first electric push rod 131 to push the positioning block 141 more smoothly, thereby driving the silicone mold 14 to move upward and improving the stability and reliability of the drive.

[0046] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, further, the side wall of the positioning plate 15 is equipped with several pairs of connecting brackets 151, and each connecting bracket 151 is equipped with a synchronizing rod 152 at its end. The two ends of the synchronizing rod 152 are equipped with sliders 153. The side wall of the bracket 12 is provided with a sliding groove 154. The slider 153 is slidably disposed on the sliding groove 154. A reset rod 155 is installed through the sliding groove. The reset rod 155 is movably connected to the slider 153. A reset spring 156 is sleeved on the reset rod 155. One end of the reset spring 156 is engaged with the side wall of the slider 153, and the other end of the reset spring 156 is engaged with the side wall of the sliding groove 154. The connecting frame 151, the synchronizing rod 152, the slider 153 and the slide groove 154 cooperate to realize the vertical sliding of the positioning plate 15 along the bracket 12, ensuring the stability of the movement of the positioning plate 15; the reset rod 155 guides the slider 153, and the reset spring 156 can drive the slider 153, the synchronizing rod 152, the connecting frame 151 and the positioning plate 15 to reset after demolding, without the need for manual operation, thus improving the automation level and work efficiency of the device.

[0047] Example 2:

[0048] The difference between the above embodiments and this embodiment is that: Figure 7 , Figure 8 and Figure 9As shown, a soft pad is installed on the top of the pallet 2 to prevent damage caused by the workpiece falling during demolding. A shaft 212 is installed at the rotation center of the pallet 2, and a drive shaft 211 is movably connected to the side wall of the shaft 212. A drive motor 21 is installed on the base plate 1, and the output shaft of the drive motor 21 and the drive shaft 211 are interconnected. The soft pad on the top of the pallet 2 can effectively buffer the impact force when the workpiece falls during demolding, avoid damage to the workpiece, and ensure the integrity of the workpiece. The drive motor 21, through the cooperation of the drive shaft 211 and the shaft 212, drives the pallet 2 to rotate, realizing the automated control of the rotation of the pallet 2. There is no need for manual rotation of the pallet 2, saving manpower and improving the accuracy of rotation control.

[0049] like Figure 7 and Figure 8 As shown, in a specific embodiment, a second electric push rod 221 is mounted on the base plate 1. A lifting plate 22 is mounted on the output end of the second electric push rod 221. A protrusion 222 is mounted on the lifting plate 22, and the top of the protrusion 222 is slidably connected to the bottom of the support plate 2. A groove 224 is formed on the protrusion 222. A guide rail 223 is mounted on the bottom of the support plate 2, and the guide rail 223 is arc-shaped. The guide rail 223 is slidably connected to the groove 224. The second electric push rod 221 is used to drive the support plate 2 to move upward and insert the pressure plate 24 into the gap between the workpiece and the side wall of the mold cavity. Through the sliding cooperation of the lifting plate 22, the protrusion 222, the guide rail 223, and the groove 224, the second electric push rod 221 can smoothly drive the support plate 2 to move upward, ensuring that the pressure plate 24 is accurately inserted into the gap between the workpiece and the side wall of the mold cavity. This achieves a high degree of automation, avoids workpiece damage caused by insertion position deviation during manual operation, and improves the accuracy and stability of the demolding operation.

[0050] like Figure 9 and Figure 10 As shown, further, the guide block 231 has a through groove 243 on its side wall, and a slide plate 242 is slidably disposed inside the through groove 243. A guide rod 244 is installed through the slide plate 242, and both ends of the guide rod 244 are installed on the side wall of the through groove 243. A limit spring 255 is sleeved on the guide rod 244. One end of the limit spring 255 is engaged with the side wall of the through groove 243, and the other end of the limit spring 255 is engaged with the slide plate 242. A vertical plate 241 is installed on the top of the slide plate 242, and the vertical plate 241 and the pressure plate 24 are connected to each other. A synchronization plate 251 is installed on the bottom of the slide plate 242, and the synchronization plate 251 and the synchronization frame 25 are connected to each other. The through slot 243, slide plate 242, and guide rod 244 work together to guide the movement of slide plate 242 and ensure that slide plate 242 moves smoothly; the limit spring 255 provides elastic support and reset for slide plate 242; the vertical plate 241 connects slide plate 242 and pressure plate 24; the synchronous plate 251 connects slide plate 242 and synchronous frame 25, so that pressure plate 24 can move synchronously with synchronous frame 25, ensuring the stability and coordination of pressure plate 24 when pressing workpiece.

[0051] like Figure 9 , Figure 10 and Figure 11 As shown, further, a slide block 252 is movably inserted into the side wall of the synchronous frame 25. A limit rod 253 is inserted through the slide block 252. The bottom of the limit rod 253 is mounted on the base plate 1, and a limit plate 254 is mounted on the top of the limit rod 253. The diameter of the limit plate 254 is larger than the diameter of the limit rod 253. A limit spring 255 is sleeved on the limit rod 253. One end of the limit spring 255 is engaged with the base plate 1, and the other end of the limit spring 255 is slidably mounted on the slide block 252. The slide block 252 cooperates with the limit rod 253 to provide guidance for the movement of the synchronous frame 25, ensuring smooth movement of the synchronous frame 25. The limit plate 254 can prevent the slide block 252 from falling off the limit rod 253, ensuring structural safety. The limit spring 255 provides elastic limiting for the slide block 252, further improving the stability of the movement of the synchronous frame 25 and ensuring that the pressure plate 24 can stably press the workpiece.

[0052] like Figure 9 , Figure 10 and Figure 11 As shown, furthermore, a guide wheel 256 is rotatably mounted at the end of the synchronous frame 25, and a countersunk groove 26 is formed at the bottom of the support plate 2. A protrusion 261 is set inside the countersunk groove 26, and the guide wheel 256 is slidably connected to the inner wall of the countersunk groove 26. The guide wheel 256 converts the sliding friction between the synchronous frame 25 and the inner wall of the countersunk groove 26 into rolling friction, reducing frictional resistance and making the synchronous frame 25 move more smoothly. The countersunk groove 26 provides installation space for the protrusion 261 and also limits the guide wheel 256, preventing the guide wheel 256 from derailing, ensuring the stability of the synchronous frame 25 and the protrusion 261, and thus ensuring the accuracy of the pressure control of the pressure plate 24.

[0053] The implementation principle of the resin craft casting auxiliary demolding device of the present invention is as follows:

[0054] First, the silicone mold 14 is placed on the substrate 1. The initial positioning of the silicone mold 14 is achieved through the cooperation of the positioning block 141 and the positioning frame 13. At this time, the opening of the mold cavity of the silicone mold 14 faces downward and corresponds vertically to the support plate 2 below. The four support legs 11 at the bottom of the substrate 1 provide stable support for the entire device. The pads 111 and anti-slip grooves at the bottom of the support legs 11 further enhance the stability of the device during placement and prevent shaking during demolding.

[0055] When demolding is required, the drive assembly starts working. The first electric push rod 131 is fixed to the bracket 12 via the L-shaped frame 133. The push plate 132 at its output end pushes the positioning block 141 upward, causing the silicone mold 14 to move upward as a whole. As the silicone mold 14 moves upward, its top will contact the top plate 123 at the end of the cantilever 122. Under the limiting action of the top plate 123, the silicone mold 14 is subjected to an upward pushing force and a downward resistance, thus deforming and creating a gap between the workpiece inside the mold and the side wall of the mold cavity, creating conditions for subsequent demolding. During this process, the positioning plate 15 is simultaneously lifted when the silicone mold 14 moves upward. The connecting frame 151 on its side wall drives the synchronizing rod 152 and the slider 153 to slide upward along the slide groove 154 of the bracket 12. The return spring 156 on the return rod 155 is compressed. After demolding is completed, the elastic force of the return spring 156 can drive the positioning plate 15 to return to its original position.

[0056] Subsequently, the second electric push rod 221 is activated, and the lifting plate 22 at its output end moves upward. The protrusion 222 on the lifting plate 22 slides with the bottom guide rail 223 of the support plate 2, causing the support plate 2 to move upward as a whole, so that the pressure plate 24 on the top of the support plate 2 aligns with the gap between the workpiece and the side wall of the mold cavity and is inserted into it. The rotation center of the support plate 2 is movably connected to the drive shaft 211 through the insertion shaft 212. When the drive motor 21 is working, it can drive the support plate 2 to rotate. The threaded groove 23 on the side wall of the support plate 2 meshes with the guide block 231. During the rotation of the support plate 2, the guide block 231, which is vertically limited, slides vertically under the guidance of the threaded groove 23, thereby controlling the depth of the pressure plate 24 inserted into the gap.

[0057] The bottom of the pressure plate 24 is connected to the slide plate 242 via the vertical plate 241. The slide plate 242 slides along the guide rod 244 within the through groove 243 of the guide block 231. The limiting spring 255 on the guide rod 244 provides elastic support for the slide plate 242. The synchronization plate 251 at the bottom of the slide plate 242 is connected to the synchronization frame 25. The guide wheel 256 at the end of the synchronization frame 25 slides in contact with the protrusion 261 in the countersunk groove 26 at the bottom of the support plate 2. The protrusion 261 is in the shape of a boss, and its top size is smaller than its bottom size. As the pressure plate 24 moves with the increase of insertion depth, the synchronization frame 25, in cooperation with the guide wheel 256 and the protrusion 261, drives the pressure plate 24 to exert a squeezing effect on the workpiece. Due to the size difference of the protrusion 261, the squeezing force gradually decreases as the pressure plate 24 is inserted deeper, avoiding excessive squeezing and damage to the workpiece. The slide 252 on the side wall of the synchronous frame 25 slides along the limiting rod 253, and the limiting spring 255 on the limiting rod 253 plays an elastic limiting role on the slide 252, ensuring the stability of the synchronous frame 25 movement.

[0058] The coordination between the timing frame 25 and the protrusion 261 is optimized to address the different force requirements at different stages during the demolding process: When the pressure plate is just inserted into the gap (shallow depth), the adhesion between the workpiece and the mold is strongest. At this time, the guide wheel 256 is at the bottom of the protrusion 261 (larger size position), the timing frame is lifted up to a large extent, and the pressure plate exerts a greater squeezing force on the workpiece, which can effectively break the initial adhesion; as the insertion depth increases, the contact area between the workpiece and the mold decreases and the adhesion weakens. At this time, the guide wheel gradually slides to the top of the protrusion (smaller size position), the lifting range of the timing frame decreases, and the squeezing force naturally slows down. This perfectly matches the actual requirement that "only a slight pushing force is needed to complete the separation in the later stage, avoiding excessive squeezing that causes deformation of the finished product." This "force-on-demand" design is more precise and controllable than manual operation.

[0059] Throughout the demolding process, the soft pad on top of the tray 2 acts as a buffer to protect the workpiece as it falls, preventing damage. The surrounding plate 16 on the base plate 1 forms a storage cavity with the base plate 1, which can collect the demolded workpiece for convenient subsequent processing. Through the coordinated work of the above components, efficient and stable demolding of resin crafts from silicone molds is achieved, ensuring the integrity of the workpiece and improving the automation and efficiency of the demolding operation.

Claims

1. A resin craft casting auxiliary demolding device, comprising a substrate (1) and a top plate (123) disposed above the substrate (1), characterized in that: A bracket (12) is installed on the substrate (1), a silicone mold (14) is placed on the substrate (1), and the top of the cavity of the silicone mold (14) corresponds to the top plate (123). A driving component for driving the silicone mold (14) to move upward is installed on the substrate (1), and the limiting effect of the top plate (123) causes the silicone mold (14) to deform, and a gap is generated between the workpiece and the side wall of the cavity. The base plate (1) is rotatably mounted with a support plate (2). The support plate (2) has a threaded groove (23) on its side wall. A guide block (231) is engaged inside the threaded groove (23). A pressure plate (24) is mounted on the guide block (231). The pressure plate (24) is inserted into the gap between the workpiece and the side wall of the mold cavity. The support plate (2) rotates to control the depth of the pressure plate (24) inserted into the gap between the workpiece and the mold cavity. The bottom of the pressure plate (24) is equipped with a timing frame (25). The end of the timing frame (25) is slidably connected to a protrusion (261) provided at the bottom of the support plate (2). The protrusion (261) is used to guide the pressure plate (24) to squeeze the workpiece, so that the workpiece and the mold cavity are separated. The protrusion (261) is in the shape of a boss, and the size of the top of the protrusion (261) is smaller than the size of the bottom. The size difference of the protrusion (261) is used to reduce the squeezing force as the pressure plate (24) is inserted deeper into the gap.

2. The resin craft casting auxiliary demolding device according to claim 1, characterized in that, The base plate (1) is equipped with four support legs (11) at the bottom. The four support legs (11) are in the shape of bosses. Each support leg (11) is equipped with a pad (111) at the bottom. The pad (111) has an anti-slip groove at the bottom. The bracket (12) is equipped with an mounting plate (121) at the bottom. The mounting plate (121) is connected to the base plate (1) by bolts. The base plate (11) is equipped with a cantilever (122) at the top. The cantilever (122) is equipped with a top plate (123) at the end. The base plate (11) is equipped with a surrounding plate (16). The surrounding plate (16) and the base plate (1) form a storage cavity and are used to collect workpieces.

3. The resin craft casting auxiliary demolding device according to claim 1, characterized in that, The opening of the silicone mold (14) faces downward and is vertically aligned with the support plate (2). Positioning blocks (141) are installed at both ends of the silicone mold (14). A positioning frame (13) is installed on the bracket (12). The positioning blocks (141) are positioned on the positioning frame (13). A positioning plate (15) is also vertically slidably mounted on the substrate (1), and the positioning plate (15) is located above the positioning frame (13). The output end of the drive component acts on the positioning blocks (141).

4. The resin craft casting auxiliary demolding device according to claim 3, characterized in that, The drive assembly includes a first electric push rod (131), an L-shaped frame (133) is installed on the bottom shell of the first electric push rod (131), one end of the L-shaped frame (133) is connected to the side wall of the bracket (12), a reinforcing rib is installed at the bend of the L-shaped frame (133), and a push plate (132) is installed at the output end of the first electric push rod (131), the push plate (132) is placed below the positioning block (141).

5. The resin craft casting auxiliary demolding device according to claim 3, characterized in that, The positioning plate (15) has several pairs of connecting frames (151) installed on its side wall. Each connecting frame (151) has a synchronizing rod (152) installed at its end. The synchronizing rod (152) has sliders (153) installed at both ends. The bracket (12) has a sliding groove (154) on its side wall. The slider (153) is slidably mounted on the sliding groove (154). A reset rod (155) is installed through the sliding groove. The reset rod (155) is movably connected to the slider (153). A reset spring (156) is sleeved on the reset rod (155). One end of the reset spring (156) is engaged with the side wall of the slider (153), and the other end of the reset spring (156) is engaged with the side wall of the sliding groove (154).

6. The resin craft casting auxiliary demolding device according to claim 1, characterized in that, The top of the pallet (2) is fitted with a soft pad, which is used to prevent the workpiece from falling off the mold and causing damage. The center of rotation of the pallet (2) is fitted with a shaft (212), and the side wall of the shaft (212) is movably connected to a drive shaft (211). The base plate (1) is fitted with a drive motor (21), and the output shaft of the drive motor (21) and the drive shaft (211) are connected to each other.

7. The resin craft casting auxiliary demolding device according to claim 1, characterized in that, A second electric push rod (221) is installed on the base plate (1). A lifting plate (22) is installed at the output end of the second electric push rod (221). A protrusion (222) is installed on the lifting plate (22), and the top of the protrusion (222) is slidably connected to the bottom of the support plate (2). A groove (224) is opened on the protrusion (222). A guide rail (223) is installed at the bottom of the support plate (2), and the guide rail (223) is arc-shaped. The guide rail (223) is slidably connected to the groove (224). The second electric push rod (221) is used to drive the support plate (2) to move upward and insert the pressure plate (24) into the gap between the workpiece and the side wall of the mold cavity.

8. The resin craft casting auxiliary demolding device according to claim 1, characterized in that, The guide block (231) has a through groove (243) on its side wall. A slide plate (242) is slidably installed inside the through groove (243). A guide rod (244) is installed through the slide plate (242). Both ends of the guide rod (244) are installed on the side wall of the through groove (243). A limit spring (255) is sleeved on the guide rod (244). One end of the limit spring (255) is engaged with the side wall of the through groove (243), and the other end of the limit spring (255) is engaged with the slide plate (242). A vertical plate (241) is installed on the top of the slide plate (242), and the vertical plate (241) and the pressure plate (24) are connected to each other. A synchronization plate (251) is installed on the bottom of the slide plate (242), and the synchronization plate (251) and the synchronization frame (25) are connected to each other.

9. A resin craft casting auxiliary demolding device according to claim 1, characterized in that, The side wall of the synchronous frame (25) is movably connected to a slide block (252). A limit rod (253) is provided through the slide block (252). The bottom of the limit rod (253) is installed on the base plate (1). A limit plate (254) is installed on the top of the limit rod (253). The diameter of the limit plate (254) is larger than the diameter of the limit rod (253). A limit spring (255) is sleeved on the limit rod (253). One end of the limit spring (255) is snapped onto the base plate (1), and the other end of the limit spring (255) is slidably disposed on the slide block (252).

10. A resin craft casting auxiliary demolding device according to claim 1, characterized in that, The end of the synchronous frame (25) is rotatably mounted with a guide wheel (256), the bottom of the support plate (2) is provided with a countersunk groove (26), the protrusion (261) is provided inside the countersunk groove (26), and the guide wheel (256) is slidably connected to the inner wall of the countersunk groove (26).

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