Toy demolding strong demolding mechanism and mold thereof

Abstract

The utility model relates to toy molding technical field provides a kind of toy demolding strong demolding mechanism and its mould, including ejector pin assembly, support rod, back template, fixed assembly, back mould die and power source;The ejector pin assembly is arranged below the back template, the back mould die is configured in the upper portion of the back template and jointly encloses accommodating space, the fixed assembly is configured in the accommodating space, the back mould die has cavity on, the upper portion of the fixed assembly is equipped with the ejection assembly and the upper end of the ejection assembly contacts the product.The utility model is configured straight ejector rod and inclined ejector rod, and the ejector pin is through straight ejector rod, under the cooperation of ejector pin assembly, support rod, fixed assembly, power source, the ejection action of multiple stages can be realized to further realize the strong demolding of product, without very big demolding space can realize inverted buckle demolding, simple structure, convenient operation, demolding efficiency is high, guarantees product quality, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of toy molding technology, specifically to a toy demolding mechanism and its mold. Background Technology

[0002] Currently, the production process of toy parts generally adopts a production process that combines injection molding machines and molds. However, general plastic molds can only produce relatively simple plastic parts. For toy parts with undercut structures on the outer surface, the lack of sufficient deformation space often leads to the undercuts tearing during demolding, resulting in product failure. Therefore, there is an urgent need to design a new strong demolding mechanism to solve the above problems and ensure product quality. Utility Model Content

[0003] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a toy demolding mechanism and its mold.

[0004] According to the present invention, a toy demolding mechanism includes an ejector pin assembly, a support rod, a rear template, a fixing assembly, a rear mold core, and a power source. The ejector pin assembly is arranged below the rear mold plate, the rear mold core is arranged on the upper part of the rear mold plate and together form a receiving space, the fixing assembly is arranged in the receiving space, the rear mold core has a cavity for receiving the product, the upper part of the fixing assembly is provided with an ejector assembly and the upper end of the ejector assembly contacts the product, and the lower end of the ejector assembly is arranged on the fixing assembly. The upper and lower ends of the support rod are respectively connected to the fixing component and the ejector component. The ejector component is equipped with an ejector pin, and the upper end of the ejector pin extends into the interior of the ejector component. When the power source drives the ejector assembly to move upward for the first stroke, the support rod can synchronously drive the fixing assembly to move upward, thereby causing the ejector assembly to eject the product from the cavity; when the power source drives the ejector assembly to continue moving upward for the second stroke, it can drive the ejector to move upward, thereby causing the product to detach from the ejector assembly, thereby causing the product to complete demolding.

[0005] Preferably, the ejection assembly includes a straight ejector rod and an angled ejector rod, with the two angled ejector rods arranged on both sides of the straight ejector rod, and the tops of both the straight ejector rod and the angled ejector rod contacting the bottom of the product.

[0006] Preferably, the top of the side of the inclined push rod facing the straight push rod has an incline, and in its natural state, the inclined push rod has an offset from the gap.

[0007] Preferably, the product has a buckle located on the inside and / or outside of the product.

[0008] Preferably, the buckle has a recessed structure.

[0009] Preferably, the ejector pin assembly includes an ejector pin push plate, an ejector pin plate, and an ejector pin panel, which are arranged sequentially from bottom to top. The lower end of the support rod is disposed on the ejector pin push plate, and the lower end of the ejector pin is disposed on the ejector pin panel.

[0010] Preferably, when the power source drives the ejector assembly to move upward for the first stroke, the ejector push plate is limited and locked, so that when the power source continues to move upward, only the ejector plate and the ejector panel are pushed upward synchronously.

[0011] Preferably, the fixing assembly includes an insert base plate and an insert fixing plate arranged above the insert base plate, and the lower ends of the straight push rod and the inclined push rod are both disposed on the insert fixing plate.

[0012] Preferably, the insert fixing plate is further provided with a return rod, which passes through the rear mold core. When the power source drives the ejector pin assembly to move upward for the first stroke, the upper end of the return rod extends above the rear mold core.

[0013] Preferably, it also includes a front mold assembly, which, when driven to move downward, can drive the return rod downward, thereby causing the ejector pin assembly and the fixing assembly to return to their initial positions.

[0014] Preferably, the front mold assembly includes a front mold core and a front template. The front mold core is disposed at the lower part of the front template, and a guide post is disposed on the rear template. The front template is fitted onto the guide post and can guide the movement of the front template.

[0015] Preferably, the first stroke is 3-10 mm and the second stroke is 2-8 mm.

[0016] Preferably, the first stroke is 5-8 mm.

[0017] Preferably, the first stroke is 6-7 mm.

[0018] Preferably, the second stroke is 3 to 7 mm.

[0019] Preferably, the second stroke is 4 to 6 mm.

[0020] A mold according to the present invention includes the aforementioned toy demolding mechanism.

[0021] Compared with the prior art, the present invention has the following beneficial effects: This utility model, by configuring a straight ejector rod and an angled ejector rod, and having the ejector pin pass through the straight ejector rod, can achieve multi-stage ejection action with the cooperation of the ejector pin assembly, support rod, fixing assembly, and power source, thereby achieving strong product demolding. It can achieve inverted demolding without a large demolding space, has a simple structure, is easy to operate, has high demolding efficiency, ensures product quality, and has strong practicality. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the toy demolding mechanism; Figure 2 This is a cross-sectional view of the toy's demolding mechanism, with the ejector pin assembly and fixing assembly in their initial states. Figure 3 This is a schematic cross-sectional view of the structure during the first stroke of the ejector pin pushing the plate upward. Figure 4 for Figure 3 Enlarged structural diagram of part A in the middle; Figure 5 This is a schematic cross-sectional view of the product after it has been forcibly removed. Figure 6 for Figure 5 Enlarged structural diagram of section B in the middle; Figure 7 This is a structural diagram of the product; Figure 8 This is a schematic diagram of the structure at the top of the inclined top rod; Figure 9 This is a schematic diagram of the front structure of the limiting component; Figure 10 A front view diagram showing the structure when the locking pin limits the push plate of the ejector pin; Figure 11 This is a schematic diagram of the front structure after the ejector plate and ejector pusher plate are separated. Figure 12 This is a schematic cross-sectional view of the structure during the movement of the ejector plate, ejector pusher plate, and ejector panel. Figure 13 This is a schematic cross-sectional view of the structure in two states of the locking pin.

[0023] The diagram shows: Product 1; Deduct 11; Ejector pusher plate 21; Locking pin 211; Support frame 2111; Spring 2112; Slider 2113; Guide post 2114; First limiting component 212; Second limiting component 213; Ejector plate 22; Straight push rod 221; Support rod 222; Thimble 223; Ejector panel 23; Template 24; Inlay base plate 241; Insert fixing plate 242; Retract lever 243; Angled top rod 244; Guide post 245; Post-molded core 25; Anterior mold core 26; Previous template 27; Top stick 3. Detailed Implementation

[0024] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0025] To address the issue of easily damaged undercuts during demolding of toy products with inverted designs on both the inner and outer sides, this invention provides a strong demolding mechanism for toys, such as... Figure 1 , Figure 2 , Figure 7 As shown, the assembly includes an ejector pin assembly, a support rod 222, a rear template 24, a fixing assembly, a rear mold core 25, and a power source. The ejector pin assembly is arranged below the rear template 24, and the rear mold core 25 is arranged above the rear template 24, together forming a receiving space. The fixing assembly is arranged in the receiving space and can move up and down in the receiving space. The upper part of the rear mold core 25 has a cavity for accommodating the product 1. An ejector assembly is arranged above the fixing assembly. The upper end of the ejector assembly contacts the product 1, and the lower end of the ejector assembly is arranged on the fixing assembly. The ejector assembly can eject the product 1, thereby causing the product 1 to detach from the rear mold core 25.

[0026] like Figure 1 , Figure 2As shown, the upper and lower ends of the support rod 222 are connected to the fixing component and the ejector assembly, respectively. The ejector assembly is equipped with an ejector pin 223, the upper end of which extends into the interior of the ejector assembly. When the power source drives the ejector assembly to move upward for the first stroke, the ejector assembly can drive the support rod 222 to move. At this time, the support rod 222 can synchronously drive the fixing component to move upward, thereby causing the ejector assembly to move upward and eject the product 1 from the cavity. When the power source drives the ejector assembly to continue moving upward for the second stroke, it can drive the ejector pin 223 to move upward relative to the ejector assembly, thereby causing the product 1 to detach from the ejector assembly, so that the product 1 completes demolding.

[0027] It should be noted that the first stroke is 3-10 mm, for example, 5-8 mm; another example is 6-7 mm. The second stroke is 2-8 mm, for example, 3-7 mm, another example is 4-6 mm, and yet another example is 5 mm.

[0028] Specifically, the ejector assembly includes a straight ejector rod 221 and two angled ejector rods 244. The two angled ejector rods 244 are arranged on both sides of the straight ejector rod 221. Preferably, the angled ejector rods 244 contact the straight ejector rod 221, and the tops of both the straight ejector rod 221 and the angled ejector rods 244 contact the bottom of the product 1. It should be noted that one end of the product 1 has a buckle 11, which is located on the inner and / or outer side of the product 1. The buckle 11 is preferably a recessed structure, and it is arranged in a functional position on the product 1, such as... Figure 7 As shown, the tops of the straight ejector pin 221 and the angled ejector pin 244 together surround the undercut 11, that is, the rear mold core 25, the straight ejector pin 221, and the angled ejector pin 244 together form the cavity.

[0029] It should be noted that the top of the side of the inclined push rod 244 facing the straight push rod 221 has an incline, and in its natural state, the inclined push rod 244 is offset from the gap, such as... Figure 8 As shown, when product 1 is not ejected from the cavity, the tops of the inclined ejector 244, the undercut 11, and the straight ejector 221 are tightly connected. Due to the slope, the top of the inclined ejector 244 tends to bend away from the top of the straight ejector 221. When the inclined ejector 244 and the straight ejector 221 are ejected, the inclined ejector 244 deviates slightly from the straight ejector 221 under the action of the slope, causing the clamping of the undercut 11 to be released. When the ejector pin 223 moves upward, product 1 can be released from the ejection assembly with a very small force, completing the demolding. Therefore, the toy demolding mechanism of this utility model is very suitable for the demolding operation of product 1 with undercuts 11 on the inner and / or outer sides, and has strong practicality.

[0030] The power source in this invention is the injection molding machine ejector roller 3. The connection structure between the injection molding machine ejector roller 3 and the ejector push plate 21, ejector plate 22, and ejector panel 23 is prior art and can be implemented in various ways. For example, a pin and slot mating structure can be used. The end of the injection molding machine ejector roller 3 passes through the ejector push plate 21 and contacts the ejector plate 22. A pin is fixed on the side and inserted into a long slot on the ejector push plate 21. Initially, the pin is at one end of the slot, and friction can drive the ejector push plate 21 to move. When the ejector push plate 21 is locked, the pin overcomes friction and slides in the slot, and the end of the injection molding machine ejector roller 3 pushes the ejector plate 22 and ejector panel 23 to continue moving. Other connection methods in the prior art can also be used between the end of the injection molding machine ejector roller 3 and the ejector push plate 21, which will not be described in detail here.

[0031] like Figure 1 , Figure 2 As shown, the ejector assembly includes an ejector push plate 21, an ejector plate 22, and an ejector panel 23. The ejector push plate 21, ejector plate 22, and ejector panel 23 are arranged sequentially from bottom to top. The lower end of the support rod 222 is disposed on the ejector push plate 21, and the lower end of the ejector 223 is disposed on the ejector panel 23. When the power source drives the ejector assembly to move upward for the first stroke, the ejector push plate 21 is limited and locked. Then, when the power source continues to move upward, only the ejector plate 22 and the ejector panel 23 are pushed upward synchronously.

[0032] Furthermore, the ejector plate 21 can be limited and locked by a limiting component, which includes a first limiting member 212, a second limiting member 213, and a locking pin 211, such as... Figure 9 , Figure 10 , Figure 11 As shown, the upper end of the first limiting member 212 is disposed on the rear template 24. The rear end of the locking pin 211 is provided with a spring 2112 and a guide post 2114. The spring 2112 is fitted onto the guide post 2114. Both the locking pin 211 and the spring 2112 are disposed on the ejector plate 22 via a support frame 2111. The locking pin 211 can slide relative to the support frame 2111. The end of the support frame 2111 has a slider 2113. The ejector plate 22 has a groove. The end of the slider 2113 has a T-shaped structure and extends into the groove. The end of the slider 2113 matches the groove and can slide within it. Figure 13 As shown.

[0033] Furthermore, the lower end of the second limiting member 213 is disposed on the ejector pin push plate 21. The upper end of the second limiting member 213 has a U-shaped opening, and the inner side of the lower end of the first limiting member 212 is a slope. When the ejector pin push plate 21 moves upward, it drives the second limiting member 213 to move upward, and at the same time pushes the ejector pin plate 22 and the ejector pin panel 23 to move upward. At this time, the locking pin 211 slides upward along the slope, and the spring 2112 is compressed. When the ejector pin push plate 21 moves upward for the first stroke, the locking pin 211 is blocked by the flat surface at the bottom of the first limiting member 212 and cannot move upward. The ejector pin push plate 21 is limited and locked. Figure 12 As shown, at this time, the lower end of the first limiting member 212 is inserted into the U-shaped opening of the second limiting member 213. When the ejector roller 3 continues to push the ejector plate 22 and ejector panel 23 to move, the ejector push plate 21 separates from the ejector plate 22 and ejector panel 23, and the slider 2113 slides in the groove. It should be noted that the stroke of the slider 2113 in the groove can meet the demolding requirements. Therefore, the slider 2113 is always in the groove during the demolding process.

[0034] like Figure 2 As shown, the fixing assembly includes an insert base plate 241 and an insert fixing plate 242 arranged above the insert base plate 241. The lower ends of the straight ejector rod 221 and the inclined ejector rod 244 are detachably mounted on the insert fixing plate 242. The insert fixing plate 242 is also equipped with a return rod 243, which passes through the rear mold core 25. When the power source drives the ejector pin assembly to move upward for the first stroke, the upper end of the return rod 243 extends above the rear mold core 25.

[0035] This utility model is also equipped with a front mold assembly, which can drive the return rod 243 to move downward when the front mold assembly is driven to move downward, thereby causing the ejector pin assembly and the fixing assembly to return to their initial positions.

[0036] Furthermore, the front mold assembly includes a front mold core 26 and a front template 27. The front mold core 26 is disposed at the lower part of the front template 27. A guide post 245 is disposed on the rear template 24. The front template 27 is fitted onto the guide post 245. The guide post 245 is used to guide the movement of the front template 27. Preferably, four guide posts 245 are configured. When the front template 27 moves downward along the guide post 245, the front template 27 abuts against the top of the guide post 245 and pushes the guide post 245 downward. This causes the insert fixing plate 242 and the insert base plate 241 to move downwards together until the insert base plate 241 abuts against the rear template 24, thus returning the insert fixing plate 242 and the insert base plate 241 to their initial positions. Simultaneously, since the insert base plate 241 is connected to the upper end of the support rod 222, and the lower end of the support rod 222 is connected to the ejector push plate 21, the ejector push plate 21 is also pushed back to its initial position via the support rod 222. Additionally, the ejector plate 22 and the ejector panel 23 are pulled back to their initial positions via the power source.

[0037] This utility model also provides a mold, including a toy demolding mechanism.

[0038] The working principle of this utility model is as follows: Mold 2 is designed with three plates: ejector push plate 21, ejector plate 22, and ejector face plate 23. When the product is demolded, ejector roller 3 pushes out, causing the three plates to push out for the first stroke. Then, ejector push plate 21 is locked and limited by locking pin 211. During this process, support rod 222 drives insert fixing plate 242 and insert base plate 241 to move upwards. At this time, straight ejector rod 221 and angled ejector rod 244 move synchronously, causing product 1 to detach from the rear mold core 25. Figure 3 , Figure 4 As shown.

[0039] Next, as the ejector roller 3 continues to push out, driving the ejector plate 22 and ejector panel 23 to move outward, the ejector pusher plate 21 separates from the ejector plate 22 and ejector panel 23. The ejector plate 22 drives the ejector pin 223 to move upward relative to the straight ejector rod 221, ejecting product 1 to achieve strong removal. Figure 5 , Figure 6 As shown.

[0040] It should be noted that after the preceding actions are completed, when the front mold core 26 and the front template 27 retract during mold closing, the front template 27 presses against the retraction rod 243 to return the insert base plate 241 to its original position, and the ejector push plate 21 is returned to its original position through the support rod 222. The ejector plate 22 and the ejector panel 23 are driven back to their original positions by the ejector roller 3.

[0041] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A toy demolding mechanism, characterized in that, It includes an ejector pin assembly, a support rod (222), a rear template (24), a fixing assembly, a rear mold core (25), and a power source; The ejector pin assembly is arranged below the rear mold plate (24), the rear mold core (25) is arranged on the upper part of the rear mold plate (24) and together they form a receiving space, the fixing assembly is arranged in the receiving space, the rear mold core (25) has a cavity for receiving the product (1), the upper part of the fixing assembly is provided with an ejector assembly and the upper end of the ejector assembly contacts the product (1), and the lower end of the ejector assembly is arranged on the fixing assembly; The upper and lower ends of the support rod (222) are respectively connected to the fixing component and the ejector component. The ejector component is equipped with an ejector pin (223), and the upper end of the ejector pin (223) extends into the interior of the ejector component. When the power source drives the ejector assembly to move upward for the first stroke, the support rod (222) can synchronously drive the fixing assembly to move upward, thereby causing the ejector assembly to eject the product (1) from the cavity; when the power source drives the ejector assembly to continue moving upward for the second stroke, it can drive the ejector (223) to move upward, thereby causing the product (1) to detach from the ejector assembly, thereby causing the product (1) to complete demolding.

2. The toy demolding mechanism according to claim 1, characterized in that, The ejection assembly includes a straight ejector rod (221) and an angled ejector rod (244). The two angled ejector rods (244) are arranged on both sides of the straight ejector rod (221). The tops of the straight ejector rod (221) and the angled ejector rods (244) are in contact with the bottom of the product (1).

3. The toy demolding mechanism according to claim 2, characterized in that, The top of the inclined push rod (244) facing the straight push rod (221) has an incline, and in its natural state, the inclined push rod (244) has a gap offset.

4. The toy demolding mechanism according to claim 1, characterized in that, The product (1) has a buckle (11) located on the inside and / or outside of the product (1).

5. The toy demolding and forced release mechanism according to claim 4, characterized in that, The buckle (11) has a recessed structure.

6. The toy demolding and forced release mechanism according to claim 1, characterized in that, The ejector assembly includes an ejector push plate (21), an ejector plate (22), and an ejector panel (23). The ejector push plate (21), ejector plate (22), and ejector panel (23) are arranged sequentially from bottom to top. The lower end of the support rod (222) is disposed on the ejector push plate (21), and the lower end of the ejector (223) is disposed on the ejector panel (23).

7. The toy demolding mechanism according to claim 6, characterized in that, When the power source drives the ejector assembly to move upward for the first stroke, the ejector push plate (21) is limited and locked. Then, when the power source continues to move upward, it only pushes the ejector plate (22) and the ejector panel (23) to move upward synchronously.

8. The toy demolding mechanism according to claim 2, characterized in that, The fixing assembly includes an insert base plate (241) and an insert fixing plate (242) arranged above the insert base plate (241), and the lower ends of the straight push rod (221) and the inclined push rod (244) are both arranged on the insert fixing plate (242).

9. The toy demolding mechanism according to claim 8, characterized in that, The insert fixing plate (242) is also provided with a return rod (243), which passes through the rear mold core (25). When the power source drives the ejector pin assembly to move upward for the first stroke, the upper end of the return rod (243) extends above the rear mold core (25).

10. The toy demolding and forced release mechanism according to claim 9, characterized in that, It also includes a front mold assembly, which, when driven to move downward, can drive the return rod (243) downward, thereby causing the ejector pin assembly and the fixing assembly to return to their initial positions.

11. The toy demolding mechanism according to claim 10, characterized in that, The front mold assembly includes a front mold core (26) and a front template (27). The front mold core (26) is disposed at the lower part of the front template (27). A guide post (245) is disposed on the rear template (24). The front template (27) is fitted onto the guide post (245) and can guide the movement of the front template (27).

12. The toy demolding mechanism according to claim 1, characterized in that, The first stroke is 3-10 mm, and the second stroke is 2-8 mm.

13. The toy demolding mechanism according to claim 1, characterized in that, The first stroke is 5-8 mm.

14. The toy demolding mechanism according to claim 13, characterized in that, The first stroke is 6-7 mm.

15. The toy demolding mechanism according to claim 14, characterized in that, The second stroke is 3 to 7 mm.

16. The toy demolding mechanism according to claim 15, characterized in that, The second stroke is 4 to 6 mm.

17. A mold, characterized in that, Includes the toy demolding mechanism according to any one of claims 1 to 16.

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