Demolding mechanism and plastic uptake forming mold

Abstract

The utility model discloses a kind of demolding mechanism and plastic uptake forming die, demolding mechanism, including mounting seat, rotating part, reset mechanism, rotating part is rotatably arranged in mounting seat, rotating part is equipped with forming part, rotating part can be rotated to first position and second position;Reset mechanism is located in mounting seat, reset mechanism can reset rotating part to first position;Wherein, rotating part rotates to first position, forming part protrudes from the forming cavity wall of plastic uptake forming die, to form concave structure on the outer surface of plastic uptake product, when plastic uptake product is demolded upwards, rotating part can be rotated to second position by concave structure and forming part drive, to let out the passage for plastic uptake product to be demolded upwards from plastic uptake forming die, the quick demolding of plastic uptake product can be realized by above-mentioned mechanism, improve the efficiency of plastic uptake operation, and can reduce damage to plastic uptake product.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming molds, and in particular to a demolding mechanism and a vacuum forming mold. Background Technology

[0002] Vacuum forming typically involves heating a flat sheet of rigid plastic until it softens, then vacuum-adhering it to a mold surface. After cooling, it solidifies and is commonly used to manufacture housings. Vacuum-formed products often feature an undercut structure (for housing assembly). In traditional vacuum forming molds, protrusions are usually placed on the inner wall of the mold to form the undercut structure. The product is then easily removed using its elasticity. However, this process can only handle undercuts with a shallow depth (less than 2mm), which results in poor stability. To address this, inserts are now sometimes used in vacuum forming molds to increase the depth of the undercut structure. These inserts require a dedicated drive mechanism to extend into the mold cavity (during forming) or retract (when removing the product). This complicates the mold structure, necessitates a dedicated drive mechanism and control system, increases mold costs, and reduces the efficiency of product forming and demolding. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a demolding mechanism.

[0004] This utility model also proposes a vacuum forming mold.

[0005] According to a first aspect of the present invention, a demolding mechanism includes a mounting base, a rotating member, and a resetting mechanism. The rotating member is rotatably disposed on the mounting base and has a forming part. The rotating member can rotate to a first position and a second position. The resetting mechanism is disposed on the mounting base and can reset the rotating member to the first position. When the rotating member rotates to the first position, the forming part protrudes from the forming cavity wall of the vacuum forming mold to form a concave structure on the outer surface of the vacuum forming product. When the vacuum forming product is demolded upwards, the concave structure and the forming part can drive the rotating member to rotate to the second position, forming a clearance structure that allows the vacuum forming product to detach upwards from the vacuum forming mold, thereby creating a channel for the vacuum forming product to detach upwards from the vacuum forming mold.

[0006] The demolding mechanism according to the embodiments of this utility model has at least the following beneficial effects: the rotating part can be reset to the first position by the reset mechanism, so that the forming part protrudes from the forming cavity wall of the vacuum forming mold. The forming part cooperates with the forming cavity wall of the vacuum forming mold, and can form a concave structure on the outer surface of the vacuum forming product during vacuum forming, thereby realizing the forming of the concave structure. When the vacuum forming product is taken out upward, the forming part is driven by the concave structure, so that the rotating part rotates to the second position, forming a clearance structure that allows the vacuum forming product to detach from the vacuum forming mold upward, making way for the vacuum forming product to move upward, so that the vacuum forming product can be demolded quickly. When the vacuum forming product moves upward to a position where it does not contact the rotating part, the rotating part can be reset to the first position by the reset mechanism, waiting for the next vacuum forming operation. The above mechanism can realize the rapid demolding of the vacuum forming product and improve the efficiency of the vacuum forming operation.

[0007] According to some embodiments of the present invention, the demolding mechanism further includes a limiting structure, which can cooperate with the reset mechanism to position the rotating member to the first position.

[0008] According to some embodiments of the present invention, the rotating member is provided with a driving part, the rotating member is rotatably mounted to the mounting base via a rotating shaft, the driving part and the forming part are distributed opposite to each other on both sides of the rotating shaft, the limiting structure includes a limiting part disposed on the mounting base and corresponding to the driving part, and the reset mechanism can generate an upward elastic force on the driving part and drive the driving part to press against the limiting part, so as to position the rotating member to the first position.

[0009] According to some embodiments of the present invention, the limiting part is provided with a first limiting surface, the upper part of the driving part is provided with a second limiting surface, and when the rotating member is in the first position, the second limiting surface and the first limiting surface abut against each other.

[0010] According to some embodiments of the present invention, the second limiting surface and the first limiting surface are mutually corresponding inclined surfaces.

[0011] According to some embodiments of this utility model, the reset mechanism is a spring-loaded mechanism, which includes a base, a movable pin, and a spring. The base is installed on the mounting base, and the base is provided with a guide hole for the movable pin to be inserted and slid. The spring is located in the guide hole, and one end of the spring presses against the movable pin, while the other end presses against the bottom of the guide hole. The upper end of the movable pin presses against the rotating member.

[0012] According to some embodiments of the present invention, the rotating member is provided with a driving part, the rotating member is rotatably mounted to the mounting base via a rotating shaft, the driving part and the forming part are distributed opposite to each other on both sides of the rotating shaft, the lower part of the driving part is provided with a pressing surface, and the upper end of the movable pin presses against the pressing surface.

[0013] According to some embodiments of the present invention, the top pressing surface is an inclined surface, and the top pressing surface extends obliquely upward in a direction away from the rotating shaft.

[0014] According to some embodiments of this utility model, the upper end of the movable pin has a spherical structure.

[0015] According to a second aspect of the present invention, a vacuum forming mold includes a demolding mechanism according to any of the first aspects of the present invention.

[0016] The vacuum forming mold according to the embodiments of the present utility model has at least the following beneficial effects: it can realize the rapid demolding of vacuum-formed products and improve the efficiency of vacuum forming operations. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the demolding mechanism according to an embodiment of the present invention; Figure 2 This is an exploded view of the demolding mechanism according to an embodiment of the present utility model; Figure 3 This is a schematic cross-sectional view of the demolding mechanism according to an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the application of the vacuum forming mold according to an embodiment of the present utility model; Figure 5 This is an exploded view of the vacuum forming mold used in an embodiment of this utility model. Figure 6 This is a partial cross-sectional schematic diagram of the vacuum forming mold when the rotating component is in the first position according to an embodiment of the present invention; Figure 7 This is a partial cross-sectional schematic diagram of the vacuum forming mold when the rotating part is in the second position according to an embodiment of the present invention.

[0018] Figure label: Mounting base 100, limiting part 110, first limiting surface 111; Rotating component 200, forming part 210, driving part 220, second limiting surface 221, pressing surface 222, rotating shaft 230; Base 310, guide hole 311, movable pin 320, spring 330; Vacuum forming mold 900, vacuum forming product 910, concave structure 911. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0021] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] like Figures 1 to 7 As shown, the demolding mechanism according to an embodiment of the present invention includes a mounting base 100, a rotating member 200, and a reset mechanism. The rotating member 200 is rotatably disposed on the mounting base 100 and has a forming part 210. The rotating member 200 can rotate to a first position and a second position. The reset mechanism is disposed on the mounting base 100 and can reset the rotating member 200 to the first position. When the rotating member 200 rotates to the first position, the forming part 210 protrudes from the forming cavity wall of the vacuum forming mold 900 to form a concave structure 911 on the outer surface of the vacuum forming product 910. When the vacuum forming product 910 is demolded upwards, the concave structure 911 and the forming part 210 can drive the rotating member 200 to rotate to the second position, forming a clearance structure that allows the vacuum forming product 910 to detach upwards from the vacuum forming mold 900, thereby creating a channel for the vacuum forming product 910 to detach upwards from the vacuum forming mold 900.

[0024] The rotating component 200 can be reset to the first position by the reset mechanism, so that the forming part 210 protrudes from the forming cavity wall of the vacuum forming mold 900. The forming part 210 cooperates with the forming cavity wall of the vacuum forming mold 900, and can form a concave structure 911 on the outer surface of the vacuum forming product 910 during vacuum forming, thereby forming the concave structure 911. When the vacuum forming product 910 is taken out upward, the forming part 210 is driven by the concave structure 911, so that the rotating component 200 rotates to the second position, forming a clearance structure that allows the vacuum forming product 910 to detach upward from the vacuum forming mold 900, making way for the vacuum forming product 910 to move upward, so that the vacuum forming product 910 can be demolded quickly. When the vacuum forming product 910 moves upward to a position where it does not contact the rotating component 200, the rotating component 200 can be reset to the first position by the reset mechanism, waiting for the next vacuum forming operation.

[0025] The aforementioned mechanism enables rapid demolding of the thermoformed product 910, improving the efficiency of thermoforming operations.

[0026] Specifically, because the rotating part 200 can automatically rotate and avoid the material when the vacuum-formed product 910 is removed upwards, the depth of the concave structure 911 (such as an inverted structure) is not limited by the material. In practical applications, it can meet the vacuum forming of inverted structures with a depth greater than 2mm, and like traditional processes (such as shallow inverted structures), the product can be forcibly demolded upwards, ensuring the efficiency of the vacuum forming operation. Figures 3 to 7 As shown, in some embodiments of this utility model, the concave structure 911 is an inverted structure that protrudes into the inner cavity of the thermoformed product 910. When the rotating member 200 is in the first position, the forming part 210 extends into the concave structure 911.

[0027] Specifically, the undercut structure needs to reach a greater depth to achieve good stability. By extending the forming part 210 into the forming cavity of the vacuum forming mold 900 and cooperating with the vacuum forming mold 900, the forming requirements of the undercut structure can be met. The vacuum-formed product 910 can be directly removed upwards, and the forming part 210 can be demolded at the same time, thereby improving the efficiency of vacuum forming of vacuum-formed products with undercut structures.

[0028] In some embodiments of this utility model, the demolding mechanism can accommodate an inverted structure with a depth of 3-4mm, forcibly demolding upwards without damaging the thermoformed product 910.

[0029] It is understood that, in some embodiments of this utility model, the concave structure 911 may also be a gripper groove or the like formed by the concave surface of the outer surface of the thermoformed product 910.

[0030] In some embodiments of this utility model, the demolding mechanism further includes a limiting structure, which can cooperate with the reset mechanism to position the rotating member 200 to a first position, so as to maintain the stability of the rotating member 200 in the first position and improve the thermoforming efficiency.

[0031] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, the rotating member 200 is provided with a driving part 220. The rotating member 200 is rotatably mounted to the mounting base 100 via a rotating shaft 230. The driving part 220 and the forming part 210 are distributed opposite to each other on both sides of the rotating shaft 230. The limiting structure includes a limiting part 110 provided in the mounting base 100 and corresponding to the driving part 220. The reset mechanism can generate an upward elastic force on the driving part 220 and drive the driving part 220 to press against the limiting part 110 to position the rotating member 200 to a first position, thereby improving the stability of the rotating member 200 in the first position.

[0032] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, the limiting part 110 is provided with a first limiting surface 111, and the upper part of the driving part 220 is provided with a second limiting surface 221. When the rotating member 200 is in the first position, the second limiting surface 221 and the first limiting surface 111 abut against each other, thereby improving stability through surface contact.

[0033] In some embodiments of this utility model, the second limiting surface 221 and the first limiting surface 111 are corresponding inclined surfaces, which have a better contact and separation effect. Of course, in the specific implementation process, the second limiting surface 221 and the first limiting surface 111 are a combination of matching concave and convex surfaces.

[0034] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, a cavity for mounting a rotating member 200 is provided in the middle of the upper end of the mounting base 100. The rotating member 200 is connected to the two side walls of the cavity through a rotating shaft 230. The forming part 210 extends forward relative to the rotating shaft 230, and the driving part 220 extends backward relative to the rotating shaft 230. The limiting part 110 is located above the rear side of the cavity and is located on the path of the driving part 220 rotating upward, thereby limiting the upward rotation of the driving part 220. The first limiting surface 111 extends obliquely upward from back to front, and the second limiting surface 221 extends obliquely downward from front to back, so that the first limiting surface 111 matches the second limiting surface 221, and the structure is simple and reliable.

[0035] It is understood that in some embodiments of this utility model, the limiting structure may also be a protrusion structure provided on the downward rotation path of the molding part 210, and the reset mechanism can apply downward elasticity to the molding part 210. In this way, the limiting structure can also cooperate with the reset mechanism to stably position the rotating part 200 in the first position.

[0036] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, the reset mechanism is a spring-loaded mechanism, which includes a base 310, a movable pin 320, and a spring 330. The base 310 is installed on the mounting base 100. The base 310 is provided with a guide hole 311 for the movable pin 320 to be inserted and slid. The spring 330 is provided in the guide hole 311, and one end of the spring 330 presses against the movable pin 320, while the other end presses against the bottom of the guide hole 311, so as to generate an upward elastic force on the movable pin 320, so that the upper end of the movable pin 320 elastically presses against the rotating member 200, thereby realizing the reset of the rotating member 200.

[0037] Specifically, the upper end of the movable pin 320 is elastically pressed against the lower end of the drive unit 220.

[0038] like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, the rotating member 200 is provided with a driving part 220. The rotating member 200 is rotatably mounted to the mounting base 100 via a rotating shaft 230. The driving part 220 and the forming part 210 are distributed on opposite sides of the rotating shaft 230. The lower part of the driving part 220 is provided with a pressing surface 222, and the upper end of the movable pin 320 presses against the pressing surface 222.

[0039] like Figure 3 As shown, in some embodiments of this utility model, the top pressing surface 222 is an inclined surface, and the top pressing surface 222 extends obliquely upward in a direction away from the rotating shaft 230. Through the top pressing surface 222 with the inclined structure, the torque of the reset mechanism acting on the rotating member 200 changes, reducing the resistance of the driving part 220 moving downward (the resistance of the rotating member 200 changing from the first position to the second position), reducing the resistance of the blister product 910 demolding, and making it less likely to damage the blister product 910.

[0040] Specifically, such as Figure 3As shown, when the rotating component 200 is in the first position, the upper end of the movable pin 320 presses against the top pressing surface 222 near the rotating shaft 230, resulting in a small torque. The vacuum-formed product 910 can easily pull the rotating component 200 to rotate clockwise when demolding upwards until the rotating component 200 rotates to the second position. The vacuum-formed product 910 is then successfully demolded with little resistance, effectively protecting the vacuum-formed product 910 from damage. When the rotating component 200 rotates to the second position, the upper end of the movable pin 320 presses against the top pressing surface 222 away from the rotating shaft 230, resulting in a larger torque, which facilitates the automatic reset of the rotating component 200. like Figure 2 , Figure 3 As shown, in some embodiments of this utility model, the upper end of the movable pin 320 is a spherical structure to reduce the resistance when the upper end of the movable pin 320 slides relative to the top pressing surface 222.

[0041] It is understood that in some embodiments of this utility model, the reset mechanism may also be a torsion spring, which is sleeved on the rotating shaft 230, and the two torsion arms respectively abut against the mounting base 100 and the rotating member 200, and can also generate an elastic reset force on the rotating member 200.

[0042] Reference Figures 4 to 7 According to the second aspect of the present invention, the vacuum forming mold includes the demolding mechanism of any of the first aspects of the present invention, which enables rapid demolding of the vacuum-formed product 910 and improves the efficiency of vacuum forming operations.

[0043] in, Figure 6 This is a partial cross-sectional view of the rotating part 200 when it is in the first position. The forming part 210 protrudes from the forming cavity wall of the vacuum forming mold 900. The forming part 210 cooperates with the forming cavity wall of the vacuum forming mold 900, which can form a concave structure 911 on the outer surface of the vacuum-formed product 910 during vacuum forming, thereby realizing the forming of the concave structure 911.

[0044] like Figure 7 As shown, when the thermoformed product 910 is taken out upward, the concave structure 911 drives the forming part 210, causing the rotating part 200 to rotate to the second position, forming a clearance structure that allows the thermoformed product 910 to move upward away from the thermoforming mold 900, making way for the thermoformed product 910 to move upward, so that the thermoformed product 910 can be demolded quickly. When the thermoformed product 910 moves upward to a position where it does not contact the rotating part 200, the rotating part 200 can be reset to the first position by the reset mechanism, waiting for the next thermoforming operation.

[0045] Of course, this invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A demolding mechanism, characterized in that, include: Mounting base (100); A rotating component (200) is rotatably disposed on the mounting base (100). The rotating component (200) is provided with a forming part (210). The rotating component (200) can rotate to a first position and a second position. A reset mechanism is provided on the mounting base (100), and the reset mechanism is capable of resetting the rotating member (200) to the first position; When the rotating member (200) rotates to the first position, the forming part (210) protrudes from the forming cavity wall of the vacuum forming mold (900) to form a concave structure (911) on the outer surface of the vacuum forming product (910). When the vacuum forming product (910) is demolded upward, the rotating member (200) can be driven to rotate to the second position through the concave structure (911) and the forming part (210), so that the vacuum forming product (910) can be detached from the vacuum forming mold (900) from bottom to top.

2. The demolding mechanism according to claim 1, characterized in that, The demolding mechanism also includes a limiting structure, which can cooperate with the reset mechanism to position the rotating part (200) to the first position.

3. The demolding mechanism according to claim 2, characterized in that, The rotating member (200) is provided with a driving part (220). The rotating member (200) is rotatably mounted to the mounting base (100) via a rotating shaft (230). The driving part (220) and the forming part (210) are distributed opposite to each other on both sides of the rotating shaft (230). The limiting structure includes a limiting part (110) provided on the mounting base (100) and corresponding to the driving part (220). The reset mechanism can generate an upward elastic force on the driving part (220) and drive the driving part (220) to press against the limiting part (110) to position the rotating member (200) at the first position.

4. The demolding mechanism according to claim 3, characterized in that, The limiting part (110) is provided with a first limiting surface (111), and the upper part of the driving part (220) is provided with a second limiting surface (221). When the rotating member (200) is in the first position, the second limiting surface (221) abuts against the first limiting surface (111).

5. The demolding mechanism according to claim 4, characterized in that, The second limiting surface (221) and the first limiting surface (111) are corresponding inclined surfaces.

6. The demolding mechanism according to claim 1, characterized in that, The reset mechanism is a spring-loaded mechanism, which includes a base (310), a movable pin (320), and a spring (330). The base (310) is installed on the mounting base (100). The base (310) is provided with a guide hole (311) into which the movable pin (320) can be inserted and slid. The spring (330) is located in the guide hole (311), with one end of the spring (330) pressing against the movable pin (320) and the other end pressing against the bottom of the guide hole (311). The upper end of the movable pin (320) presses against the rotating member (200).

7. The demolding mechanism according to claim 6, characterized in that, The rotating component (200) is provided with a driving part (220). The rotating component (200) is rotatably mounted to the mounting base (100) via a rotating shaft (230). The driving part (220) and the forming part (210) are distributed opposite to each other on both sides of the rotating shaft (230). The lower part of the driving part (220) is provided with a pressing surface (222). The upper end of the movable pin (320) presses against the pressing surface (222).

8. The demolding mechanism according to claim 7, characterized in that, The top pressure surface (222) is an inclined surface, and the top pressure surface (222) extends obliquely upward in a direction away from the rotating shaft (230).

9. The demolding mechanism according to claim 6, 7, or 8, characterized in that, The upper end of the movable pin (320) has a spherical structure.

10. A vacuum forming mold, characterized in that, include: The demolding mechanism as described in any one of claims 1 to 9.

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