Plastic suction mold with demolding mechanism

Abstract

The demoulding mechanism comprises a fixed part, a movable part and a springback part, a groove is formed in the middle of the fixed part, through shaft holes are formed in the two ends of the groove of the fixed part in the horizontal direction, the fixed part is clamped in a corresponding fixed groove in the plastic uptake mould, and the top face of the fixed part is flush with the top face of the plastic uptake mould. A magnetic gasket matched with the bottom of the columnar groove of the plastic suction mold is arranged at the bottom of the fixed part; a movable module of the movable part is divided into a rotating short side and a clamping long end, and the gravity center of the movable module is located at the clamping long end; the novel demoulding mechanism is simple in structure, small and exquisite in size, convenient to install and maintain and wide in application range, demoulding elasticity of the demoulding mechanism can be adjusted, the novel demoulding mechanism adapts to different demoulding conditions, and the novel demoulding mechanism is suitable for various demoulding conditions. The mold can effectively adapt to various blow molding products, the demolding quality and efficiency are guaranteed, and cost reduction and efficiency improvement are achieved.

Description

Technical Field

[0001] The utility model provides a plastic - suction mold with a demolding mechanism, belonging to the field of plastic - suction molds. Background Art

[0002] At present, it is a common phenomenon that plastic - suction molds are equipped with demolding mechanisms. However, problems with demolding mechanisms also emerge in an endless stream. For example, the demolding mechanism cannot automatically reset, and manual reset is required during the production process. The structure of the demolding mechanism is complex, and the part cost and replacement cost are high. For example, in the invention patent with the application number 2015108424976, a sliding rebound block and a spring are arranged in the rebound cavity. The spring is suppressed for a long time, resulting in frequent replacement of the rebound mechanism. Due to its complex structure, often the entire part needs to be replaced because the spring fails, increasing the production cost. Content of the Utility Model

[0003] To solve the above - mentioned technical problems existing in the prior art, the utility model provides a plastic - suction mold with a demolding mechanism. The demolding mechanism has a simple structure and comprehensive functions, can adapt to products with different demolding models, and realizes cost reduction and efficiency improvement.

[0004] The technical features adopted are as follows:

[0005] A plastic - suction mold with a demolding mechanism includes a plastic - suction mold and a demolding mechanism. The demolding mechanism includes a fixed part, a movable part, and a rebound part. It is characterized in that,

[0006] The fixed part is in a long - strip columnar structure. There is a groove in the middle of the fixed part, and through - holes are horizontally arranged at both ends of the groove of the fixed part. The fixed part is clamped in the corresponding fixed groove in the plastic - suction mold. The top surface of the fixed part is flush with the top surface of the plastic - suction mold, and a magnetic gasket is arranged at the bottom of the fixed part to cooperate with the bottom of the columnar groove of the plastic - suction mold.

[0007] The movable part includes a rotating shaft and a movable module. The rotating shaft is fixed through the through - hole of the fixed part, and the movable module is movably fixed on the rotating shaft. The movable module is divided into a rotating short side and a clamping long end, and the center of gravity of the movable module is located at the clamping long end.

[0008] The rebound part includes a spring groove and a spring. The bottom of the spring groove has a fixing piece for adjusting the depth. The fixing piece is rotationally clamped with the spring. The distance that the spring extends out of the spring groove is greater than the distance between the horizontal state of the movable module and the concave surface of the groove. The spring and the spring groove are located below the horizontal plane of the movable module.

[0009] Preferably, the movable module is evenly divided into 2n equal - distance segments in the vertical direction, and adjacent vertical - direction equal - distance segments are connected by vertical transverse equal - distance segments.

[0010] Preferably, the minimum gravity of the movable module is greater than the friction force between the movable module and the rotating shaft.

[0011] Preferably, the spring is snap - connected to the movable module.

[0012] Preferably, the distance from the shaft hole to the concave surface is greater than the distance from any point on the short rotation side within 90 degrees of outward rotation to the shaft hole.

[0013] Preferably, the short rotation side of the movable module is within the short surface of the groove of the fixed part.

[0014] Preferably, the included angle between the side and the bottom of the short rotation side of the movable module is 120 - 135 degrees.

[0015] Preferably, the included - angle part of the short rotation side of the movable module is an arc, and the radius of the arc is between the distance from the center of the rotation shaft hole to the bottom of the movable module and the vertical distance of the concave surface.

[0016] Preferably, the movable modules are arranged singly or in multiple on the rotating shaft.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The structure of the present utility model is simple, the volume is small, the installation and maintenance are convenient, the applicable range is wide, it can meet both the free recovery and elastic recovery of the demoulding structure, and can adjust the demoulding elasticity of the demoulding mechanism to adapt to different demoulding situations, can effectively adapt to various blow - molded products, ensure the quality and efficiency of demoulding, and realize cost reduction and efficiency increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 It is an exploded schematic diagram of the demoulding mechanism of the present utility model.

[0021] Figure 3 It is a schematic diagram of the movable module of the present utility model.

[0022] Figure 4 It is another schematic diagram of the movable module of the present utility model.

[0023] Figure 5 It is a schematic structural diagram of the demoulding mechanism of the present utility model.

[0024] Illustration: 1, fixed part; 11, groove of the fixed part; 12, shaft hole of the fixed part; 21, rotating shaft; 22, movable module; 221, shaft hole of the movable module; 222, short rotation side; 223, long snap - fit end; 31, spring groove; 32, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the present utility model with specific embodiments, but the present utility model is not limited by the embodiments.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and "vertical", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] In addition, in the description of the present utility model, unless otherwise specified, the meanings of "multiple", "multiple groups", and "multiple pieces" are two or more.

[0029] The materials, instruments, and methods used in the following embodiments, unless otherwise specified, are conventional materials, instruments, and methods in the art, and can all be obtained through commercial channels.

[0030] Embodiment 1

[0031] Figure 1 It is a schematic structural diagram of a plastic suction mold with a demolding mechanism according to the present utility model. The present utility model includes a plastic suction mold and a demolding mechanism. The demolding mechanism includes a fixed part 1, a movable part 2, and a resilient part 3.

[0032] The fixed part 1 is a long strip columnar structure. There is a groove 11 in the middle of the fixed part. There are through shaft holes 12 in the horizontal direction at both ends of the groove of the fixed part. The fixed part is clamped in the corresponding fixed groove in the plastic suction mold. The top surface of the fixed part is flush with the top surface of the plastic suction mold. There is a magnetic gasket at the bottom of the fixed part that cooperates with the bottom of the columnar groove of the plastic suction mold to adjust the height of the fixed part so that the fixed part can be conveniently connected and disassembled and adjusted with the fixed groove of the plastic suction mold.

[0033] The movable part includes a rotating shaft 21 and a movable module 22. The rotating shaft is fixed through the shaft hole of the fixed part. There is a shaft hole 221 on the movable module, and the movable module is movably fixed on the rotating shaft through the shaft hole. The movable module is divided into a rotating short side 222 and a clamping long end 223. The center of gravity of the movable module is located at the clamping long end. The distance from the shaft hole to the concave surface of the fixed part is greater than the distance from any point on the rotating short side rotating outward within 90 degrees to the shaft hole. The 90-degree rotation range limit ensures that the center of gravity of the movable module is not on the rotating shaft, preventing excessive rotation from causing the movable module to fail to reset. Moreover, the rotating short side of the movable module is within the short surface of the groove of the fixed part, realizing that the unilateral rotation does not exceed the range of the groove of the fixed part. When necessary, reducing the rotating module can also achieve unilateral demolding. In addition, the minimum gravity of the movable module is greater than the friction force between the movable module and the rotating shaft. When the demolding mechanism works normally, the movable module will finally return to the horizontal state and can automatically return even when the spring is not installed. In addition, the included angle between the side and the bottom of the rotating short side of the movable module is 120 - 135 degrees, and the angle at the rotating short side of the movable module is arc-shaped. The arc radius is between the distance from the center of the shaft hole to the bottom of the movable module and the vertical distance of the concave surface. The arc-shaped angle makes the movable module stronger and more pressure-tolerant. In addition, the movable modules are arranged singly or in multiple on the rotating shaft.

[0034] The rebounding part includes a spring groove 31 and a spring 32. The bottom of the spring groove has a fixing piece for adjusting the depth. There is a rotating thread on the spring groove, and the fixing piece rotates through the rotating thread to adjust the depth. There is a hollow convex ring on the fixing piece, and the fixing piece is rotationally engaged with the spring through the hollow convex ring. By adjusting the depth of the fixing piece, the distance that the spring extends out of the spring groove is adjusted, so as to adjust the elastic force to adapt to the blow-molded products with different elastic force demolding requirements. The distance that the spring extends out of the spring groove is greater than the distance between the horizontal state of the movable module and the concave surface of the groove. The spring and the spring groove are located below the horizontal plane of the movable module. The cross-sectional area of the spring is between 60% - 100% of the horizontal bottom area of a single movable module. The area coverage exceeding 60% ensures that the spring and the ground of the movable module are in full contact and no steering deviation will occur. At the same time, the spring is engaged with the movable module. A hollow concave ring is arranged on the bottom surface of the movable module, and the spring penetrates through the hollow concave ring to connect with the movable module. The movable module is controlled by the tensile force of the spring to keep the movable module horizontal.

[0035] Embodiment 2

[0036] Figure 3 This is another structural schematic diagram of the movable module of the present utility model. The difference between Embodiment 2 and the embodiment is that it is evenly divided into 2n equal-distance segments in the vertical direction, and adjacent vertical equal-distance segments are connected by vertical horizontal equal-distance segments, so that one kind of movable module can realize the movable module, realize single use and combined use, optimize the structure, and facilitate the installation and production of single parts. Further, the movable module can also be evenly divided into 2n equal-distance segments (n≥1) in the vertical direction, and the horizontal protruding parts are equal, realizing the closing of the same module and controlling double-sided demolding at the same time.

[0037] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Anyone who is familiar with this technology can make various modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be defined by the claims.

Claims

1. A plastic suction mold with a demolding mechanism, comprising a plastic suction mold and a demolding mechanism. The demolding mechanism includes a fixed part (1), a movable part (2) and a spring-back part (3), and is characterized in that the fixed part is a long strip columnar structure. There is a groove (11) in the middle of the fixed part. There are through shaft holes (12) in the horizontal direction at both ends of the groove of the fixed part. The fixed part is clamped in a corresponding fixed groove in the plastic suction mold. The top surface of the fixed part is flush with the top surface of the plastic suction mold. There is a magnetic gasket at the bottom of the fixed part that cooperates with the bottom of the columnar groove of the plastic suction mold; the movable part includes a rotating shaft (21) and a movable module (22). The rotating shaft is fixed through the shaft hole of the fixed part. The movable module is movably fixed on the rotating shaft. The movable module is divided into a rotating short side (222) and a clamping long end (223). The center of gravity of the movable module is located at the clamping long end; the spring-back part includes a spring groove (31) and a spring (32). The bottom of the spring groove has a fixing piece for adjusting the depth. The fixing piece is rotationally clamped with the spring. The distance that the spring extends out of the spring groove is greater than the distance between the horizontal state of the movable module and the concave surface of the groove. The spring and the spring groove are located below the horizontal plane of the movable module.

2. The plastic suction mold with a demolding mechanism according to claim 1, wherein, The movable module is evenly divided into 2n equal-distance segments in the vertical direction. Adjacent equal-distance segments in the vertical direction are connected by vertical equal-distance segments.

3. The plastic suction mold with a demolding mechanism according to claim 2, wherein The minimum gravity of the movable module is greater than the friction force between the movable module and the rotating shaft.

4. The plastic suction mold with a demolding mechanism according to claim 3, characterized in that, The spring is clamped and connected with the movable module.

5. The blister mold with a demolding mechanism according to claim 4, characterized in that The distance from the shaft hole to the concave surface is greater than the distance from any point rotated outward within 90 degrees of the rotating short side to the shaft hole.

6. The blister mold with a demolding mechanism according to claim 5, characterized in that, The rotating short side of the movable module is within the short surface of the groove of the fixed part.

7. The blister mold with a demolding mechanism according to claim 6, wherein The included angle between the rotating short side and the bottom side of the movable module is 120 - 135 degrees.

8. The blister mold with a demolding mechanism according to claim 7, wherein, The included angle of the rotating short side of the movable module is an arc. The radius of the arc is between the distance from the center of the rotating shaft hole to the bottom side of the movable module and the vertical distance to the concave surface.

9. The plastic suction mold with a demolding mechanism according to claim 8, characterized in that, The movable modules are arranged singly or in multiple on the rotating shaft.

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