Demoulding device of thick sheet plastic uptake mould

Abstract

The utility model discloses a demoulding device of a thick sheet plastic uptake mould, which comprises a mould core main body, a base, two separating slide blocks, an air cylinder and a transmission mechanism, the mould core main body is arranged on the base, the mould core main body is hollow, two slots are arranged on the side wall of the mould core main body, the two separating slide blocks are respectively inserted in the two slots, the air cylinder is arranged in the mould core main body, and the transmission mechanism is arranged on the base. The air cylinder can drive the end of the separation sliding block to stretch out or retract from the outer surface of the side wall of the mold core body through the transmission mechanism. The demolding device of the thick sheet plastic suction mold is simple in structure and low in cost, plastic products with special shapes can be manufactured, and the surface smoothness of the plastic products can meet the manufacturing requirement.

Description

Technical Field

[0001] The utility model relates to the field of plastic suction moulds, in particular to a demoulding device for thick-sheet plastic suction moulds. Background Art

[0002] Blister molds are widely used in the manufacture of plastic packaging, daily necessities, product shells and other fields. They can be used to produce various plastic products such as shells, trays, blister boxes, etc.

[0003] Some plastic products have special shapes. For example, the side wall of a plastic product has an undercut groove protruding from the outer side wall. It is very difficult to use the existing blister mold to form the plastic product through one-time demoulding during the vacuum forming process. If injection molds are used, not only is the mold cost high, but the quality of the plastic product, such as surface smoothness, cannot meet the requirements. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings of the prior art and provide a demoulding device for a thick sheet plastic blister mold.

[0005] According to one aspect of the utility model, a demoulding device for a thick sheet blister mold is provided, comprising a mold core body and a base, wherein the mold core body is arranged on the base, and further comprising:

[0006] Two separation sliders, the mold core body is hollow inside, and two slots are arranged on the side wall of the mold core body, and the two separation sliders are respectively inserted into the two slots;

[0007] A cylinder disposed in the core body; and

[0008] The transmission mechanism, through which the cylinder can drive the end of the separation slider to extend or retract from the outer surface of the side wall of the core body, comprises a first transmission rod, a second transmission rod, a third transmission rod and a fourth transmission rod.

[0009] One end of the first transmission rod is hinged to the first end of a separation slider, and the other end of the first transmission rod is hinged to the first end of the cylinder. One end of the third transmission rod is hinged to the second end of the separation slider, and the other end of the third transmission rod is hinged to the second end of the cylinder.

[0010] One end of the second transmission rod is hinged to the first end of another separation slider, and the other end of the second transmission rod is hinged to the first end of the cylinder. One end of the fourth transmission rod is hinged to the second end of the separation slider, and the other end of the fourth transmission rod is hinged to the second end of the cylinder.

[0011] The demoulding device of the thick sheet blister mold of the utility model is as follows: before blister molding, the first end (piston rod) of the cylinder performs an extending action, and the first end of the cylinder pushes the end of the first transmission rod and the end of the second transmission rod so that the first transmission rod and the second transmission rod are transformed from a V-shaped arrangement to a straight-line arrangement, the first transmission rod pushes the first end of a separation slider to move in the slot and extend from the outer surface of the side wall of the mold core body, the second transmission rod pushes the first end of another separation slider to move in the slot and extend from the outer surface of the side wall of the mold core body, and at the same time, the second end of the cylinder also pushes the end of the third transmission rod and the end of the fourth transmission rod so that the third transmission rod and the fourth transmission rod are transformed from a V-shaped arrangement to a straight-line arrangement, and the third transmission rod pushes the first end of a separation slider The two ends move in the slot and extend from the outer surface of the side wall of the core body, and the fourth transmission rod will push the second end of the other separation slider to move in the slot and extend from the outer surface of the side wall of the core body. In this way, when the first end of the cylinder extends, a separation slider is smoothly extended from the outer surface of the side wall of the core body under the joint action of the first transmission rod and the third transmission rod, and the other separation slider is smoothly extended from the outer surface of the side wall of the core body under the joint action of the second transmission rod and the fourth transmission rod. The two separation sliders extending from the outer surface of the side wall of the core body provide support for the molding of the undercut groove on the plastic product. The heated and softened thick sheet is attached to the core body and vacuum adsorbed. After cooling and molding, the two separation sliders extending from the outer surface of the side wall of the core body are The separation slider can form undercut grooves on both side walls of the plastic product to produce plastic products of corresponding shapes. When demoulding is required, the first end (piston rod) of the cylinder retracts, and the first end of the cylinder pulls the end of the first transmission rod and the end of the second transmission rod to transform the first transmission rod and the second transmission rod from a straight line arrangement to a V-shaped arrangement. The first transmission rod pulls the first end of a separation slider to move in the slot and retract from the outer surface of the side wall of the core body, and the second transmission rod pulls the first end of another separation slider to move in the slot and retract from the outer surface of the side wall of the core body. At the same time, the second end of the cylinder also pulls the end of the third transmission rod and the end of the fourth transmission rod to transform the third transmission rod and the fourth transmission rod from a straight line arrangement to a V-shaped arrangement. The third transmission rod will pull the second end of a separation slider to move in the slot and retract from the outer surface of the side wall of the core body, and the fourth transmission rod will pull the second end of another separation slider to move in the slot and retract from the outer surface of the side wall of the core body. In this way, when the first end of the cylinder retracts, a separation slider is smoothly retracted from the outer surface of the side wall of the core body under the joint action of the first transmission rod and the third transmission rod, and the other separation slider is smoothly retracted from the outer surface of the side wall of the core body under the joint action of the second transmission rod and the fourth transmission rod. At this time, the plastic product with the undercut groove can be smoothly separated from the core body. The demoulding device of the utility model has a simple structure and low cost, and can be used to produce plastic products with special shapes.And the surface smoothness of plastic products can also meet the production requirements.

[0012] Furthermore, the two slots are respectively located on two opposite side walls of the mold core body.

[0013] Therefore, the two separation slide blocks extending from the outer surfaces of the two opposite side walls of the mold core body can form undercut grooves on the two opposite side walls of the plastic product to produce a plastic product of a corresponding shape.

[0014] Furthermore, it also includes a first hinge column and a second hinge column,

[0015] The other end of the first transmission rod, the other end of the second transmission rod, and the first end of the cylinder are all sleeved on the first hinge column and are rotatably connected to the first hinge column.

[0016] The other end of the third transmission rod, the other end of the fourth transmission rod and the second end of the cylinder are all sleeved on the second hinge column and are rotatably connected to the second hinge column.

[0017] Therefore, when the first end of the cylinder retracts, the presence of the first hinged column can realize the transformation of the first transmission rod and the second transmission rod from a straight line arrangement to a V-shaped arrangement, and the first transmission rod, the second transmission rod, and the first end of the cylinder are transformed from a T-shaped arrangement to a Y-shaped arrangement. The presence of the second hinged column can realize the transformation of the third transmission rod and the fourth transmission rod from a straight line arrangement to a V-shaped arrangement, and the third transmission rod, the fourth transmission rod, and the second end of the cylinder are transformed from a T-shaped arrangement to a Y-shaped arrangement; when the first end of the cylinder extends, the presence of the first hinged column can realize the transformation of the first transmission rod and the second transmission rod from a V-shaped arrangement to a straight line arrangement, and the first transmission rod, the second transmission rod, and the first end of the cylinder are transformed from a Y-shaped arrangement to a T-shaped arrangement. The presence of the second hinged column can realize the transformation of the third transmission rod and the fourth transmission rod from a V-shaped arrangement to a straight line arrangement, and the third transmission rod, the fourth transmission rod, and the second end of the cylinder are transformed from a Y-shaped arrangement to a T-shaped arrangement.

[0018] Furthermore, a first slide groove is provided on the inner bottom of the mold core body, and a second slide groove is provided on the inner top of the mold core body.

[0019] One end of the first hinged column is accommodated in the first sliding groove, and the other end of the first hinged column is accommodated in the second sliding groove.

[0020] One end of the second hinged column is accommodated in the first sliding groove, and the other end of the second hinged column is accommodated in the second sliding groove.

[0021] Therefore, when the first end of the cylinder extends or retracts, the first hinge column can move back and forth smoothly along the first slide groove and the second slide groove, and the second hinge column can move back and forth smoothly along the first slide groove and the second slide groove, ensuring that the two separation sliders are smoothly extended or retracted from the outer surface of the side wall of the core body, and when one end of the first hinge column moves to the end of the first slide groove, the other end of the first hinge column moves to the end of the second slide groove, one end of the second hinge column moves to the end of the first slide groove, and the other end of the second hinge column moves to the end of the second slide groove, the two separation sliders are completely extended from the outer surface of the side wall of the core body. At this time, the length of the separation slider extending from the outer surface of the side wall of the core body just fits the depth of the undercut groove on the plastic product.

[0022] Furthermore, it also includes a limiting column, and a limiting groove is provided on the separation slide, and the length direction of the limiting groove is parallel to the moving direction of the separation slide.

[0023] The limiting column is inserted into the limiting groove, the bottom of the limiting column is arranged on the inner bottom of the mold core body, and the top of the limiting column is arranged on the inner top of the mold core body.

[0024] Therefore, the limiting column can limit the moving range of the separation slider to prevent the separation slider from escaping from the slot on the mold core body.

[0025] Furthermore, the number of the limiting grooves on the separation slider is three, the number of the limiting posts is six, and each limiting post is inserted in a limiting groove.

[0026] Therefore, each separation slider can be smoothly extended or retracted from the outer surface of the side wall of the mold core body under the action of the three limiting pillars.

[0027] Furthermore, the core body includes a cover body and a base plate, the cover body is arranged on the base plate, the cover body and the base plate are detachably connected, the base plate is arranged on the base, the slot is arranged on the side wall of the cover body, and the cylinder and the transmission mechanism are both located in a cavity enclosed by the cover body and the base plate.

[0028] Therefore, the detachable connection between the cover body and the base plate facilitates disassembly, assembly and maintenance of the components in the cover body.

[0029] Furthermore, a mounting groove is provided on the base, the side wall of the mounting groove is inclined, the side wall of the bottom plate is inclined to match the shape of the side wall of the mounting groove, and the bottom plate is accommodated in the mounting groove.

[0030] Therefore, the bottom plate is clamped in the installation groove on the base, and then the cover body is installed on the bottom plate. The overall installation is very simple.

[0031] Furthermore, it also includes a cover body, which is covered on the base to cover the bottom plate.

[0032] Therefore, the cover body can not only protect the bottom plate, but also make the lower surface of the base flat as a whole, so as to facilitate the stable fixation of the whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a demoulding device of a thick sheet blister mold of the utility model;

[0034] Figure 2 for Figure 1 The schematic diagram of the split structure of the demoulding device shown;

[0035] Figure 3 for Figure 1 A schematic diagram of the disassembled structure of the demoulding device shown in another perspective;

[0036] Figure 4 for Figure 1 The schematic diagram of the structure of the demoulding device after the base and the cover are hidden;

[0037] Figure 5 for Figure 2 A schematic structural diagram of the cover body from another perspective shown;

[0038] Figure 6 for Figure 4 The schematic diagram of the structure of the demoulding device shown is hidden behind the bottom plate;

[0039] Figure 7 for Figure 4 The schematic diagram of the structure of the demoulding device after hiding the cover body;

[0040] Figure 8 for Figure 1 The demoulding device is shown in the usage state diagram. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0042] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are 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, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, unless otherwise specified, "multiple" means two or more; it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements.

[0043] See also Figures 1 to 7 A demoulding device for a thick sheet blister mold includes a mold core body 1, a base 2, a separation slider 3, a cylinder 4, a transmission mechanism, a first hinge column 6, a second hinge column 7, a limit column 8 and a cover body 9.

[0044] See also Figure 1 The mold core body 1 is installed on the base 2, and the mold core body 1 is hollow. Figure 2 and Figure 4 The core body 1 includes a cover 101 and a bottom plate 102. The cover 101 is covered on the bottom plate 102. The cover 101 and the bottom plate 102 are detachably connected. Figure 5 The cover body 101 is in a concave shape, and the top of the cover body 101 is open. The top of the side wall of the cover body 101 can be installed with the bottom plate 102 by screws. The cover body 101 and the bottom plate 102 are detachably connected to facilitate the disassembly and maintenance of the components in the cover body 101.

[0045] See also Figure 2 and Figure 3 The base 2 is formed with a mounting groove 21, the side wall of the mounting groove 21 is inclined, the side wall of the bottom plate 102 is inclined to match the side wall shape of the mounting groove 21, and the bottom plate 102 is accommodated in the mounting groove 21. In this way, the bottom plate 102 is snapped into the mounting groove 21 on the base 2, and then the cover body 101 is installed on the bottom plate 102. When the bottom plate 102 and the cover body 101 are fixed together, the bottom plate 102 cannot be removed from the surface of the base 2 ( Figure 2The upper surface of the middle base 2) is disengaged to ensure that the cover body 101 and the bottom plate 102 are firmly installed on the base 2. The installation of the whole (base 2, bottom plate 102 and cover body 101) is very simple and very stable after installation.

[0046] See also Figure 3 The cover 9 is covered on the base 2 to cover the bottom plate 102. The cover 9 can protect the bottom plate 102 and make the lower surface of the base 2 ( Figure 2 The lower surface of the middle base 2 is flat as a whole, which facilitates the stable fixation of the whole. The cover body 9 and the base 2 can be connected by snap-fit ​​connection, threaded connection, etc., which is not limited here.

[0047] See also Figure 2 and Figure 5 , two slots 11 are formed on the side wall of the cover body 101 of the core body 1. In this embodiment, the two slots 11 are respectively located on two opposite side walls of the cover body 101. Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 There are two separation sliders 3, which are respectively inserted into two slots 11. The length of the separation slider 3 is slightly smaller than the length of the slot 11, and the thickness of the separation slider 3 is slightly smaller than the height of the slot 11 (the distance between the top wall and the bottom wall of the slot 11). The separation slider 3 can move in the slot 11.

[0048] The cylinder 4 is installed in the cavity enclosed by the cover 101 and the bottom plate 102. Figure 6 The cylinder 4 is installed in the cover body 101 of the core body 1, and the transmission mechanism is also installed in the cover body 101 of the core body 1. The cylinder 4 can drive the separation slider 3 to move back and forth through the transmission mechanism to make the end of the separation slider 3 extend from or retract from the outer surface of the side wall of the cover body 101.

[0049] See also Figure 2 , Figure 6 and Figure 7The transmission mechanism includes a first transmission rod 51, a second transmission rod 52, a third transmission rod 53 and a fourth transmission rod 54, one end of the first transmission rod 51 is hinged to the first end 301 of a separation slider 3, the other end of the first transmission rod 51 is hinged to the first end 41 of the cylinder 4, one end of the third transmission rod 53 is hinged to the second end 302 of the separation slider 3, the other end of the third transmission rod 53 is hinged to the second end 42 of the cylinder 4, one end of the second transmission rod 52 is hinged to the first end 301 of another separation slider 3, the other end of the second transmission rod 52 is hinged to the first end 41 of the cylinder 4, and one end of the fourth transmission rod 54 is hinged to the The first transmission rod 51, the second transmission rod 52, the third transmission rod 53 and the fourth transmission rod 54 are hinged on the second end 302 of the separation slider 3, and the other end of the fourth transmission rod 54 is hinged on the second end 42 of the cylinder 4; specifically, the first transmission rod 51, the second transmission rod 52, the third transmission rod 53 and the fourth transmission rod 54 are all U-shaped structures as a whole, and a connecting rod is integrally formed on the bottom wall of the U-shaped structure, one end of the first transmission rod 51 (the free end of the connecting rod) is hinged on the first end 301 of a separation slider 3, the other end of the first transmission rod 51 (the two oppositely arranged side walls of the U-shaped structure) is sleeved on the first hinge column 6 and rotatably connected to the first hinge column 6, and one end of the third transmission rod 53 (the free end of the connecting rod) is hinged on the first end 301 of the separation slider 3. On the second end 302 of the separation slider 3, the other end of the third transmission rod 53 (two oppositely arranged side walls of the U-shaped structure) is sleeved on the second hinge column 7 and is rotatably connected to the second hinge column 7, one end of the second transmission rod 52 (the free end of the connecting rod) is hinged on the first end 301 of the other separation slider 3, the other end of the second transmission rod 52 (two oppositely arranged side walls of the U-shaped structure) is sleeved on the first hinge column 6 and is rotatably connected to the first hinge column 6, one end of the fourth transmission rod 54 (the free end of the connecting rod) is hinged on the second end 302 of the separation slider 3, and the other end of the fourth transmission rod 54 (two oppositely arranged side walls of the U-shaped structure) is sleeved on the first hinge column 6 and is rotatably connected to the first hinge column 6. The first end 41 of the cylinder 4 is sleeved on the first hinge column 6 and is rotatably connected to the second hinge column 7. The second end 42 of the cylinder 4 is sleeved on the second hinge column 7 and is rotatably connected to the second hinge column 7. In this way, when the first end 41 (piston rod) of the cylinder 4 retracts, since the end of the first transmission rod 51, the end of the second transmission rod 52, and the first end 41 of the cylinder 4 are all hinged on the first hinge column 6, the first end 41 of the cylinder 4 will pull the end of the first transmission rod 51 and the end of the second transmission rod 52 so that the first transmission rod 51 and the second transmission rod 52 are arranged in a straight line ( Figure 6The state shown in the figure) is transformed into a V-shaped arrangement, the first transmission rod 51 will pull the first end 301 of a separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and retract from the outer surface of the side wall of the cover body 101, and the second transmission rod 52 will pull the first end 301 of another separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and retract from the outer surface of the side wall of the cover body 101. At the same time, since the end of the third transmission rod 53, the end of the fourth transmission rod 54, and the second end 42 of the cylinder 4 are all hinged on the second hinge column 7, the second end 42 of the cylinder 4 will also pull the end of the third transmission rod 53 and the end of the fourth transmission rod 54 so that the third transmission rod 53 and the fourth transmission rod 54 are arranged in a straight line ( Figure 6 The state shown in the figure) is transformed into a V-shaped arrangement, the third transmission rod 53 will pull the second end 302 of a separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and retract from the outer surface of the side wall of the cover body 101, and the fourth transmission rod 54 will pull the second end 302 of another separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and retract from the outer surface of the side wall of the cover body 101. In this way, when the first end 41 of the cylinder 4 retracts, a separation slider 3 is moved between the first transmission rod 51 and the third transmission rod 54. Under the joint action of the second transmission rod 52 and the fourth transmission rod 54, the other separation slider 3 is smoothly retracted from the outer surface of the side wall of the cover body 101. Then, when making the next plastic product, the first end 41 (piston rod) of the cylinder 4 extends, and the first end 41 of the cylinder 4 pushes the end of the first transmission rod 51 and the end of the second transmission rod 53 to transform the first transmission rod 51 and the second transmission rod 52 from the V-shaped arrangement to the straight line arrangement ( Figure 6 In the state shown in the figure, the first transmission rod 51 pushes the first end 301 of a separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and extend from the outer surface of the side wall of the cover body 101, and the second transmission rod 52 pushes the first end 301 of another separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and extend from the outer surface of the side wall of the cover body 101. At the same time, the second end 42 of the cylinder 4 also pushes the end of the third transmission rod 53 and the end of the fourth transmission rod 54 so that the third transmission rod 53 and the fourth transmission rod 54 are transformed from a V-shaped arrangement to a straight line arrangement ( Figure 6In the state shown in the figure, the third transmission rod 53 will push the second end 302 of a separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and extend from the outer surface of the side wall of the cover body 101, and the fourth transmission rod 54 will push the second end 302 of another separation slider 3 to move in the slot 11 on the side wall of the cover body 101 and extend from the outer surface of the side wall of the cover body 101. In this way, when the first end 41 of the cylinder 4 extends, one separation slider 3 is smoothly extended from the outer surface of the side wall of the cover body 101 under the joint action of the first transmission rod 51 and the third transmission rod 53, and the other separation slider 3 is smoothly extended from the outer surface of the side wall of the cover body 101 under the joint action of the second transmission rod 52 and the fourth transmission rod 54.

[0050] See also Figure 2 A first slide groove 12 is formed on the inner bottom of the bottom plate 102 of the core body 1, see Figure 5 A second slide groove 13 is formed on the inner top of the cover body 101 of the core body 1, see Figure 7 One end of the first hinge column 6 is accommodated in the first slide groove 12, and one end of the second hinge column 7 is accommodated in the first slide groove 12, see Figure 3 , the other end of the first hinge column 6 is accommodated in the second slide groove 13, and the other end of the second hinge column 7 is accommodated in the second slide groove 13. When the first end 41 of the cylinder 4 extends or retracts, the first hinge column 6 can smoothly reciprocate along the first slide groove 12 and the second slide groove 13, and the second hinge column 7 can smoothly reciprocate along the first slide groove 12 and the second slide groove 13, ensuring that the two separation sliders 3 are smoothly extended or retracted from the outer surface of the side wall of the cover body 101 of the core body 1, and when one end of the first hinge column 6 moves to the end of the first slide groove 12, the other end of the first hinge column 6 moves to the end of the second slide groove 13, one end of the second hinge column 7 moves to the end of the first slide groove 12, and the other end of the second hinge column 7 moves to the end of the second slide groove 13 ( Figure 7 The two separation slide blocks 3 are completely extended from the outer surface of the side wall of the cover body 101 of the core body 1 ( Figure 1 , Figure 4 , Figure 6 At this time, the length of the separation slider 3 extending from the outer surface of the side wall of the cover body 101 of the core body 1 is just adapted to the depth of the undercut groove on the plastic product.

[0051] See also Figure 2 and Figure 7A limiting groove 31 is formed on the separation slider 3, and the length direction of the limiting groove 31 is parallel to the moving direction of the separation slider 3. The limiting column 8 is inserted in the limiting groove 31, and the bottom of the limiting column 8 is inserted and fixed in the inner bottom of the bottom plate 102 of the core body 1, and the top of the limiting column 8 is inserted and fixed in the inner top of the cover body 101 of the core body 1. In this way, the limiting column 8 can limit the moving range of the separation slider 3 to prevent the separation slider 3 from escaping from the slot 11 on the cover body 101 of the core body 1.

[0052] See also Figure 7 In this embodiment, the number of the limiting grooves 31 on the separation slider 3 is three, and the number of the limiting posts 8 is six. Three limiting posts 8 are correspondingly installed in the three limiting grooves 31 on each separation slider 3, so that the two separation sliders 3 can be smoothly extended or retracted from the outer surface of the side wall of the cover body 101. In other embodiments, the number of the limiting grooves 31 on the separation slider 3 can be adaptively adjusted according to the length of the separation slider 3, so that one limiting post 8 is correspondingly installed in each limiting groove 31.

[0053] The shape of the end portion of the separation slider 3 extending from the outer surface of the side wall of the cover body 101 is adapted to the shape of the undercut groove on the plastic product.

[0054] See also Figures 1 to 7 The demoulding device of the thick sheet blister mold of the utility model, before blistering, two separation sliders 3 extend from the outer surface of the side wall of the cover body 101 of the mold core body 1 ( Figure 1 The two separating sliders 3 extending from the outer surface of the side wall of the cover 101 of the core body 1 provide support for the molding of the undercut groove on the plastic product. The heated and softened thick sheet is attached to the cover 101 of the core body 1 and then vacuum-adsorbed. After cooling and molding, refer to Figure 8 , the two separation sliders 3 extending from the outer surface of the side wall of the cover body 101 can form two undercut grooves 110 on the side wall of the plastic product 100. When demoulding is required, the first end 41 of the cylinder 4 retracts, and the two separation sliders 3 retract from the outer surface of the side wall of the cover body 101 respectively. At this time, the plastic product 100 with the undercut grooves 110 can be smoothly separated from the cover body 101 of the core body 1, and the limiting column 8 in the cover body 101 can limit the moving range of the separation slider 3 to prevent the separation slider 3 from escaping from the slot 11 on the cover body 101. After demoulding is completed, the first end 41 of the cylinder 4 extends, and the two separation sliders 3 extend from the outer surface of the side wall of the cover body 101 respectively, preparing for the molding of the next plastic product. The demoulding device of the utility model has a simple structure and low cost, can produce plastic products with special shapes, and the surface smoothness of the plastic products can also meet the production requirements.

[0055] The above are only some embodiments of the present invention, which are intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Those skilled in the art can make obvious improvements to the present invention in combination with existing common knowledge, which all fall within the protection scope of the present invention.

Claims

1. A demoulding device for a thick sheet blister mold, comprising a mold core body and a base, wherein the mold core body is arranged on the base, characterized in that: Also includes: Two separation sliders, the core body is hollow, and two slots are provided on the side wall of the core body, and the two separation sliders are respectively inserted into the two slots; a cylinder disposed in the core body; and The transmission mechanism is used to drive the end of the separation slider to extend or retract from the outer surface of the side wall of the mold core body through the transmission mechanism. The transmission mechanism includes a first transmission rod, a second transmission rod, a third transmission rod and a fourth transmission rod. One end of the first transmission rod is hinged to the first end of a separation slider, and the other end of the first transmission rod is hinged to the first end of the cylinder. One end of the third transmission rod is hinged to the second end of the separation slider, and the other end of the third transmission rod is hinged to the second end of the cylinder. One end of the second transmission rod is hinged to the first end of another separation slider, and the other end of the second transmission rod is hinged to the first end of the cylinder. One end of the fourth transmission rod is hinged to the second end of the separation slider, and the other end of the fourth transmission rod is hinged to the second end of the cylinder.

2. The demoulding device according to claim 1, characterized in that: The two slots are respectively located on two opposite side walls of the mold core body.

3. The demoulding device according to claim 1, characterized in that: Also includes a first hinge column and a second hinge column, The other end of the first transmission rod, the other end of the second transmission rod, and the first end of the cylinder are all sleeved on the first hinge column and are rotatably connected to the first hinge column. The other end of the third transmission rod, the other end of the fourth transmission rod, and the second end of the cylinder are all sleeved on the second hinge column and are rotatably connected to the second hinge column.

4. The demoulding device according to claim 3, characterized in that: The inner bottom of the core body is provided with a first slide groove, and the inner top of the core body is provided with a second slide groove. One end of the first hinged column is accommodated in the first sliding groove, and the other end of the first hinged column is accommodated in the second sliding groove. One end of the second hinged column is accommodated in the first sliding groove, and the other end of the second hinged column is accommodated in the second sliding groove.

5. The demoulding device according to any one of claims 1 to 4, characterized in that: It also includes a limiting column, and a limiting groove is provided on the separation slider, and the length direction of the limiting groove is parallel to the moving direction of the separation slider. The limiting column is inserted into the limiting groove, the bottom of the limiting column is arranged on the inner bottom of the mold core body, and the top of the limiting column is arranged on the inner top of the mold core body.

6. The demoulding device according to claim 5, characterized in that: The number of the limiting grooves on the separation sliding block is three, the number of the limiting posts is six, and each limiting post is inserted in a limiting groove.

7. The demoulding device according to claim 1, characterized in that: The core body comprises a cover body and a bottom plate, wherein the cover body is arranged on the bottom plate, the cover body and the bottom plate are detachably connected, the bottom plate is arranged on the base, the slot is arranged on the side wall of the cover body, and the cylinder and the transmission mechanism are both located in a cavity enclosed by the cover body and the bottom plate.

8. The demoulding device according to claim 7, characterized in that: The base is provided with a mounting groove, the side wall of the mounting groove is in an inclined shape, the side wall of the bottom plate is in an inclined shape adapted to the shape of the side wall of the mounting groove, and the bottom plate is accommodated in the mounting groove.

9. The demoulding device according to claim 8, characterized in that: The utility model also comprises a cover body, wherein the cover body is covered on the base to cover the bottom plate.

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