Demolding device and automatic demoulding equipment

Abstract

The present invention relates to the field of mold technology, and in particular, to a demoulding device and an automatic demoulding equipment. A demoulding device, comprising a frame and a demoulding assembly. The frame is used to install the mold. The demoulding assembly is movably connected to the frame, and the demoulding assembly comprises a first abutting portion and a second abutting portion for abutting against the mold, and in the mold opening direction of the mold, the height of the first abutting portion is higher than the height of the second abutting portion, and the demoulding assembly is used to move relative to the frame along the mold opening direction under the action of an external force to open the mold. The demoulding device has a simple structure, which can reduce the difficulty of operation and improve the demoulding efficiency, while improving the quality of demoulding and reducing damage to the mold.

Description

Technical Field

[0001] The present invention relates to the field of mold technology, in particular to a demoulding device and automatic demoulding equipment. Background Art

[0002] In the prior art, the production steps of a cylindrical air filter product are as follows:

[0003] Liquid polyurethane (PU) material A and material B are poured into the PU injection machine in a certain proportion for mixing; then the mixed liquid is injected into the PU mold. After a chemical reaction, the mixed liquid of material A and material B in the PU mold will become a PU elastic solid; then the two ends of the loose filter paper are locked and fixed to form a cylindrical air filter product.

[0004] This production method has the following problems in the process of demoulding the PU mold:

[0005] The operation steps are complicated and the demoulding efficiency is low; and the demoulding quality is low, which can easily damage the PU mold. Summary of the invention

[0006] The purpose of the present invention includes providing a demoulding device, which can reduce the difficulty of operation and improve the demoulding efficiency, while improving the quality of demoulding and reducing damage to the mold.

[0007] The purpose of the present invention also includes providing an automatic demolding device, which can reduce the operational difficulty of demolding, improve the efficiency and quality of demolding, reduce the cost of demolding, and reduce the damage to the mold during the demolding process.

[0008] The embodiments of the present invention can be implemented as follows:

[0009] An embodiment of the present invention provides a demoulding device, which includes a frame and a demoulding assembly;

[0010] The rack is used to install the mold;

[0011] The demoulding assembly is movably connected to the frame, and includes a first supporting portion and a second supporting portion for supporting the mold. In the mold opening direction of the mold, the height of the first supporting portion is higher than the height of the second supporting portion. The demoulding assembly is used to move relative to the frame along the mold opening direction under the action of external force to open the mold.

[0012] Since there is a certain height difference between the first abutting part and the second abutting part of the demoulding device, during demoulding, the contact position between the mold and the second abutting part can be deformed locally, and the deformation of the mold allows the external air to enter the mold, so that the pressure inside the mold is consistent with the outside, thereby reducing the demoulding resistance during the demoulding process, so that the demoulding action of the mold can be quickly completed when the external force driving the demoulding component remains unchanged. Therefore, the demoulding device can reduce the difficulty of demoulding operation, improve the efficiency and quality of demoulding, reduce the cost of demoulding, and reduce the damage to the mold during the demoulding process.

[0013] Optionally, the demoulding device further includes a connecting piece;

[0014] The demoulding assembly is movably connected to the frame through a connecting piece.

[0015] Optionally, the connecting member includes a positioning plate, a movable plate and a guide column;

[0016] The positioning plate is connected to the frame and together with the frame defines a movable space for the mold to open the mold;

[0017] The movable plate is used to install the demoulding component. The movable plate is movably connected with the positioning plate through a guide column. The guide column is used to guide the movable plate to move along the mold opening direction.

[0018] Optionally, the connecting member further includes a limiting member for limiting the movement of the movable plate in the mold opening direction.

[0019] Optionally, the limiting member is a limiting spring;

[0020] The limit spring is located between the movable plate and the positioning plate, and two ends of the limit spring are respectively in contact with the movable plate and the positioning plate, so that the movable plate has a tendency to move along the mold closing direction.

[0021] Optionally, the demolding device also includes a positioning assembly detachably disposed on the frame, the positioning assembly including a first positioning portion and a second positioning portion for abutting against the mold; in the opening direction of the mold, the height of the first positioning portion is higher than the height of the second positioning portion, and the positioning assembly is used to install the mold located on the frame.

[0022] Optionally, the demoulding device further comprises a power assembly, which is used to drive the demoulding assembly to move, so that the demoulding assembly has a first position and a second position relative to the frame;

[0023] When the demoulding assembly is in the first position, the demoulding assembly is used to cooperate with the mold in the mold closing state;

[0024] When the demoulding assembly is in the second position, the demoulding assembly is used to cooperate with the mold in the mold opening state.

[0025] Optionally, the power component is a cylinder.

[0026] An embodiment of the present invention further provides a demoulding device, comprising a frame, a positioning assembly and a demoulding assembly;

[0027] The positioning assembly is connected to the frame and is used to install the mold; the positioning assembly includes a first positioning portion and a second positioning portion used to abut against the mold; in the mold opening direction of the mold, the height of the first positioning portion is higher than the height of the second positioning portion;

[0028] The demoulding assembly is movably connected to the frame, and includes a first supporting portion and a second supporting portion for supporting the mold. In the mold opening direction of the mold, the height of the first supporting portion is higher than the height of the second supporting portion. The demoulding assembly can move relative to the frame along the mold opening direction under the action of external force to open the mold.

[0029] An embodiment of the present invention further provides an automatic demoulding device, comprising a conveying device, a sensing device and the above-mentioned demoulding device;

[0030] The conveying device is used to convey the mold to the frame of the demoulding device;

[0031] The sensing device is used to detect whether there is a mold on the rack.

[0032] The demoulding device and automatic demoulding equipment of the embodiments of the present invention have the following beneficial effects: when the demoulding device is demoulding the mold, the mold can be locally deformed and external air can enter the mold, thereby reducing the demoulding resistance during the demoulding process, so that the demoulding action of the mold can be quickly completed when the external force driving the demoulding component remains unchanged. Thus, the demoulding device can reduce the difficulty of demoulding, improve the efficiency and quality of demoulding, reduce the cost of demoulding, and reduce the damage to the mold during the demoulding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a schematic diagram of assembling the mold in the demoulding device in an embodiment of the present invention;

[0035] Figure 2 It is a schematic structural diagram of a demoulding device in an embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the demoulding component and the positioning component in an embodiment of the present invention;

[0037] Figure 4 It is a schematic structural diagram of the automatic demoulding equipment in an embodiment of the present invention.

[0038] Icons: 100-mold; 200-demolding device; 210-frame; 220-demolding assembly; 221-first abutting portion; 222-second abutting portion; 230-connecting piece; 231-positioning plate; 232-movable plate; 233-guide column; 234-limiting piece; 240-positioning assembly; 241-first positioning portion; 242-second positioning portion; 250-power assembly; 300-automatic demoulding equipment; 310-conveying device; 320-sensing device. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0043] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0044] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0045] Please refer to Figure 1 and Figure 2 , Figure 1 Schematic diagram of the assembly of the mold in the demoulding device in an embodiment of the present invention, Figure 2 It is a schematic diagram of the structure of the demoulding device in an embodiment of the present invention; this embodiment provides a demoulding device 200, which can improve the demoulding efficiency and ensure the demoulding quality, and includes a frame 210 and a demoulding assembly 220.

[0046] It should be noted that the demoulding device 200 includes but is not limited to the demoulding application of the PU mold 100.

[0047] For details, please refer to Figure 1-Figure 3 , Figure 3 It is a structural schematic diagram of a demoulding assembly and a positioning assembly in an embodiment of the present invention; the frame 210 of the demoulding device 200 is used to install the mold 100; and the demoulding assembly 220 is movably connected to the frame 210, and the demoulding assembly 220 includes a first abutting portion 221 and a second abutting portion 222 for abutting against the mold 100, and in the mold opening direction of the mold 100, the height of the first abutting portion 221 is higher than the height of the second abutting portion 222, and the demoulding assembly 220 is used to move relative to the frame 210 along the mold opening direction of the mold 100 under the action of external force to open the mold 100.

[0048] It should be noted that the mold 100 mounted on the frame 210 is in a state to be molded. In addition, the mold 100 includes two opposite ends, which may be an open end and a closed end. During the demoulding process, the principle is to achieve the demoulding effect by fixing one end and driving the other end to move relative to the fixed end. Therefore, when installing the mold 100, its open end or closed end needs to be fixed relative to the mounting frame, and the other end needs to be against the demoulding assembly 220.

[0049] According to a demoulding device 200 provided in this embodiment, the working principle of the demoulding device 200 is:

[0050] As can be seen from the above content, in order to complete the demoulding of the mold 100, the demoulding device 200 includes a frame 210 and a demoulding assembly 220, and the two ends of the mold 100 are respectively connected to the frame 210 and the demoulding assembly 220, and then the demoulding assembly 220 is driven to move relative to the frame 210 along the mold opening direction under the action of external force to complete the demoulding of the mold 100. However, during the demoulding process, since the inside of the mold 100 is negative pressure after the colloid is formed, under the negative pressure condition, the inside has a certain adsorption force, which leads to an increase in the resistance of the demoulding assembly 220 to move along the demoulding direction during the demoulding process.

[0051] Based on this, in order to improve the demoulding efficiency of the mold 100 and avoid damage to the mold 100 due to excessive external force during the demoulding process, when setting the demoulding component 220 for abutting against the mold 100 to drive the mold 100 to move along the mold opening direction, the height of the first abutting portion 221 can be set to be higher than the height of the second abutting portion 222 in the mold opening direction of the mold 100. Through such a setting, during the demoulding process, since there is a certain height difference H1 between the first abutting portion 221 and the second abutting portion 222 of the demoulding component 220, the time when the first abutting portion 221 and the second abutting portion 222 contact the mold 100 is inconsistent. Therefore, in the process of the demolding component 220 driving the mold 100 to move along the mold opening direction, since the height of the first abutting portion 221 is greater than the height of the second abutting portion 222, that is, the second abutting portion 222 is relatively close to the mold 100, during demolding, as the demolding component 220 moves, the second abutting portion 222 can contact the mold 100 before the first abutting portion 221, so that local stress is formed at the contact portion of the mold 100 and the second abutting portion 222. At this time, the force between the demolding component 220 and the mold 100 is uneven and asymmetric, which leads to local deformation at the contact position between the mold 100 and the second abutting portion 222. After the deformation, external air can enter the molding cavity of the mold 100, and the pressure inside the mold 100 is consistent with the outside, thereby reducing the demolding resistance during the demolding process. Subsequently, after the first abutting portion 221 contacts the mold 100, the demolding action of the mold 100 can be quickly completed without changing the external force driving the demolding component 220 to move.

[0052] The demoulding device 200 provided in this embodiment has at least the following advantages:

[0053] Based on the above content, it can be seen that the demoulding device 200 can reduce the demoulding steps and the demoulding operation difficulty under the premise of reducing the overall structure of the device, thereby improving the demoulding efficiency. In addition, during the demoulding process, it can improve the demoulding quality while preventing the mold 100 from being damaged, thereby extending the service life of the mold 100 and reducing the use cost of the mold 100.

[0054] For further information, please refer to Figure 1 and Figure 2 In this embodiment, in order to make the demoulding assembly 220 movably connected to the frame 210, so that the demoulding assembly 220 can move relative to the frame 210 along the mold opening direction under the action of external force and complete the demoulding of the mold 100, the demoulding device 200 also includes a connecting member 230. When the connecting member 230 is provided, the connecting member 230 may include a positioning plate 231, a movable plate 232 and a guide column 233.

[0055] Among them, the positioning plate 231 is connected to the frame 210, and together with the frame 210, it defines the activity space for the mold 100 to open the mold. Therefore, when setting the positioning plate 231, it is necessary to make the positioning plate 231 and the frame 210 for installing the mold 100 separated by a certain distance, and the distance is greater than the maximum height of the mold 100 in its opening direction.

[0056] The movable plate 232 is used to install the demoulding assembly 220 . The movable plate 232 is movably connected to the positioning plate 231 via a guide column 233 . The guide column 233 is used to guide the movable plate 232 to move along the mold opening direction.

[0057] For further information, please refer to Figure 3 In order to improve the demoulding efficiency of the demoulding device 200, when the connecting member 230 is set, the demoulding assembly 220 can be automatically reset after the mold 100 is opened. Therefore, the connecting member 230 also includes a limit member 234 for limiting the movement of the movable plate 232 in the mold opening direction.

[0058] When setting the limit member 234, the limit member 234 is a limit spring, and the limit spring is located between the movable plate 232 and the positioning plate 231, and the two ends of the limit spring are respectively abutted against the movable plate 232 and the positioning plate 231, so that the movable plate 232 has a tendency to move along the mold closing direction, so that after the mold 100 is opened, the movable plate 232 can automatically return to the position cooperating with the mold 100 in the mold closing state on the frame 210 after the external force disappears.

[0059] For further information, please refer to Figure 1-Figure 3On the basis of being provided with the demoulding assembly 220, the demoulding device 200 may further include a positioning assembly 240 detachably provided on the frame 210. The positioning assembly 240 includes a first positioning portion 241 and a second positioning portion 242 for abutting against the mold 100; in the mold opening direction of the mold 100, the height of the first positioning portion 241 is higher than the height of the second positioning portion 242, and the positioning assembly 240 is used to install the mold 100 located on the frame 210. It should be noted that when the first positioning portion 241 and the second positioning portion 242 of the positioning assembly 240 are provided, the working principle of the height difference H2 therebetween and the technical effect that can be achieved are consistent with the working principle of the height difference H1 between the first abutting portion 221 and the second abutting portion 222 in the demoulding assembly 220 and the technical effect that can be achieved, so they will not be repeated here.

[0060] For further information, please refer to Figure 1 and Figure 2 In order to improve the demoulding efficiency of the demoulding device 200, the demoulding device 200 further includes a power assembly 250, which can be a cylinder. The power assembly 250 is used to drive the demoulding assembly 220 to move, so that the demoulding assembly 220 has a first position and a second position relative to the frame 210.

[0061] It should be noted that when the power assembly 250 is provided, the power assembly 250 can be provided on the positioning plate 231 and be transmission-connected to the movable plate 232 so as to drive the demolding assembly 220 installed on the movable plate 232 to move when the movable plate 232 is driven to move.

[0062] Among them, when the demolding assembly 220 is in the first position, the demolding assembly 220 can be used to cooperate with the mold 100 in the closed mold state, that is, the demolding assembly 220 located in the first position can cooperate with the mold 100 in the closed mold state, so that the mold 100 cooperates with the demolding assembly 220 and the positioning assembly 240 at both ends of the mold opening direction respectively.

[0063] When the demolding assembly 220 is in the second position, the demolding assembly 220 is used to cooperate with the mold 100 in the mold opening state. It should be noted that the first abutting portion 221 and the second abutting portion 222 of the demolding assembly 220 in this position can cooperate with the mold 100 in the mold opening state, and the purpose is to enable the demolding assembly 220 to drive the mold 100 from the mold closing state to the mold opening state during the movement from the first position to the second position, that is, to complete the mold opening action of the mold 100. It should be noted that, as can be seen from the above content, in this embodiment, the connecting member 230 includes a limit spring, and the limit spring can make the demolding assembly 220 in the second position have a tendency to move to the first position, so as to improve the reset efficiency of the demolding assembly 220.

[0064] Further, it should be noted that when setting the demoulding assembly 220 and the positioning assembly 240 of the demoulding device 200, in order to enable the demoulding assembly 220 and the positioning assembly 240 to cooperate with the mold 100 to be opened, the interval between the first abutting portion 221 and the second abutting portion 222, and the interval between the first positioning portion 241 and the second positioning portion 242 need to be adapted to the size of the mold 100. Similarly, in order to enable the demoulding device 200 to be used for demoulding molds 100 of different sizes, the application range of the demoulding device 200 can also be expanded by adjusting the interval between the first abutting portion 221 and the second abutting portion 222 on the movable portion, and the interval between the first positioning portion 241 and the second positioning portion 242 on the frame 210.

[0065] Please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the automatic demoulding device in an embodiment of the present invention; based on the above-mentioned demoulding device 200, this embodiment also provides an automatic demoulding device 300, including a conveying device 310, a sensing device 320 and the above-mentioned demoulding device 200.

[0066] The conveying device 310 of the automatic demoulding device 300 is used to convey the mold 100 to the frame 210 of the demoulding device 200, and the sensing device 320 is used to detect whether there is a mold 100 on the frame 210. Therefore, the automatic demoulding device 300 can convey the mold 100 in the mold-closing state to the demoulding device 200 through the conveying device 310, and when the sensing device 320 finds that the mold 100 is installed on the frame 210, it controls the power assembly 250 of the demoulding device 200 to move, so as to drive the demoulding assembly 220 to move.

[0067] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A demoulding device, Features: The demoulding device comprises a frame (210) and a demoulding component (220); The frame (210) is used to install the mold (100); The demoulding component (220) is movably connected to the frame (210), the demoulding component (220) comprises a first abutting portion (221) and a second abutting portion (222) for abutting against the mold (100), and in the mold opening direction of the mold (100), the height of the first abutting portion (221) is higher than the height of the second abutting portion (222), and the demoulding component (220) is used to move relative to the frame (210) along the mold opening direction of the mold (100) under the action of an external force, so as to open the mold (100); The demoulding device also includes a connecting piece (230); The demoulding assembly (220) is movably connected to the frame (210) via the connecting member (230); The demoulding device further comprises a positioning assembly (240) detachably arranged on the frame (210), the positioning assembly (240) comprising a first positioning portion (241) and a second positioning portion (242) for abutting against the mold (100); in the mold opening direction of the mold (100), the height of the first positioning portion (241) is higher than the height of the second positioning portion (242), and the positioning assembly (240) is used to install the mold (100) located on the frame (210).

2. The demoulding device according to claim 1, Features: The connecting member (230) comprises a positioning plate (231), a movable plate (232) and a guide column (233); The positioning plate (231) is connected to the frame (210), and together with the frame (210) defines a movable space for the mold (100) to open the mold; The movable plate (232) is used to install the demoulding assembly (220); the movable plate (232) is movably connected to the positioning plate (231) via the guide column (233); the guide column (233) is used to guide the movable plate (232) to move along the mold opening direction.

3. The demoulding device according to claim 2, Features: The connecting member (230) further comprises a limiting member (234) for limiting the movement of the movable plate (232) in the mold opening direction.

4. The demoulding device according to claim 3, Features: The limiting member (234) is a limiting spring; The limit spring is located between the movable plate (232) and the positioning plate (231), and two ends of the limit spring are respectively in contact with the movable plate (232) and the positioning plate (231), so that the movable plate (232) has a tendency to move along the mold closing direction.

5. The demoulding device according to any one of claims 1 to 4, Features: The demoulding device further comprises a power assembly (250), wherein the power assembly (250) is used to drive the demoulding assembly (220) to move, so that the demoulding assembly (220) has a first position and a second position relative to the frame (210); When the demoulding component (220) is in the first position, the demoulding component (220) is used to cooperate with the mold (100) in a mold closing state; When the demoulding assembly (220) is in the second position, the demoulding assembly (220) is used to cooperate with the mold (100) in the mold opening state.

6. The demoulding device according to claim 5, Features: The power component (250) is a cylinder.

7. An automatic demoulding device, Features: The automatic demoulding device comprises a conveying device (310), a sensing device (320), and a demoulding device according to any one of claims 1 to 6; The conveying device (310) is used to convey the mold (100) to the frame (210) of the demoulding device; The sensing device (320) is used to detect whether the mold (100) is on the frame (210).

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