Rotational molding box demolding equipment
By adopting a suction cup and threaded sleeve structure in the rotomolding box demolding equipment, the problem of inconvenient operation of traditional rotomolding box demolding equipment is solved, and convenient removal and stable operation of the rotomolding box are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU QINBAO SPECIAL EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional rotomolding box demolding equipment is inconvenient to operate during the demolding process and is difficult to efficiently remove the molded rotomolded box from the mold.
A demolding device for rotomolded boxes, including a mold frame and a handle, was designed. The mold frame is equipped with a suction cup, and the surface of the suction cup is connected to a fixed seat. The suction cup is sealed and detached through a fixed rod and a threaded sleeve structure. Combined with the adjustable length of the handle, it is easy to operate.
This allows for easy removal of the rotational molding box, improving operational convenience and stability, and simplifying the mold removal process.
Smart Images

Figure CN224170278U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rotomolding box demolding technology, and particularly relates to rotomolding box demolding equipment. Background Technology
[0002] Rotational molding boxes are boxes made from high-performance plastic raw materials such as polyethylene or polypropylene through a rotational molding process. In this process, the plastic raw material is placed in a mold, heated and rotated to make the plastic evenly coated on the inner surface of the mold, gradually melting and adhering, and finally cooling and solidifying to form the shape. When it is necessary to remove the formed rotational molding box, a rotational molding box demolding device is required.
[0003] The following problems exist in the actual use of the current rotational molding box demolding equipment: When using traditional rotational molding box demolding equipment, since the mold needs to be removed after injection molding, the molded rotational molding box is simply lifted by hand or other device, and then the molded rotational molding box is taken out. At this time, the demolding process is relatively troublesome. Utility Model Content
[0004] The purpose of this invention is to provide a demolding device for rotational molding boxes to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: a rotomolding box demolding device, including a mold frame and a handle, wherein a suction cup is provided inside the mold frame, a fixing seat is fixedly connected to the surface of the suction cup, a sealing sheet is sleeved inside the suction cup, a fixing rod is bonded to the surface of the sealing sheet, the fixing rod passes through the fixing seat, a fixing frame is welded to the surface of the fixing seat, a fixing block is welded to the surface of the fixing frame, a second internal threaded sleeve is welded to the surface of the fixing block, the fixing rod passes through the second internal threaded sleeve, and an external thread is formed on the surface of the fixing rod.
[0006] Preferably, a first internal threaded sleeve is welded to the other end of the fixing frame, an external threaded rod is sleeved inside the first internal threaded sleeve, a handle is welded to one end of the external threaded rod, a first turntable is welded to the surface of the handle, an anti-slip sleeve is adhered to the surface of the handle, and the fixing frame is arranged in a ring shape.
[0007] Preferably, a support frame is welded to the surface of the fixed frame, the support frame is distributed in a ring, and a support plate is welded to the other end of the support frame, the support plate is also distributed in a ring.
[0008] Preferably, anti-slip balls are fixedly connected to the surface of the anti-slip sleeve, and the anti-slip balls are evenly distributed. Reinforcing rings are welded to the surface of the fixing frame, and the reinforcing rings are evenly distributed.
[0009] Preferably, the bottom of the support plate has a groove, and anti-slip sheets are bonded inside the groove, with the anti-slip sheets arranged in a ring.
[0010] Preferably, a second turntable is welded to the other end of the fixing rod, and the fixing blocks are in an equidistant form.
[0011] The demolding equipment for rotomolded boxes of this invention has the following advantages:
[0012] 1. This rotomolding box demolding equipment features a suction cup inside the mold frame, with a fixed base fixedly connected to the suction cup surface. A sealing sheet is fitted inside the suction cup, and a fixing rod is bonded to the surface of the sealing sheet, passing through the fixed base. A fixing frame is welded to the surface of the fixed base, and a fixing block is welded to the surface of the fixing frame. A second internal threaded sleeve is welded to the surface of the fixing block, with the fixing rod passing through the second internal threaded sleeve. The fixing rod also has external threads. When using this device to remove the mold, the fixing rod is rotated first. Under the action of the external threads and the second internal threaded sleeve on the surface of the fixing rod, the fixing rod moves the sealing sheet until it adheres to the inner wall of the suction cup, thus providing a seal between the fixing rod and the fixed base. The suction cup can then be directly attached to the surface of the rotomolding box inside the mold frame, allowing the rotomolding box to be removed directly. Once the rotomolding box is in the appropriate position, the fixing rod can be rotated again to detach the sealing sheet from the inner wall of the suction cup, breaking the seal. Gas then enters the suction cup, causing the rotomolding box to detach. This method is very convenient to use.
[0013] 2. This rotomolding box demolding equipment features a first internal threaded sleeve welded to the other end of a fixed frame. An external threaded rod is fitted inside the first internal threaded sleeve, and a handle is welded to one end of the external threaded rod. A first turntable is welded to the handle surface, and an anti-slip sleeve is adhered to the handle surface. The fixed frame is arranged in a ring shape. During use, the device can be moved by holding the handle. The length of the device can be adjusted as needed depending on the user's arm length. Adjusting the length involves rotating the handle directly via the first turntable, which in turn rotates the external threaded rod. The handle is extended by the action of the first internal threaded sleeve, making it very convenient to use. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the suction cup structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the sealing sheet structure of this utility model;
[0018] Figure 4 For the present utility model Figure 2 Enlarged view of section A in the middle.
[0019] The markings in the diagram are as follows: 1. Mold frame; 2. Anti-slip sleeve; 3. Handle; 4. Anti-slip ball; 5. First turntable; 6. First internal threaded sleeve; 7. External threaded rod; 8. Fixing frame; 9. Fixing block; 10. Second internal threaded sleeve; 11. Fixing rod; 12. Suction cup; 13. Fixing seat; 14. Sealing plate; 15. Support frame; 16. Support plate; 17. Groove; 18. Anti-slip plate; 19. Second turntable; 20. Reinforcing ring. Detailed Implementation
[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0024] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of the rotational molding box demolding equipment of this utility model.
[0026] like Figures 1-4 As shown, the rotomolded box demolding device of this utility model includes a mold frame 1 and a handle 3. A suction cup 12 is provided inside the mold frame 1. A fixing seat 13 is fixedly connected to the surface of the suction cup 12. A sealing sheet 14 is sleeved inside the suction cup 12. By installing the sealing sheet 14, the sealing sheet 14 can control whether the inside of the suction cup 12 is sealed, thereby controlling the suction effect of the suction cup 12. It is very convenient to use. A fixing rod 11 is bonded to the surface of the sealing sheet 14. The fixing rod 11 passes through the fixing seat 13. A fixing frame 8 is welded to the surface of the fixing seat 13. A fixing block 9 is welded to the surface of the fixing frame 8. A second internal thread sleeve 10 is welded to the surface of the fixing block 9. The fixing rod 11 passes through the second internal thread sleeve 10. An external thread is opened on the surface of the fixing rod 11. By installing the suction cup 12, when it is necessary to remove the rotomolded box, the suction cup 12 can be adsorbed onto the surface of the rotomolded box inside the mold frame 1, and then the rotomolded box can be directly removed by the suction cup 12. It is very convenient to use.
[0027] The other end of the fixing frame 8 is welded with a first internal threaded sleeve 6. An external threaded rod 7 is fitted inside the first internal threaded sleeve 6. A handle 3 is welded to one end of the external threaded rod 7. A first turntable 5 is welded to the surface of the handle 3. An anti-slip sleeve 2 is glued to the surface of the handle 3. The fixing frame 8 is arranged in a ring shape. By installing the first internal threaded sleeve 6 and the external threaded rod 7, the length of the device can be adjusted as needed when the user's arm length is different. When adjusting the length of the device, the handle 3 can be rotated directly through the first turntable 5, which in turn drives the external threaded rod 7 to rotate. At this time, under the action of the first internal threaded sleeve 6, the handle 3 can be extended, which is very convenient to use.
[0028] A support frame 15 is welded to the surface of the fixed frame 8. The support frame 15 is arranged in a ring. A support plate 16 is welded to the other end of the support frame 15. The support plate 16 is also arranged in a ring. By installing the support plate 16, the support plate 16 can provide support for the rotomolding box, so that the rotomolding box will not tilt around the suction cup 12 as the center, thus improving the stability of the device during use.
[0029] Anti-slip balls 4 are fixedly connected to the surface of the anti-slip sleeve 2. The anti-slip balls 4 are evenly distributed. Reinforcing rings 20 are welded to the surface of the fixing frame 8. The reinforcing rings 20 are also evenly distributed. By installing the anti-slip balls 4, the friction between the palm and the handle 3 can be increased, thereby ensuring the stability of the device during use.
[0030] A groove 17 is provided at the bottom of the support plate 16, and anti-slip pieces 18 are bonded inside the groove 17. The anti-slip pieces 18 are arranged in a ring. By installing the anti-slip pieces 18, the friction between the support plate 16 and the rotomolded box can be increased, thereby further improving the stability of the device when picking up the rotomolded box, and making it more stable during use.
[0031] The other end of the fixing rod 11 is welded with a second turntable 19. The fixing blocks 9 are evenly spaced. By installing the second turntable 19, when it is necessary to rotate the fixing rod 11, the second turntable 19 can be used as the force point to drive the fixing rod 11 to move and rotate. It is very convenient to use.
[0032] The working principle of this rotomolding box demolding equipment is as follows: When using this device, the handle 3 should be adjusted first. At this time, a first internal threaded sleeve 6 is welded to the other end of the fixed frame 8, and an external threaded rod 7 is fitted inside the first internal threaded sleeve 6. The handle 3 is welded to one end of the external threaded rod 7, and a first turntable 5 is welded to the surface of the handle 3. An anti-slip sleeve 2 is adhered to the surface of the handle 3. The fixed frame 8 is arranged in a ring shape. During the use of this device, the handle 3 can be held by hand to control the movement of the device. When the arm length of the user is different, the length of the device can be adjusted as needed. When adjusting the length of the device, the handle 3 can be rotated directly through the first turntable 5, thereby driving the external threaded rod 7 to rotate. At this time, under the action of the first internal threaded sleeve 6, the handle 3 can be extended, making it very convenient to use. Then, the device can be used. At this time, a suction cup 12 is provided inside the mold frame 1, and a fixed seat 13 is fixedly connected to the surface of the suction cup 12. A sealing plate 14 is fitted inside the suction cup 12, and a fixed seat 13 is adhered to the surface of the sealing plate 14. The fixed rod 11 passes through the fixed seat 13, and a fixed frame 8 is welded to the surface of the fixed seat 13. A fixed block 9 is welded to the surface of the fixed frame 8, and a second internal threaded sleeve 10 is welded to the surface of the fixed block 9. At this time, the fixed rod 11 passes through the second internal threaded sleeve 10, and an external thread is formed on the surface of the fixed rod 11. When using this device to take a mold, the fixed rod 11 is rotated first. Under the action of the external thread and the second internal threaded sleeve 10 on the surface of the fixed rod 11, the fixed rod 11 can drive the sealing plate 14 to move until the sealing plate... 14 is attached to the inner wall of the suction cup 12, thereby providing a sealing effect between the fixing rod 11 and the fixing seat 13. Then, the suction cup 12 can be directly used to adhere to the surface of the rotational molding box inside the mold frame 1, and the rotational molding box can be directly taken out through the suction cup 12. When the rotational molding box is held in the right position, the fixing rod 11 can be rotated again to make the sealing sheet 14 detach from the inner wall of the suction cup 12, breaking the sealing effect inside the suction cup 12. Then, gas will enter the inside of the suction cup 12, at which point the rotational molding box will detach from the suction cup 12, which is very convenient to use.
[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A demolding device for a rotational molding box, comprising a mold frame (1) and a handle (3), characterized in that: The mold frame (1) is provided with a suction cup (12) inside. A fixing seat (13) is fixedly connected to the surface of the suction cup (12). A sealing sheet (14) is sleeved inside the suction cup (12). A fixing rod (11) is bonded to the surface of the sealing sheet (14). The fixing rod (11) passes through the fixing seat (13). A fixing frame (8) is welded to the surface of the fixing seat (13). A fixing block (9) is welded to the surface of the fixing frame (8). A second internal thread sleeve (10) is welded to the surface of the fixing block (9). The fixing rod (11) passes through the second internal thread sleeve (10). An external thread is opened on the surface of the fixing rod (11).
2. The rotomolding box demolding equipment according to claim 1, characterized in that: The other end of the fixing frame (8) is welded with a first internal thread sleeve (6), and an external thread rod (7) is sleeved inside the first internal thread sleeve (6). A handle (3) is welded to one end of the external thread rod (7), and a first turntable (5) is welded to the surface of the handle (3). An anti-slip sleeve (2) is adhered to the surface of the handle (3). The fixing frame (8) is arranged in a ring shape.
3. The demolding equipment for rotational molding boxes according to claim 1, characterized in that: The fixed frame (8) has a support frame (15) welded to its surface. The support frame (15) is arranged in a ring shape. The other end of the support frame (15) is welded with a support plate (16), which is also arranged in a ring shape.
4. The demolding equipment for rotational molding boxes according to claim 2, characterized in that: The surface of the anti-slip sleeve (2) is fixedly connected with anti-slip balls (4), which are equidistantly distributed. The surface of the fixing frame (8) is welded with reinforcing rings (20), which are equidistantly distributed.
5. The demolding equipment for rotational molding boxes according to claim 3, characterized in that: The support plate (16) has a groove (17) at the bottom, and anti-slip sheets (18) are bonded inside the groove (17). The anti-slip sheets (18) are arranged in a ring shape.
6. The demolding equipment for rotational molding boxes according to claim 1, characterized in that: The other end of the fixing rod (11) is welded to a second turntable (19), and the fixing block (9) is in an equidistant form.