Mold closing positioning mechanism for rotational molding mold
By introducing guide ports, inclined blocks, and servo motor-driven roller transmission into the rotational molding die, precise die positioning and efficient die closing are achieved, solving the problems of low die closing efficiency and die damage in the existing technology, and improving the reliability of rotational molding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-24
AI Technical Summary
Existing rotational molding dies are inefficient and prone to damage during mold closing, requiring improvements to the mold closing and positioning mechanism to enhance accuracy.
A mold closing and positioning mechanism was designed, including a guide port, a wedge block, a positioning rod, and a through hole. The guide port guides the positioning rod to achieve precise alignment and fixation. Combined with the servo motor driving the roller transmission, the mold can be accurately closed and separated.
It improves the accuracy and efficiency of rotational molding die closing, reduces mold damage, and enhances the reliability and ease of operation of die closing.
Smart Images
Figure CN224028171U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to rotational moulding die technical field, and specifically is a kind of die closing positioning mechanism for rotational moulding die. BACKGROUND
[0002] Rotational molding, also known as rotational molding or rotational casting molding, is a hollow molding method of thermoplastic, which makes powdered or paste material evenly distribute in the mold cavity under the action of gravity and centrifugal force and melt, and finally gets hollow products by cooling and demolding.
[0003] During the processing of rotational molding products, the rotational molding mold needs to be closed for processing. The mold closing is called mold closing. When the rotational molding mold is closed, the two molds need to be accurately positioned before they can be closed. In the existing rotational molding product processing process, the two molds are usually brought into contact, and then auxiliary tools such as crowbars and screwdrivers are used to forcibly align the corresponding screw holes of the separated parts of the mold in order to insert screws for mold closing. Although this method can close the mold, it is low in efficiency and can cause damage to the mold. Therefore, it needs to be improved. UTILITY MODEL CONTENTS
[0004] The utility model aims at the above problems, and provides a die closing positioning mechanism for rotational molding mold, which has the advantages of improving the accuracy of mold closing.
[0005] To achieve the above object, the utility model provides the following technical scheme: a die closing positioning mechanism for rotational molding mold, comprising a fixed mold, a first fixed ring is fixedly connected to the front side of the outer surface of the fixed mold, a guide hole is formed in the inside of the first fixed ring, a positioning hole is formed in the inside of the first fixed ring behind the guide hole, a fixed block is fixedly installed on the back of the first fixed ring, an inclined block is movably connected to the inside of the left and right sides of the fixed block, a hinge rod is hingedly connected to the outside of the top of the inclined block, an activity plate is hingedly connected to the top end of the hinge rod, a threaded rod is movably connected to the inside of the activity plate, the bottom end of the threaded rod is fixedly connected to the top of the fixed block, a spring is fixedly connected to the bottom of the activity plate, the other end of the spring is fixedly connected to the outer surface of the fixed block, a moving rod is fixedly installed on the right side of the first fixed ring, a sliding block is movably connected to the outer surface of the moving rod, a second fixed ring is hingedly connected to the left side of the sliding block, a movable mold is movably connected to the inside of the second fixed ring, a positioning rod is fixedly connected to the back of the second fixed ring, and a through hole is formed in the inside of the positioning rod.
[0006] As preferred in the utility model, a nut is threadedly connected to the outer surface of the threaded rod, and the bottom of the nut is movably connected to the top of the activity plate.
[0007] As the utility model is preferred, the top of the threaded rod is fixedly installed with a limiting block, and the front end of the movable rod is fixedly connected with a limiting plate.
[0008] As the utility model is preferred, the left and right sides of the fixed block are fixedly installed with a supporting plate, and the inner surface of the supporting plate is movably connected with the outer surface of the inclined block.
[0009] As the utility model is preferred, the second fixed ring and the first fixed ring are both internally provided with a bolt hole, and the back surface of the fixed mold is fixedly connected with a first roller.
[0010] As the utility model is preferred, the outer surface of the first roller movably sleeves a supporting plate, and the bottom of the supporting plate is fixedly connected with a bottom plate.
[0011] As the utility model is preferred, the rear side of the top of the bottom plate is fixedly installed with a servo motor, the other end of the servo motor output shaft is fixedly connected with a rotating shaft, the outer surface of the rotating shaft fixedly sleeves a second roller, and the second roller is in transmission connection with the first roller through a transmission belt.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] The utility model discloses a guiding port, an inclined block, a positioning rod and a through hole are arranged, an operator pushes a movable mold to move to the direction of a fixed mold, at this time, the positioning rod will move to the inside of the guiding port, when the positioning rod is not accurately aligned with the positioning hole, the rear end of the positioning rod will contact the inner surface of the guiding port, thereby gradually sliding into the inside of the positioning hole along the inclined surface of the guiding port along with the movement of the movable mold, thereby realizing the accurate positioning of the fixed mold and the movable mold, when the positioning rod enters the inside of the fixed block, the inclined block will be inserted into the inside of the through hole, thereby fixing the positioning rod and the movable mold, and the operator is facilitated to clamp the mold. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 It is a sectional structure schematic diagram of the front of the utility model;
[0016] Figure 3 It is a sectional structure schematic diagram of the side of the utility model;
[0017] Figure 4 It is a structural schematic diagram of the back of the utility model;
[0018] Figure 5 It is Figure 3 It is a local enlarged structure schematic diagram of A in the middle.
[0019] In the diagram: 1. Fixed mold; 2. First fixing ring; 3. Guide opening; 4. Positioning hole; 5. Fixing block; 6. Inclined block; 7. Hinge rod; 8. Movable plate; 9. Threaded rod; 10. Spring; 11. Moving rod; 12. Slider; 13. Second fixing ring; 14. Moving mold; 15. Positioning rod; 16. Through hole; 17. Nut; 18. Limiting block; 19. Limiting plate; 20. Support plate; 21. Bolt hole; 22. First roller; 23. Support plate; 24. Base plate; 25. Servo motor; 26. Rotating shaft; 27. Second roller; 28. Transmission belt. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1 to 5 As shown, this utility model provides a mold closing and positioning mechanism for rotational molding, including a fixed mold 1. A first fixing ring 2 is fixedly sleeved on the front side of the outer surface of the fixed mold 1. A guide opening 3 is opened inside the first fixing ring 2. A positioning hole 4 is opened inside the first fixing ring 2 located behind the guide opening 3. A fixing block 5 is fixedly installed on the back of the first fixing ring 2. An inclined block 6 is movably sleeved on both the left and right sides inside the fixing block 5. A hinge rod 7 is hinged to the outer side of the top of the inclined block 6. A movable plate 8 is hinged to the top of the hinge rod 7. A threaded rod 9 is movably sleeved inside the movable plate 8. The bottom end of the threaded rod 9 is fixedly connected to the top of the fixed block 5. A spring 10 is fixedly connected to the bottom of the movable plate 8. The other end of the spring 10 is fixedly connected to the outer surface of the fixed block 5. A moving rod 11 is fixedly installed on the right side of the first fixing ring 2. A slider 1 is movably sleeved on the outer surface of the moving rod 11. 2. A second fixing ring 13 is hinged to the left side of the slider 12. A moving mold 14 is fixedly sleeved inside the second fixing ring 13. A positioning rod 15 is fixedly connected to the back of the second fixing ring 13. A through hole 16 is opened inside the positioning rod 15. When the operator closes the mold, he can push the moving mold 14 to make the slider 12 move along the outer surface of the moving rod 11, so that the second fixing ring 13 moves closer to the first fixing ring 2. This allows the left end of the positioning rod 15 to gradually insert into the guide hole 3. Since the guide hole 3 is a conical groove, when the positioning rod 15 is not precisely aligned with the positioning hole 4, the left end of the positioning rod 15 will contact the inner surface of the guide hole 3 and gradually slide into the positioning hole 4 along the inner surface of the guide hole 3. This facilitates the operator to position and close the mold between the fixed mold 1 and the moving mold 14.
[0022] The outer surface of the threaded rod 9 is sleeved with a nut 17, and the bottom of the nut 17 is movably connected with the top of the movable plate 8; the operator presses the movable plate 8 downwards, so that the movable plate 8 drives the two inclined blocks 6 to move in opposite directions through the hinge rod 7, thereby releasing the fixing effect on the positioning rod 15; at this time, the nut 17 is rotated to move downwards, so that the position of the movable plate 8 can be fixed, and the movable plate 8 is prevented from returning.
[0023] The top of the threaded rod 9 is fixedly provided with a limiting block 18, and the front end of the moving rod 11 is fixedly connected with a limiting plate 19; the limiting block 18 is arranged, so that the nut 17 and the movable plate 8 are prevented from falling off from the outer surface of the threaded rod 9; and due to the design of the limiting plate 19, the sliding block 12 is prevented from falling off from the outer surface of the moving rod 11.
[0024] The left and right sides of the fixed block 5 are fixedly provided with supporting plates 20, and the inner surfaces of the supporting plates 20 are movably connected with the outer surfaces of the inclined blocks 6; the supporting plates 20 are arranged, so that the supporting plates 20 can support and limit the inclined blocks 6, and the inclined blocks 6 are prevented from falling off from the inside of the fixed block 5 after moving outwards.
[0025] The inside of the second fixed ring 13 and the first fixed ring 2 is provided with a bolt hole 21, and the back of the fixed mold 1 is fixedly connected with a first roller 22; when the fixed mold 1 is combined with the movable mold 14, the operator can insert a bolt into the inside of the bolt hole 21, so that the bolt penetrates through the first fixed ring 2 and the second fixed ring 13, thereby fixing the fixed mold 1 and the movable mold 14, and the fixed mold 1 and the movable mold 14 can be more tightly sealed.
[0026] The outer surface of the first roller 22 movably sleeves a supporting plate 23, and the bottom of the supporting plate 23 is fixedly connected with a bottom plate 24; the supporting plate 23 is arranged, so that the supporting plate 23 can support and fix the first roller 22, thereby supporting the fixed mold 1.
[0027] The rear side of the top of the bottom plate 24 is fixedly provided with a servo motor 25, one end of the output shaft of the servo motor 25 is fixedly connected with a rotating shaft 26, the outer surface of the rotating shaft 26 is fixedly sleeved with a second roller 27, and the second roller 27 is in transmission connection with the first roller 22 through a transmission belt 28; the operator starts the servo motor 25, so that the rotating shaft 26 drives the second roller 27 to rotate, and then the second roller 27 drives the first roller 22 to rotate through cooperation with the transmission belt 28.
[0028] The working principle and use process of the utility model:
[0029] After the material is poured into the inside of the fixed mold 1, the operator can push the movable mold 14 towards the fixed mold 1, so that the second fixed ring 13 drives the positioning rod 15 to move, when the positioning rod 15 is not accurately aligned with the positioning hole 4, the rear end of the positioning rod 15 will contact the outer surface of the guide port 3 at this time, so as to enter the inside of the positioning hole 4 along the outer surface of the guide port 3 with the advancement of the movable mold 14, so as to realize the accurate alignment of the fixed mold 1 and the movable mold 14, when the positioning rod 15 passes through the first fixed ring 2 and enters the inside of the fixed block 5, the rear end of the positioning rod 15 will extrude the inclined surface of the inclined block 6, so that the two inclined blocks 6 move in opposite directions, and the inclined block 6 drives the movable plate 8 to move downward along the outer surface of the threaded rod 9 through the hinged rod 7, so that the spring 10 is compressed, when the fixed mold 1 and the movable mold 14 are closed, the spring 10 will push the movable plate 8 to rise under the action of elastic force at this time, so as to drive the two inclined blocks 6 to insert into the inside of the through hole 16 through the hinged rod 7, so as to fix the positioning rod 15, and then fix the fixed mold 1 and the movable mold 14, at this time, the operator can insert the bolt into the inside of the bolt hole 21 to reinforce the fixed mold 1 and the movable mold 14.
[0030] When the rotational molding is completed, the operator rotates the nut 17, so that the nut 17 descends along the outer surface of the threaded rod 9, so that the movable plate 8 descends, so that the hinged rod 7 drives the two inclined blocks 6 to move in opposite directions, so as to be separated from the inside of the through hole 16, and then the fixing effect of the positioning rod 15 is released, at this time, the operator can pull the movable mold 14 outward to separate the fixed mold 1 and the movable mold 14, when the sliding block 12 moves to the front end of the movable rod 11, the operator can rotate the movable mold 14, so that the movable mold 14 is flipped outward, so as to avoid interfering with the operator to take the product.
[0031] It should be noted that, in this text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.
[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A mold closing and positioning mechanism for rotational molding, comprising a fixed mold (1), characterized in that: A first fixing ring (2) is fixedly sleeved on the front side of the outer surface of the fixed mold (1). A guide opening (3) is provided inside the first fixing ring (2). A positioning hole (4) is provided inside the first fixing ring (2) located behind the guide opening (3). A fixing block (5) is fixedly installed on the back side of the first fixing ring (2). An inclined block (6) is movably sleeved on both the left and right sides inside the fixing block (5). A hinge rod (7) is hinged to the outer side of the top of the inclined block (6). A movable plate (8) is hinged to the top of the hinge rod (7). A threaded rod (9) is movably sleeved inside the movable plate (8). The bottom end of the threaded rod (9) is connected to... The top of the fixed block (5) is fixedly connected, and the bottom of the movable plate (8) is fixedly connected with a spring (10). The other end of the spring (10) is fixedly connected to the outer surface of the fixed block (5). A moving rod (11) is fixedly installed on the right side of the first fixed ring (2). A slider (12) is movably sleeved on the outer surface of the moving rod (11). A second fixed ring (13) is hinged on the left side of the slider (12). A moving mold (14) is fixedly sleeved inside the second fixed ring (13). A positioning rod (15) is fixedly connected to the back of the second fixed ring (13). A through hole (16) is opened inside the positioning rod (15).
2. The mold closing and positioning mechanism for rotational molding according to claim 1, characterized in that: The outer surface of the threaded rod (9) is threaded with a nut (17), and the bottom of the nut (17) is movably connected to the top of the movable plate (8).
3. The mold closing and positioning mechanism for rotational molding according to claim 1, characterized in that: A limiting block (18) is fixedly installed on the top of the threaded rod (9), and a limiting plate (19) is fixedly connected to the front end of the moving rod (11).
4. The mold closing and positioning mechanism for rotational molding according to claim 1, characterized in that: The fixed block (5) has a support plate (20) fixedly installed on both the left and right sides, and the inner surface of the support plate (20) is movably connected to the outer surface of the inclined block (6).
5. The mold closing and positioning mechanism for rotational molding according to claim 1, characterized in that: Both the second fixing ring (13) and the first fixing ring (2) have bolt holes (21) inside, and the back of the fixed mold (1) is fixedly connected to the first roller (22).
6. The mold closing and positioning mechanism for rotational molding according to claim 5, characterized in that: A support plate (23) is movably sleeved on the outer surface of the first roller (22), and a base plate (24) is fixedly connected to the bottom of the support plate (23).
7. The mold closing and positioning mechanism for rotational molding according to claim 6, characterized in that: A servo motor (25) is fixedly installed on the rear side of the top of the base plate (24). The other end of the output shaft of the servo motor (25) is fixedly connected to a rotating shaft (26). A second roller (27) is fixedly sleeved on the outer surface of the rotating shaft (26). The second roller (27) is connected to the first roller (22) through a transmission belt (28).