A rapid mold changeable roto-molding device

Abstract

The utility model discloses a quick die changeable roto -molding forming device relates to roto -molding forming device technical field, including bottom cavity seat, bottom cavity seat bottom is provided with drive seat, is provided with first motor in drive seat inside, and bottom cavity seat is fixedly connected with first motor output end, and bottom cavity seat upper end is provided with mould assembly, and bottom cavity seat top surface slidingly connected with first support block, and bottom cavity seat top is fixedly connected with second support block, and first support block is rotatably connected with mould main body between second support block, and one side of mould main body detachably is provided with mould cover subassembly, and one side fixedly connected with connecting rod of mould main body, and the inside of mould main body is provided with forming chamber, through the dismounting mechanism, the user is convenient to the mould and is dismantled and installs, and then the user is convenient to the mould and is overhauled and maintains, and the practicality of device is promoted.

Description

Technical Field

[0001] This utility model relates to the technical field of rotational molding equipment, specifically a rotational molding equipment with quick mold changing capability. Background Technology

[0002] Rotational molding, also known as rotational molding, is a hollow molding method for thermoplastic plastics. The method involves first adding plastic raw material into a mold, then continuously rotating the mold along two perpendicular axes while heating it. Under the influence of gravity and heat, the plastic raw material inside the mold gradually and evenly coats, melts, and adheres to the entire surface of the mold cavity, forming the desired shape. After cooling and solidification, the finished product is formed. However, traditional rotational molding equipment is simple in function and inconvenient for mold changes; therefore, a rotational molding equipment with rapid mold changes is needed.

[0003] Based on this, after searching, such as application number CN201310336723.4, a photocurable rotational molding device and method, the device is mainly composed of a tumbling driver, a fixed flange, a mold, a support shaft, a light source, and a cover. The tumbling driver is the driving mechanism for the tumbling action, and the tumbling driver has an output shaft at its end. However, the above-mentioned devices have the following problems when in use: traditional rotational molding devices have simple functions, making it inconvenient for users to change molds and maintain and repair them, thus reducing the applicability of the devices.

[0004] To address the aforementioned problems, a rotational molding apparatus with rapid mold changing capability is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a rotational molding device with quick mold change capability. By using this device, the problems of traditional rotational molding devices in the background art, such as simple functions, inconvenience for users to change molds, inconvenience for users to maintain and repair molds, and reduced applicability of the device, are solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotational molding device with rapid mold change capability, comprising a bottom cavity base, a drive base at the bottom of the bottom cavity base, a first motor inside the drive base, the bottom cavity base being fixedly connected to the output end of the first motor, a mold assembly at the upper end of the bottom cavity base, a first support block slidably connected to the top surface of the bottom cavity base, a second support block fixedly connected to the top of the bottom cavity base, a mold body rotatably connected between the first support block and the second support block, a mold cover assembly detachably disposed on one side of the mold body, a connecting rod fixedly connected to one side of the mold body, and a molding chamber inside the mold body; a drive mechanism is disposed inside the second support block, a hydraulic cylinder is fixedly connected inside the bottom cavity base, and the first support block is fixedly connected to the output end of the hydraulic cylinder.

[0007] The above-described structure design uses a first motor at the bottom of the cavity seat to drive the entire cavity seat to rotate. This, in conjunction with a drive mechanism within the second support block, causes the mold body and mold cover assembly to rotate, achieving dual-axis rotation of the mold. This ensures that the plastic raw material evenly covers the inner wall of the mold cavity under the action of gravity and centrifugal force, improving the uniformity of product molding. Simultaneously, a hydraulic cylinder within the cavity seat drives the first support block to slide, allowing for flexible adjustment of the distance between the first and second support blocks. This provides operational space for mold installation and disassembly, solving the problem of difficulty in disassembling the mold after it is fixed in traditional devices.

[0008] Preferably, a mounting rod is rotatably connected to one side of the first support block, the connecting rod is matched with the mounting rod, and the connecting rod is engaged with one end of the mounting rod.

[0009] The above-described structure utilizes the matching engagement of the connecting rod and the mounting rod to achieve a rapid connection between the mold body and the first support block. When the hydraulic cylinder retracts, the mounting rod and the connecting rod engage tightly, ensuring the mold body remains stable and does not loosen during rotation. When disassembly is required, the hydraulic cylinder extends, pushing the first support block to move, causing the mounting rod and the connecting rod to separate. This allows for separation of the mold body from the support structure without removing bolts, significantly simplifying the disassembly process and improving mold change efficiency.

[0010] Preferably, a connecting plate is fixedly connected to the mold cover assembly near the second support block, and a plug rod is fixedly connected to one side of the connecting plate, with multiple sets of plug rods provided.

[0011] With the above-described design, multiple sets of inserts on the connecting plate precisely match the insertion holes of the passive belt roller component, enabling rapid docking of the mold cover assembly and the drive system through an insertion method. The evenly distributed multiple sets of inserts transmit rotational torque, ensuring that the mold cover assembly rotates synchronously with the passive belt roller component and preventing slippage. Furthermore, the insertion structure allows for tool-free installation and disassembly, facilitating quick removal of the mold cover assembly for inspection or replacement.

[0012] Preferably, a mounting plate is fixedly connected to one side of the second support block, and a passive belt roller component is rotatably connected to one side of the mounting plate, with one end of the passive belt roller component extending into the interior of the second support block.

[0013] The above-described structure provides stable support for the passive belt roller assembly, ensuring its coaxiality during rotation and reducing vibration. One end of the passive belt roller assembly extends into the second support block, facilitating connection with the belt assembly and enabling power transmission. This structure integrates the support and power transmission functions of the passive belt roller assembly, guaranteeing rotational stability and providing a structural basis for the rapid docking of the mold cover assembly.

[0014] Preferably, the passive belt roller component has a socket on one side, and there are multiple sets of sockets, which are matched with the insertion rod.

[0015] With the above-mentioned structural design, multiple sets of insertion holes and insertion rods correspond one-to-one. The connection strength between the mold cover assembly and the passive belt roller component is enhanced through multi-point contact, avoiding damage caused by excessive force on a single connection point. At the same time, the gap fit between the insertion holes and insertion rods ensures a smooth insertion process, reduces the difficulty of docking, and further improves the mold change speed.

[0016] Preferably, the driving mechanism includes a second motor fixedly connected inside the second support block, an active belt roller component rotatably connected inside the second support block, the active belt roller component being fixedly connected to the output end of the second motor, and a belt component being sleeved between the passive belt roller component and the active belt roller component.

[0017] With the above-described design, the second motor drives the passive belt roller assembly to rotate via the active belt roller assembly and the belt assembly, thus achieving indirect power transmission. Belt drive has a buffering and shock-absorbing effect, which can reduce the impact of motor startup on the mold; in addition, belt drive has a simple structure, is easy to maintain, and can ensure power transmission efficiency by adjusting belt tension, providing reliable power for the stable rotation of the mold.

[0018] Preferably, the active belt roller component and the passive belt roller component have evenly distributed toothed grooves on their outer periphery, and multiple sets of toothed grooves are provided. The inner wall of the belt component is provided with toothed blocks, and multiple sets of toothed blocks are provided. The toothed blocks are matched with the toothed grooves. The second motor is started to drive the mold cover assembly and the mold body to rotate.

[0019] The above-mentioned structural design prevents slippage between the belt and the belt roller by meshing the toothed grooves and toothed blocks, ensuring that the rotation speed of the active belt roller component and the passive belt roller component is synchronized, thus ensuring the stability of the mold rotation speed and improving the product forming accuracy. The multiple sets of toothed grooves and toothed blocks are evenly distributed, which can disperse the force, extend the service life of the belt and belt roller, and reduce equipment maintenance costs.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This application provides a rotational molding apparatus with quick mold changing capability. The mold is rotated by a rotating mechanism to ensure that the molten plastic evenly covers the inner wall of the mold under centrifugal force, so that the raw material is more evenly covered in the molding chamber. The plastic raw material melts, adheres and forms uniformly in the mold, improving the quality of the apparatus. 2. This application provides a rotational molding device with quick mold change capability. Through the disassembly mechanism, it is convenient for users to disassemble and install the mold, thereby facilitating mold inspection and maintenance and improving the practicality of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural diagram of the bottom cavity seat and mold assembly of this utility model; Figure 3 This is a structural diagram of the mold assembly and mold cover assembly of this utility model; Figure 4 This is a structural diagram of the rotation drive mechanism of this utility model; Figure 5 This is a structural diagram of the first support block and the driving component of this utility model.

[0022] In the figure: 1. Bottom cavity seat; 11. Drive seat; 2. Mold assembly; 21. First support block; 22. Second support block; 23. Mold body; 24. Mold cover assembly; 25. Connecting rod; 251. Mounting rod; 26. Mounting plate; 241. Connecting disc; 261. Passive belt roller assembly; 27. Second motor; 28. Active belt roller assembly; 29. ​​Belt assembly; 211. Hydraulic cylinder. Detailed Implementation

[0023] 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.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Combination Figures 1-5 A rotational molding apparatus with quick mold change capability includes a base cavity 1, a drive seat 11 at the bottom of the base cavity 1, a first motor inside the drive seat 11, the base cavity 1 being fixedly connected to the output end of the first motor, a mold assembly 2 at the upper end of the base cavity 1, a first support block 21 slidably connected to the top surface of the base cavity 1, a second support block 22 fixedly connected to the top of the base cavity 1, a mold body 23 rotatably connected between the first support block 21 and the second support block 22, a mold cover assembly 24 detachably mounted on one side of the mold body 23, a connecting rod 25 fixedly connected to one side of the mold body 23, and a molding chamber inside the mold body 23; a drive mechanism is installed inside the second support block 22, a hydraulic cylinder 211 is fixedly connected inside the base cavity 1, and the first support block 21 is fixedly connected to the output end of the hydraulic cylinder 211.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] Example 1:

[0028] The first support block 21 is rotatably connected to one side of the mounting rod 251. The connecting rod 25 and the mounting rod 251 are matched with each other, and the connecting rod 25 is engaged with one end of the mounting rod 251. A connecting plate 241 is fixedly connected to the mold cover assembly 24 near the second support block 22, and a plug rod is fixedly connected to one side of the connecting plate 241. Multiple sets of plug rods are provided. A mounting plate 26 is fixedly connected to one side of the second support block 22, and a passive belt roller component 261 is rotatably connected to one side of the mounting plate 26. One end of the passive belt roller component 261 extends into the interior of the second support block 22. The passive belt roller component 261 has a socket on one side, and there are multiple sets of sockets. The sockets and the plugs are matched with each other. The drive mechanism includes a second motor 27 fixedly connected inside the second support block 22, an active belt roller component 28 rotatably connected inside the second support block 22, the active belt roller component 28 being fixedly connected to the output end of the second motor 27, and a belt component 29 being sleeved between the passive belt roller component 261 and the active belt roller component 28. The active belt roller component 28 and the passive belt roller component 261 have toothed grooves evenly distributed on their outer periphery, and multiple sets of toothed grooves are provided. The inner wall of the belt component 29 is provided with toothed blocks, and multiple sets of toothed blocks are provided. The toothed blocks and toothed grooves are matched with each other. The second motor 27 is started to drive the mold cover assembly 24 and the mold body 23 to rotate.

[0029] In summary: During the rapid installation and fixing of the mold, the mold assembly 2 is docked: the mold body 23 and the mold cover assembly 24 are initially positioned by the engaging structure of the connecting rod 25 and the mounting rod 251, ensuring that the two are precisely docked to form a closed molding chamber; the connecting plate 241 on one side of the mold cover assembly 24 is provided with multiple sets of insert rods, which are precisely matched with the insertion holes on the passive belt roller component 261 of the mounting plate 26 on the second support block 22. After the insert rods are inserted into the insertion holes, the mechanical connection between the mold and the drive system is completed without the need for complex bolt fixing; The first support block 21 can slide along the top surface of the bottom cavity seat 1 under the drive of the hydraulic cylinder 211, assisting in the overall positioning of the mold assembly 2 and ensuring stability during rotation; Open the mold cover assembly 24, add a quantitative amount of plastic raw material powder or granules into the molding cavity of the mold body 23, and then close the mold cover assembly 24. The above-mentioned locking and inserting rod structure achieves sealing and fixation. The connecting plate 241 and the passive belt roller component 261 are locked and fixedly connected. The hydraulic cylinder 211 is contracted. The hydraulic cylinder 211 drives the first support block 21 and the mounting rod 251 to contract, so that the mounting rod 251 and the connecting rod 25 are locked and fixedly connected. Then the mold body 23 is installed between the first support block 21 and the second support block 22. During the dual-axis rotation heating stage, the user starts the first motor at the bottom of the cavity seat 1, driving the cavity seat 1 to rotate around the horizontal axis; at the same time, the second motor 27 inside the second support block 22 starts, driving the passive belt roller component 261 to rotate through the active belt roller component 28 and belt component 29, thereby driving the mold body 23 and the mold cover assembly 24 to rotate around their own vertical axis. The dual-axis rotation causes the raw material inside the mold to be evenly distributed under the combined action of gravity and centrifugal force. The raw material is heated, vaporized and melted, and gradually adheres to the inner wall of the molding cavity to form a uniform product prototype. After the molded workpiece cools down, a hollow product with the same shape as the mold cavity is formed. After cooling, the dual-axis rotation stops, the two sets of motors of the device are turned off, the hydraulic cylinder 211 extends to drive the first support block 21 to move, the first support block 21 can drive the mounting rod 251 to move away from the connecting rod 25, so that the connecting rod 25 and the mounting rod 251 are completely separated, and at the same time the distance between the first support block 21 and the second support block 22 is pulled to the maximum. The user pulls the mold body 23 horizontally away from the mold cover assembly 24 until the mold cover assembly 24 is separated from the mold body 23, so that the mold body 23 can be removed. At the same time, the user can pull the mold cover assembly 24 away from the passive belt roller component 261, so that the passive belt roller component 261 is separated from the connecting plate 241, and then the mold cover assembly 24 can be removed from the mounting plate 26. The molded product can be taken out by opening the mold cover assembly 24, which also makes it convenient for the user to change the mold. The quick-connection mechanism allows for the mechanical and power connection between the mold and the drive system, significantly reducing mold change time and solving the problems of cumbersome mold changes and inconvenient maintenance in traditional devices. It is suitable for the production of a variety of products in small batches.

[0030] It should be noted that the aforementioned electrical components are equipped with power supplies, and their control methods are existing technologies. To avoid redundancy, they will be described here uniformly. Furthermore, this application is primarily for the protection of mechanical equipment, so the control methods and circuit connections will not be explained in detail herein. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotational molding apparatus with quick mold change capability, comprising a base cavity (1), characterized in that: The bottom cavity seat (1) is provided with a drive seat (11), and a first motor is provided inside the drive seat (11). The bottom cavity seat (1) is fixedly connected to the output end of the first motor. A mold assembly (2) is provided at the upper end of the bottom cavity seat (1). A first support block (21) is slidably connected to the top surface of the bottom cavity seat (1). A second support block (22) is fixedly connected to the top of the bottom cavity seat (1). A mold body (23) is rotatably connected between the first support block (21) and the second support block (22). A mold cover assembly (24) is detachably provided on one side of the mold body (23). A connecting rod (25) is fixedly connected to one side of the mold body (23). A molding chamber is provided inside the mold body (23). A drive mechanism is provided inside the second support block (22). A hydraulic cylinder (211) is fixedly connected inside the bottom cavity seat (1). The first support block (21) is fixedly connected to the output end of the hydraulic cylinder (211).

2. The rotational molding apparatus with rapid mold change capability according to claim 1, characterized in that: The first support block (21) is rotatably connected to one side of the mounting rod (251), the connecting rod (25) is matched with the mounting rod (251), and the connecting rod (25) is engaged with one end of the mounting rod (251).

3. The rotational molding apparatus with rapid mold change capability according to claim 2, characterized in that: The mold cover assembly (24) is fixedly connected to a connecting plate (241) on the side near the second support block (22), and a plug rod is fixedly connected to one side of the connecting plate (241), and multiple sets of plug rods are provided.

4. The rotational molding apparatus with rapid mold change capability according to claim 3, characterized in that: A mounting plate (26) is fixedly connected to one side of the second support block (22), and a passive belt roller component (261) is rotatably connected to one side of the mounting plate (26). One end of the passive belt roller component (261) extends into the interior of the second support block (22).

5. The rotational molding apparatus with rapid mold change capability according to claim 4, characterized in that: The passive belt roller component (261) has a socket on one side, and there are multiple sets of sockets. The sockets are matched with the plug rods.

6. The rotational molding apparatus with rapid mold change capability according to claim 5, characterized in that: The drive mechanism includes a second motor (27) fixedly connected inside the second support block (22), an active belt roller component (28) rotatably connected inside the second support block (22), the active belt roller component (28) being fixedly connected to the output end of the second motor (27), and a belt component (29) being sleeved between the passive belt roller component (261) and the active belt roller component (28).

7. The rotational molding apparatus with rapid mold change capability according to claim 6, characterized in that: The active belt roller component (28) and the passive belt roller component (261) have toothed grooves evenly distributed on their outer periphery, and multiple sets of toothed grooves are provided. The inner wall of the belt component (29) is provided with toothed blocks, and multiple sets of toothed blocks are provided. The toothed blocks are matched with the toothed grooves. The second motor (27) is started to drive the mold cover assembly (24) and the mold body (23) to rotate.

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