Rotational molding mold transfer trolley
By designing a limiting and positioning structure for the frame and support frame, the problems of inaccurate loading position and safety of the rotational molding mold transfer vehicle were solved, achieving seamless integration of automated production and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO THUNDER-MAN PLASTIC TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
AI Technical Summary
Existing rotational molding mold transfer vehicles cannot achieve precise and safe loading positions, are not suitable for automated production, and pose safety hazards and operational inconveniences.
A transfer vehicle comprising a frame and a rotational molding mold was designed. The frame consists of a chassis and track wheels. The rotational molding mold is positioned by a support frame and a limit seat, and precise positioning and locking are achieved by a locking assembly. A workstation is provided for easy operation.
It achieves precise positioning and safety of rotational molding molds during the transfer process, and can be connected with automated production equipment, improving the convenience and safety of operation.
Smart Images

Figure CN224225959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a transfer vehicle, specifically a rotational molding mold transfer vehicle. Background Technology
[0002] A rotational molding mold transfer vehicle is a vehicle used for transferring rotational molding molds. Existing transfer vehicles simply load and move the molds to the processing position, thus requiring no additional structural design to ensure the accuracy of the mold's loading position. However, to improve production efficiency, the mold transfer process needs to be integrated into automated production equipment. For example, after the transfer vehicle moves the mold along the ground track to its designated position, it should seamlessly connect with subsequent automated loading and unloading operations. Therefore, the loading position of the mold on the transfer vehicle must be extremely precise, requiring accurate positioning during loading. Furthermore, the existing transfer vehicles are clearly insufficient to meet the above requirements, as the rotational molding molds on them are simply placed without locking. This can lead to accidental tipping due to inertia during vehicle start-up or stopping, posing a safety hazard. In addition, some rotational molding molds, especially large ones, require workers to assist in loading or unloading the product, but many transfer vehicles lack a work area for workers. In practice, the molds can only be lifted off the transfer vehicle for operation, which is quite inconvenient. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a rotational molding mold transfer vehicle that has accurate loading position, safe transfer process, convenient operation and can be applied to automated production.
[0004] The technical problem of this utility model is solved by the following technical solution:
[0005] A rotational molding mold transfer vehicle includes a frame and a rotational molding mold mounted on the frame. The frame consists of a chassis and several track wheels mounted on the bottom of the chassis. The rotational molding mold is rotatably supported on two support frames via support shafts at both ends. Each support frame has a limiting seat at its bottom. The two support frames are positioned on the chassis. The two ends of the chassis are respectively provided with locking components corresponding to the positions of the limiting seats. The locking components cooperate with the limiting seats to lock or unlock the support frames, thereby enabling the rotational molding mold to be positioned on the chassis along with the support frames or to be moved off the chassis as a whole.
[0006] The locking assembly includes a mounting base fixed on the chassis, a locking block hinged in the mounting base, and a locking cylinder with its two ends hinged to the mounting base and the locking block respectively. The locking block is pushed outward by the locking cylinder to lock the limiting seat or flip inward to release the limiting seat and unlock the limiting seat.
[0007] The chassis is a rectangular frame, and multiple reinforcing straight rods and reinforcing diagonal rods are connected and fixed inside the chassis.
[0008] The chassis has two sets of wheels at its bottom, located on the two long sides of a rectangle. Each set consists of multiple track wheels arranged sequentially along the long side. The track wheels in one set are connected to each other via axles. The chassis is equipped with a motor that drives the axles to rotate, thereby causing the multiple track wheels to roll synchronously.
[0009] Workstations are provided on each of the two long sides of the chassis.
[0010] The workstation consists of a standing platform and a U-shaped semi-enclosed guardrail located outside the standing platform, with the U-shaped opening of the guardrail facing the standing platform.
[0011] The bottom surface of the standing platform is equipped with several track wheels.
[0012] Each support frame is an upright cuboid frame, and each support frame has a positioning frame at its bottom, with the limiting seat set on the positioning frame.
[0013] The chassis is provided with multiple positioning blocks, and the support frame is positioned on the chassis by fitting the positioning frame with the multiple positioning blocks.
[0014] Each support frame has a mounting plate in the middle, and a speed reducer is provided on the mounting plate of one of the support frames. The speed reducer drives the support shaft to rotate, thereby driving the rotational molding mold to rotate synchronously.
[0015] Compared with existing technologies, this utility model mainly provides a transfer vehicle including a frame and a rotational molding mold. The frame consists of a chassis and several track wheels mounted on the bottom of the chassis. The rotational molding mold is rotatably supported on two support frames via support shafts at both ends, and each support frame has a limiting seat at its bottom. Locking components corresponding to the positions of the limiting seats are located at both ends of the chassis. Thus, by simply positioning the two support frames on the chassis and locking or unlocking them through the cooperation of the locking components and the limiting seats, the rotational molding mold can be positioned on the chassis along with the support frames or moved off the chassis as a whole. This ensures both the accuracy of the rotational molding mold's loading position on the frame and the safety of the transfer process, and also allows the transfer process to be better integrated into automated production equipment, such as seamlessly connecting with subsequent automated loading and unloading of the rotational molding mold. Furthermore, a workstation is added to the frame, allowing workers to easily load or unload products from the rotational molding mold, greatly improving operational convenience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a top-down 3D view of the chassis.
[0018] Figure 3 This is a three-dimensional view of the chassis from below.
[0019] Figure 4 This is a top-down 3D view of a rectangular frame.
[0020] Figure 5 This is a three-dimensional view of a rectangular frame viewed from below.
[0021] Figure 6 This is a schematic diagram of the locking assembly.
[0022] Figure 7 This is a schematic diagram of the rotational molding die.
[0023] Figure 8 for Figure 7 A three-dimensional image.
[0024] Figure 9 This is a schematic diagram of the support frame. Detailed Implementation
[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0026] like Figures 1-9As shown, 1. Frame, 11. Chassis, 111. Reinforcing straight rod, 112. Reinforcing diagonal rod, 113. Motor, 114. Positioning block, 12. Work platform, 121. Standing platform, 122. Guardrail, 13. Track wheel, 131. Wheel axle, 14. Locking assembly, 141. Mounting seat, 142. Locking block, 143. Locking cylinder, 2. Rotational molding mold, 21. Support shaft, 22. Support frame, 221. Positioning frame, 23. Limit seat, 24. Reducer, 25. Mounting plate.
[0027] A rotational molding mold transfer vehicle, such as Figure 1 As shown, this mainly relates to a vehicle carrier for transporting rotational molding molds. In actual use, this rotational molding mold transport vehicle can seamlessly connect with the subsequent automated loading and unloading of rotational molding molds, thereby better integrating the rotational molding mold transport process into the automated production equipment.
[0028] The rotational molding mold transfer vehicle includes a frame 1 and a rotational molding mold 2 mounted on the frame; wherein,
[0029] The frame 1 includes a chassis 11 and a plurality of track wheels 13 mounted on the bottom of the chassis. The chassis 11 is a rectangular frame, and multiple reinforcing straight rods 111 and reinforcing diagonal rods 112 are provided inside the chassis to improve the structural strength of the chassis 11. The plurality of track wheels are as follows: Figure 2 , Figure 3 As shown, two sets of wheels are provided at the bottom of the chassis 11. These two sets of wheels are located at the two long sides of the rectangle. Each set of wheels consists of multiple track wheels 13 arranged sequentially along the long side. In this embodiment, each set of wheels is designed with a total of 5 track wheels. Therefore, in actual use, the 5 track wheels can run on 5 ground tracks (not shown in the figure). Furthermore, the 5 track wheels of each set of wheels must be paired up to run on the same ground track. This also ensures that the frame 1 can run smoothly back and forth along the ground track.
[0030] Meanwhile, multiple track wheels in one of the wheelsets are interconnected via axle 131, and then on the chassis 11, specifically... Figure 2 The chassis shown has a motor 113 on the right end. The motor can drive the wheel axle 131 to rotate via a chain drive mechanism or other power transmission mechanism, thereby driving multiple track wheels 13 to roll synchronously. At this time, the auxiliary wheel set is the active drive wheel set, which can serve as the main power to drive the frame 1 to run on the ground track. The other set of multiple track wheels 13 does not need to be designed with wheel axles, so it serves as the secondary power.
[0031] The chassis 11 has work platforms 12 on its two long sides. The length of each work platform is usually equal to that of the chassis 11. Each work platform 12 consists of a standing platform 121 and a U-shaped semi-enclosed guardrail 122 located outside the standing platform. The standing platform 121 serves as the activity area for workers and can be used to facilitate the loading or unloading of products from the rotational molding mold, thereby greatly improving the ease of operation. The U-shaped opening of the guardrail 122 faces the standing platform and mainly serves a protective function to prevent workers from accidentally falling off the standing platform 121.
[0032] Of course, since the work platform 12 is located on the two long sides of the chassis 11, it is also relatively heavy. Therefore, several track wheels 13 need to be designed on the bottom surface of the work platform. The number of these track wheels should be equal to the number of track wheels that make up each set of wheels at the bottom of the frame 1. For example, in this embodiment, there are also 5 track wheels on the bottom surface of the work platform 12, which correspond to each other in pairs and run on the same ground track.
[0033] The rotational molding mold 2 is rotatably supported on two support frames 22 via support shafts 21 at both ends. Each support frame is an upright cuboid frame. Each support frame 22 has a square positioning frame 221 at its bottom. Correspondingly, multiple positioning blocks 114 are provided on the chassis 11. After the support frame 22 is fitted with the multiple positioning blocks 114 through the positioning frame 221, it can be positioned on the chassis 11.
[0034] Each support frame 22 is provided with a mounting plate 25 in the middle. One of the support frames is provided with a reducer 24 on the mounting plate. The reducer drives the support shaft 21 to rotate through a chain drive mechanism or other power transmission mechanism, thereby driving the rotational molding mold 2 to form synchronous rolling.
[0035] Each support frame 22 is provided with a limiting seat 23 at its bottom. Specifically, the limiting seat 23 is provided on the positioning frame 221, and the two ends of the chassis 11 are respectively provided with locking components 14 corresponding to the positions of the limiting seats 23. In this way, by simply positioning the two support frames 22 on the chassis 11 and locking or unlocking the support frames 22 through the cooperation of the locking components 24 and the limiting seats 23, the rotational molding mold 2 can be positioned on the chassis 11 as a whole or moved out of the chassis as a whole. This ensures the accuracy of the loading position of the rotational molding mold 2 on the frame 1 and the safety of the transfer process, and also allows the transfer process of the rotational molding mold 2 to be better integrated into the automated production equipment.
[0036] The locking assembly 14 includes a mounting base 141 fixed on the chassis 11. The mounting base has a hinged locking block 142 and a locking cylinder 143 with its two ends respectively hinged to the mounting base 141 and the locking block 142. The locking block 142 is pushed outward by the locking cylinder 143 to lock the limiting seat 23 or flip inward to release the limiting seat and unlock the limiting seat.
[0037] This implementation example Figure 7 , Figure 8 As shown, each support frame 22 has a symmetrically positioned limiting seat 23 on both sides of the positioning frame 221, and a limiting seat 23 on the outer side of the positioning frame. Correspondingly, three locking components 14 are also provided at the end of the chassis 11, corresponding to the positions of the limiting seats 23. Therefore, the stability of the support frame 22 can be ensured by fixing it at three points formed by the three positions.
[0038] The embodiments described above are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A rotational molding mold transfer vehicle, comprising a frame (1) and a rotational molding mold (2) mounted on the frame, characterized in that... The frame (1) consists of a chassis (11) and several track wheels (13) mounted on the bottom of the chassis. The rotational molding mold (2) is rotatably supported on two support frames (22) via support shafts (21) at both ends. Each support frame has a limiting seat (23) at its bottom. The two support frames (22) are positioned on the chassis (11). The two ends of the chassis are respectively provided with locking components (14) corresponding to the positions of the limiting seats (23). The locking components and the limiting seats cooperate to lock or unlock the support frames (22), thereby enabling the rotational molding mold (2) to be positioned on the chassis (11) along with the support frames (22) or to be moved out of the chassis (11) as a whole.
2. The rotational molding mold transfer vehicle according to claim 1, characterized in that... The locking assembly (14) includes a mounting base (141) fixed on the chassis (11), a locking block (142) hingedly mounted inside the mounting base, and a locking cylinder (143) with its two ends hinged to the mounting base and the locking block respectively. The locking block (142) is pushed outward by the locking cylinder (143) to lock the limiting seat (23) or flip inward to disengage from the limiting seat (23) and unlock the limiting seat.
3. The rotational molding mold transfer vehicle according to claim 1, characterized in that... The chassis (11) is a rectangular frame, and the chassis (11) is provided with multiple reinforcing straight rods (111) and reinforcing diagonal rods (112) that are connected and fixed.
4. A rotational molding mold transfer vehicle according to claim 3, characterized in that... The chassis (11) has two sets of wheels at the bottom, which are located on the two long sides of the rectangle. Each set of wheels consists of multiple track wheels (13) arranged sequentially along the long side. The multiple track wheels of one set of wheels are connected to each other via axle (131). The chassis (11) is equipped with a motor (113), which drives the axle (131) to rotate, thereby driving the multiple track wheels (13) to roll synchronously.
5. A rotational molding mold transfer vehicle according to claim 3, characterized in that... The chassis (11) is provided with work platforms (12) on its two long sides.
6. A rotational molding mold transfer vehicle according to claim 5, characterized in that... The workstation (12) consists of a standing platform (121) and a U-shaped semi-enclosed guardrail (122) located outside the standing platform, with the U-shaped opening of the guardrail facing the standing platform (121).
7. A rotational molding mold transfer vehicle according to claim 6, characterized in that... The bottom surface of the standing platform (121) is provided with several track wheels (13).
8. A rotational molding mold transfer vehicle according to claim 3, characterized in that... Each support frame (22) is an upright cuboid frame, and each support frame has a positioning frame (221) at its bottom. The limiting seat (23) is set on the positioning frame (221).
9. A rotational molding mold transfer vehicle according to claim 8, characterized in that... The chassis (11) is provided with multiple positioning blocks (114), and the support frame (22) is positioned on the chassis (11) by fitting the positioning frame (221) with the multiple positioning blocks (114).
10. A rotational molding mold transfer vehicle according to claim 1, characterized in that... Each of the support frames (22) is provided with a mounting plate (25) in the middle. One of the support frames is provided with a speed reducer (24) on the mounting plate, and the speed reducer drives the support shaft (21) to rotate, thereby driving the rotational molding die (2) to roll synchronously.