Chain transmission lifting frame
The chain-driven lifting frame design solves the problem of low efficiency in manual operation during sponge pad stacking, enabling fast, stable, and low-cost sponge pad stacking, which is suitable for small-scale production workshops.
Patent Information
- Application Number
- CN202520100123.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The traditional sponge pad stacking process relies on manual operation, resulting in high production costs and low efficiency. Furthermore, existing robotic arm equipment occupies a large space and is expensive, making it unsuitable for small-scale production workshops.
Design a chain-driven lifting frame, including a lifting device, a conveying platform and a lateral movement mechanism. It uses screw drive and chain sprocket mechanism to achieve fast and stable stacking of sponge pads, and push components and drive mechanism to achieve precise stacking of sponge pads.
It enables rapid and stable stacking of sponge pads, saves manual labor intensity, improves production efficiency, and has a simple structure and small footprint, making it suitable for small-scale production workshops.
Smart Images
Figure CN223646216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automation equipment technology, and in particular to a chain-driven lifting frame. Background Technology
[0002] Sponge is a type of polyurethane foam, specifically a flexible polyurethane foam. Due to its porous honeycomb structure, it possesses excellent softness, elasticity, water absorption, and water resistance, making it widely used in sofas, mattresses, clothing, and soft packaging industries. The production and processing of sponge involves sequential steps such as foaming, sanding, pressing, drying, and cutting to obtain the sponge pad. After production, the sponge pads need to be stacked and stored for subsequent packaging and shipping.
[0003] In the traditional process of palletizing foam pads, the produced foam pads are typically placed on a pallet, then another pallet is placed on top, and so on, repeating this process several times before the pallets are pushed to the next process step or stored aside. Because this is manual operation, it consumes a significant amount of manpower, increasing production costs. Furthermore, the operation is slow, inefficient, and prone to errors, leading to waste. While some technologies utilize intelligent robotic arms for palletizing, these are space-consuming and expensive, making them unsuitable for small-scale production workshops. Utility Model Content
[0004] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a chain-driven lifting frame, which has the advantages of simple structure, small space occupation, and high stability. It can not only quickly stack sponge pads, saving manual labor intensity, but also improve production efficiency.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A chain-driven lifting frame includes a lifting frame body, a conveying platform stacked on the lifting frame body, and a lifting device connecting the lifting frame body and the conveying platform. The conveying platform is used for conveying and stacking sponge pads, and is movably connected to the lifting device so that the conveying platform can move up and down along the Y-axis of the lifting frame body. The conveying platform is provided with a lateral moving mechanism for translating the sponge pads. The lateral moving mechanism includes a bidirectional linear slide rail, a support platform for supporting the sponge pads, and a pushing component for pushing the sponge pads out. The bidirectional linear slide rail is symmetrically arranged along the length direction of the conveying platform and is fixed to the top of the conveying platform. The support platform is fixedly connected to one end of the bidirectional linear slide rail, and a groove is provided on the support platform, in which a pulley is rotatably connected. The pushing component is slidably connected to the other end of the bidirectional linear slide rail.
[0007] Preferably, the pushing component includes a linear slider, a sliding plate, and a pushing cylinder. The linear slider is slidably connected to a bidirectional linear slide rail. The sliding plate has an L-shaped structure and is fixed to the top of the linear slider. The pushing cylinder is located on one side of the sliding plate and is connected to the sliding plate in a driving connection.
[0008] Preferably, the lifting device includes a screw drive mechanism for driving the conveyor platform to move up and down, a chain and sprocket mechanism for driving the screw drive mechanism, and a drive mechanism located between the chain and sprocket mechanisms. The screw drive mechanism is vertically symmetrically arranged on both sides of the lifting frame body, and the two ends of the screw drive mechanism are respectively connected to the upper and lower ends of the lifting frame body. The chain and sprocket mechanism is located on one side of the screw drive mechanism and is connected to it for transmission.
[0009] Preferably, the screw drive mechanism includes multiple equally spaced parallel drive screws distributed on the lifting frame body, nut seats threaded onto the drive screws, and a connecting plate for fixing the nut seats. The two ends of the drive screws pass through the conveying platform and extend to be fixed on the connecting plate. Multiple nut seats are provided, and the multiple nut seats are respectively fixedly connected to the output platform and the connecting plate. The connecting plate is fixed to the upper and lower ends of the lifting frame body by screws.
[0010] Preferably, the chain and sprocket mechanism includes a fixed plate, a rotating shaft, a transmission sprocket, and a transmission chain. The fixed plate is fixedly connected to the upper and lower ends of the lifting frame body, and a mounting seat is provided on the fixed plate. The two ends of the rotating shaft are rotatably connected to the mounting seat. Multiple transmission sprockets are provided, and the multiple transmission sprockets are respectively sleeved on both ends of the rotating shaft. The transmission chain is respectively sleeved between the transmission sprockets, and the transmission chain is rotatably connected to the transmission sprocket.
[0011] Preferably, the drive mechanism includes a drive motor, a drive wheel, and a driven wheel. The drive motor is located between the chain and sprocket mechanisms on both sides, and a reducer is drivenly connected to the output shaft of the drive motor. The drive wheel is rotatably connected to the output end of the reducer. The driven wheels are respectively disposed on the rotating shaft, and the driven wheels and the drive wheel are connected by a belt drive.
[0012] Preferably, the lifting frame body includes a base, support rods, and a top frame. The base is fixedly connected to the bottom end of the support rods, and the base has multiple mounting holes. At least four support rods are provided, and each support rod is equidistantly arranged at the four corners of the conveying platform. The top frame is a rectangular frame and is fixedly connected to the top end of the support rods.
[0013] In summary, the beneficial effects of this utility model are as follows:
[0014] This invention features a conveying platform mounted on the lifting frame body, with a lifting device between the conveying platform and the lifting frame body. This allows the conveying platform to move quickly and stably up and down along the lifting frame body, adjusting to a suitable height based on the stacking height. A lateral movement mechanism then quickly pushes the sponge pad to the appropriate stacking position, thereby increasing production efficiency and saving labor intensity. Furthermore, this lifting frame boasts advantages such as simple structure, small footprint, and high stability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the chain-driven lifting frame of this utility model;
[0016] Figure 2 yes Figure 1 Enlarged view of the structure at point a;
[0017] Figure 3 yes Figure 1 Enlarged view of the structure at point b in the middle;
[0018] Figure 4 This is a front view of the chain-driven lifting frame of this utility model;
[0019] Figure 5 This is a side view of the chain-driven lifting frame of this utility model;
[0020] Figure 6 This is a top view of the chain-driven lifting frame of this utility model.
[0021] Explanation of the reference numerals in the figure:
[0022] 1. Lifting frame body; 11. Base; 111. Mounting hole; 12. Support rod; 13. Top frame; 2. Conveying platform; 3. Lifting device; 31. Screw drive mechanism; 311. Drive screw; 312. Nut seat; 313. Connecting plate; 32. Chain and sprocket mechanism; 321. Fixing plate; 3211. Mounting seat; 322. Rotating shaft; 323. Drive sprocket; 324. Drive chain; 33. Drive mechanism; 331. Drive motor; 332. Driving wheel; 333. Driven wheel; 334. Reducer; 4. Lateral movement mechanism; 41. Bidirectional linear slide rail; 42. Bearing platform; 421. Groove; 422. Pulley; 43. Pushing assembly; 431. Linear slider; 432. Slide plate; 433. Pushing 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0024] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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, the above terms should not be construed as limitations on this utility model.
[0025] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0026] The following is in conjunction with the appendix Figure 1-6 The present invention will provide a more detailed description of an embodiment of a chain-driven lifting frame.
[0027] A chain-driven lifting frame, such as Figures 1 to 3As shown, the system includes a lifting frame body 1, a conveying platform 2 stacked on the lifting frame body 1, and a lifting device 3 connecting the lifting frame body 1 and the conveying platform 2. The conveying platform 2 is used to transport sponge pads for lifting and stacking, and the conveying platform 2 is movably connected to the lifting device 3 so that the conveying platform 2 can move up and down along the Y direction of the lifting frame body 1. The conveying platform 2 is provided with a lateral moving mechanism 4 for translating the sponge pads. The lateral moving mechanism 4 includes a bidirectional linear slide rail 41, a support platform 42 for supporting the sponge pads, and a pushing component 43 for pushing the sponge pads out. The bidirectional linear slide rail 41 is symmetrically arranged along the length direction of the conveying platform 2, and the bidirectional linear slide rail 41 is fixed to the top of the conveying platform 2. The support platform 42 is fixedly connected to one end of the bidirectional linear slide rail 41, and a groove 421 is provided on the support platform 42. A pulley 422 is rotatably connected in the groove 421. The pushing component 43 is slidably connected to the other end of the bidirectional linear slide rail 41.
[0028] Specifically, when a sponge pad is placed on the conveyor platform 2, in order to stack it neatly, a lateral moving mechanism 4 set on the conveyor platform 2 is used to push the sponge pad out, allowing it to be quickly pushed out after being raised and lowered to a suitable position and neatly stacked on another sponge pad. The lifting device 3 can control the lifting height of the output platform according to the stacking position, depending on the different stacking heights, thus facilitating the pushing component 43 to push the sponge pad located on the lateral moving mechanism 4 and accurately stack it on another sponge pad. The pushing component 43 includes a linear slider 431, a sliding plate 432, and a pushing cylinder 433. Block 431 is slidably connected to the bidirectional linear slide rail 41; slide plate 432 has an L-shaped structure and is fixed to the top of linear slider 431; push cylinder 433 is set on one side of slide plate 432 and is connected to slide plate 432 in transmission; when the conveying platform 2 receives the sponge pad, it mainly contacts the sponge pad through the bearing platform 42 and slide plate 432. After the sponge pad is raised and lowered to the predetermined height, the push cylinder will push slide plate 432 to move along bidirectional linear slide rail 41. At the same time, the pulley 422 on the bearing platform 42 synchronously drives the sponge pad to move, thereby quickly transferring the sponge pad from the conveying platform 2 to the appropriate stacking position.
[0029] In this embodiment, as Figure 4-6 As shown, the lifting device 3 includes a screw drive mechanism 31 for driving the conveying platform 2 to move up and down, a chain and sprocket mechanism 32 for driving the screw drive mechanism 31, and a drive mechanism 33 located between the chain and sprocket mechanisms 32. The screw drive mechanism 31 is vertically symmetrically arranged on both sides of the lifting frame body 1, and the two ends of the screw drive mechanism 31 are respectively connected to the upper and lower ends of the lifting frame body 1. The chain and sprocket mechanism 32 is located on one side of the screw drive mechanism 31 and is connected to it for transmission.
[0030] Specifically, the screw drive mechanism 31 includes multiple equally spaced parallel drive screws 311 on the lifting frame body 1, nut seats 312 threadedly connected to the drive screws 311, and a connecting plate 313 for fixing the nut seats 312. Both ends of the drive screws 311 pass through the conveying platform 2 and extend to be fixed on the connecting plate 313. Multiple nut seats 312 are provided, and each nut seat 312 is respectively fixedly connected to the output platform and the connecting plate 313. The connecting plate 313 is fixed to the upper and lower ends of the lifting frame body 1 by screws. The drive screws 311 are threaded rods used to guide and drive the conveying platform 2. During the lifting process of the conveying platform 2, the transmission is achieved through the nut seats 312 fixed between the conveying platform 2 and the drive screws 311. The nut seats 312 are threadedly connected to the drive screws 311, thereby driving the conveying platform 2 to move up and down along the drive screws 311. Compared to existing lifting structures, the screw drive method is more stable and smooth.
[0031] The chain and sprocket mechanism 32 includes a fixed plate 321, a rotating shaft 322, a transmission sprocket 323, and a transmission chain 324. The fixed plate 321 is fixedly connected to the upper and lower ends of the lifting frame body 1, and a mounting base 3211 is provided on the fixed plate 321. The two ends of the rotating shaft 322 are rotatably connected to the mounting base 3211. Multiple transmission sprockets 323 are provided, and multiple transmission sprockets 323 are respectively sleeved on both ends of the rotating shaft 322. The transmission chain 324 is respectively sleeved between the transmission sprockets 323, and the transmission chain 324 is rotatably connected to the transmission sprockets 323. When the conveying platform 2 is lifting, the cooperation between the transmission chain 324 and the transmission sprocket 323 ensures that the lifting process is smooth and stable, avoiding deviation that could lead to incorrect stacking of the sponge pads.
[0032] In this embodiment, as Figure 6 As shown, the drive mechanism 33 includes a drive motor 331, a drive wheel 332, and a driven wheel 333. The drive motor 331 is located between the chain and sprocket mechanisms 32 on both sides, and a reducer 334 is drivenly connected to the output shaft of the drive motor 331. The drive wheel 332 is rotatably connected to the output end of the reducer 334. The driven wheels 333 are respectively set on the rotating shaft 322, and the driven wheels 333 and the drive wheel 332 are connected by a belt drive.
[0033] Specifically, to save production costs and facilitate synchronous control of the rotation of the chain sprocket mechanisms 32 on both sides, a drive motor 331 is installed at the top of the lifting frame body 1. The drive motor 331 is located in the middle of the chain sprocket mechanisms 32 on both sides, and a reducer 334 is installed at the output end of the drive motor 331. The reducer 334 controls and adjusts the speed of the drive motor 331, and the rotational power is transmitted to the chain sprocket mechanism 32 through the driving wheel 332 and the driven wheel 333. This ensures that the rotational speed of the chain sprocket mechanisms 32 on both sides is consistent and the rotation is opposite. There are two driving wheels 332, which are respectively sleeved on the output shaft end of the reducer 334. The driven wheels 333 are respectively sleeved on the rotating shafts 322 on both sides. A belt is sleeved between the driving wheel 332 and the driven wheel 333. The rotation of the chain sprocket mechanisms 32 on both sides is controlled by the belt pulley transmission principle, thereby stably controlling the conveyor platform 2 to rise and fall along the screw drive mechanism 31.
[0034] In this embodiment, as Figure 5 As shown, the lifting frame body 1 includes a base 11, a support rod 12, and a top frame 13. The base 11 is fixedly connected to the bottom end of the support rod 12, and the base 11 has multiple mounting holes 111. At least four support rods 12 are provided, and each support rod 12 is equidistantly arranged at the four corners of the conveying platform 2. The top frame 13 is a rectangular frame, and the top frame 13 is fixedly connected to the top of the support rod 12.
[0035] Specifically, the lifting frame body 1 is made of alloy steel, which has strong hardness and support force, and can stably support the lifting platform 2. The base 11 can be stably installed in a suitable position through the mounting holes 111 and provides support for the entire support rod 12. The support rod 12 is fixedly connected to the four corners of the base 11. The support rod 12 is set perpendicular to the base 11, and there is a large space between two adjacent support frames to facilitate the installation of the screw drive mechanism 31, the chain sprocket mechanism 32 and the conveying platform 2. A rectangular top frame 13 is fixedly connected to the top of the support rod 12. The drive mechanism 33 can be installed on the top frame 13. The drive mechanism 33 provides power to the screw drive mechanism 31 and the chain sprocket mechanism 32, and can also stabilize the entire lifting frame body 1.
[0036] The working principle of this utility model:
[0037] When the sponge pad is conveyed to the conveyor platform 2 of this invention via the conveyor belt, the drive mechanism 33 drives the chain and sprocket mechanism 32 to control the lifting and lowering of the conveyor platform 2, so that the conveyor platform 2 slides down along the screw drive mechanism 31 to a position flush with the conveyor belt. Then the sponge pad is transferred to the transverse moving mechanism 4 via the conveyor belt, and begins to rise under the action of the screw drive mechanism 31 and the chain and sprocket mechanism 32. After rising to a suitable stacking height, it stops. The transverse moving mechanism 4 pushes the sponge pad off the conveyor platform 2 and stacks it on another sponge pad. Repeating the above steps completes the stacking of the sponge pads.
[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A chain-driven lifting frame, comprising a lifting frame body, a conveying platform stacked on the lifting frame body, and a lifting device connected between the lifting frame body and the conveying platform, wherein the conveying platform is used for conveying and stacking sponge pads, and the conveying platform is movably connected to the lifting device so that the conveying platform moves up and down along the Y direction of the lifting frame body; characterized in that, The conveying platform is equipped with a lateral moving mechanism for shifting the sponge pad. The lateral moving mechanism includes a bidirectional linear slide rail, a support platform for supporting the sponge pad, and a pushing component for pushing the sponge pad out. The bidirectional linear slide rail is symmetrically arranged along the length of the conveying platform and is fixed to the top of the conveying platform. The support platform is fixedly connected to one end of the bidirectional linear slide rail and has a groove with a pulley rotatably connected in the groove. The pushing component is slidably connected to the other end of the bidirectional linear slide rail.
2. The chain-driven lifting frame according to claim 1, characterized in that, The pushing component includes a linear slider, a sliding plate, and a pushing cylinder. The linear slider is slidably connected to a bidirectional linear slide rail. The sliding plate has an L-shaped structure and is fixed to the top of the linear slider. The pushing cylinder is located on one side of the sliding plate and is connected to the sliding plate in a driving connection.
3. The chain-driven lifting frame according to claim 1, characterized in that, The lifting device includes a screw drive mechanism for driving the conveyor platform to move up and down, a chain and sprocket mechanism for driving the screw drive mechanism, and a drive mechanism located between the chain and sprocket mechanisms. The screw drive mechanism is vertically symmetrically arranged on both sides of the lifting frame body, and the two ends of the screw drive mechanism are respectively connected to the upper and lower ends of the lifting frame body. The chain and sprocket mechanism is located on one side of the screw drive mechanism and is connected to it for transmission.
4. The chain-driven lifting frame according to claim 3, characterized in that, The lead screw transmission mechanism includes multiple lead screws evenly distributed parallel to each other on the lifting frame body, nut seats threaded to the lead screws, and connecting plates for fixing the nut seats. The two ends of the lead screws pass through the conveying platform and extend to be fixed on the connecting plate. Multiple nut seats are provided, and the multiple nut seats are respectively fixedly connected to the output platform and the connecting plate. The connecting plate is fixed to the upper and lower ends of the lifting frame body by screws.
5. The chain-driven lifting frame according to claim 4, characterized in that, The chain and sprocket mechanism includes a fixed plate, a rotating shaft, a transmission sprocket, and a transmission chain. The fixed plate is fixedly connected to the upper and lower ends of the lifting frame body, and a mounting base is provided on the fixed plate. The two ends of the rotating shaft are rotatably connected to the mounting base. Multiple transmission sprockets are provided, and the multiple transmission sprockets are respectively sleeved on the two ends of the rotating shaft. The transmission chain is respectively sleeved between the transmission sprockets, and the transmission chain is rotatably connected to the transmission sprocket.
6. The chain-driven lifting frame according to claim 5, characterized in that, The drive mechanism includes a drive motor, a drive wheel, and a driven wheel. The drive motor is located between the chain and sprocket mechanisms on both sides, and a reducer is driven to the output shaft of the drive motor. The drive wheel is rotatably connected to the output end of the reducer. The driven wheels are respectively set on the rotating shaft, and the driven wheels and the drive wheel are connected by a belt drive.
7. The chain-driven lifting frame according to claim 1, characterized in that, The lifting frame body includes a base, support rods, and a top frame. The base is fixedly connected to the bottom end of the support rods, and multiple mounting holes are provided on the base. At least four support rods are provided, and each support rod is equidistantly arranged at the four corners of the conveying platform. The top frame is a rectangular frame and is fixedly connected to the top end of the support rods.