A pearl wool bonding device
By combining the lifting frame and the conveying mechanism, precise hot air bonding of the corner protectors on both sides of long strip pearl cotton products is achieved, solving the problem of difficulty in precisely bonding long strip pearl cotton products in the existing technology, and improving the bonding quality and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU QILI PACKAGING CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
AI Technical Summary
Existing hot air bonding mechanisms are mainly suitable for bonding flat or large-area contact surfaces of pearl cotton, and it is difficult to perform precise corner bonding on the opposite sides of long strip pearl cotton products.
A pearl cotton bonding device was designed, including a lifting frame, a conveying mechanism, and hot air nozzles. The height of the lifting frame is adjusted by the lifting mechanism so that the pearl cotton body and the corner protectors are respectively positioned above and below the guide rod. The conveying mechanism transports them synchronously, and the hot air nozzles are used to bond the surface of the pearl cotton with hot air, so as to achieve precise bonding of the corner protectors on both sides of the pearl cotton.
This technology enables stable and precise bonding of the corner protectors on both sides of long strip pearl cotton products, improving the applicability of the device and the bonding quality.
Smart Images

Figure CN224528037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pearl cotton bonding machines, specifically to a pearl cotton bonding device. Background Technology
[0002] EPE foam is a new type of environmentally friendly packaging material. It is composed of countless independent air bubbles created through physical foaming of low-density polyethylene resin. This overcomes the shortcomings of ordinary foam, such as fragility, deformation, and poor resilience. It boasts numerous advantages, including water and moisture resistance, shock absorption, sound insulation, heat insulation, excellent plasticity, high toughness, recyclability, environmental friendliness, and strong impact resistance. It also has excellent chemical resistance, making it an ideal substitute for traditional packaging materials. EPE foam bonding involves using a heated iron plate to heat the foam and bond it together. Hot air bonding, on the other hand, uses hot air to melt the ends of the foam, bonding two pieces together.
[0003] Chinese Patent No. CN202221730006.0 discloses a hot air bonding mechanism for an EPE foam bonding machine. The device consists of a hot air blower, hot air nozzles, and a heat insulation plate. The hot air blower generates hot air at a suitable temperature, which is then sprayed onto the EPE foam bonding area through the hot air nozzles. The hot air melts the surface of the EPE foam, thereby achieving hot air bonding. The heat insulation plate can prevent the lower end of the feeding rack from being affected by the hot air and thus preventing damage to the EPE foam. The applicant discovered the following technical problems when implementing the above-mentioned technical solution: The aforementioned hot air bonding mechanism is mainly suitable for bonding flat or large-area contact surfaces of pearl cotton. When dealing with long strip pearl cotton products that require precise corner bonding on opposite sides, the device has obvious structural limitations.
[0004] Therefore, providing a pearl cotton bonding device capable of bonding the corner protectors on opposite sides of a long strip of pearl cotton is a problem that this utility model urgently needs to solve. Utility Model Content
[0005] To address the aforementioned technical problems, the purpose of this invention is to overcome the limitations of existing hot air bonding mechanisms, which are primarily suitable for bonding flat or large-area contact surfaces of pearl cotton. When dealing with long strips of pearl cotton products requiring precise corner bonding on opposite sides, these devices have significant structural limitations. Therefore, this invention provides a pearl cotton bonding device capable of bonding the corner protectors on opposite sides of long strips of pearl cotton.
[0006] To achieve the above objectives, this utility model provides a pearl cotton bonding device, which includes: a workbench, a lifting frame, a lifting mechanism, a first conveying mechanism, a second conveying mechanism, a hot air blower, and hot air nozzles. The lifting frame is movably mounted on the workbench via the lifting mechanism, and a first conveying mechanism is provided on one side of the lifting frame. A second conveying mechanism adapted to the first conveying mechanism is provided below the first conveying mechanism. A hot air blower is provided on one side of the lifting frame, and several first guide rods are horizontally arranged at intervals on one side of the hot air blower. A hot air nozzle is provided on the first guide rod closest to the lifting frame, facing the space between the first and second conveying mechanisms. The hot air nozzle is connected to the air outlet of the hot air blower.
[0007] Preferably, the workbench is provided with several second guide rods that penetrate the lifting frame.
[0008] Preferably, the lifting mechanism includes a first lead screw and a first rotary motor. The first lead screw is threaded through the lifting frame and is vertically rotatably mounted on the worktable via the first rotary motor.
[0009] Preferably, the first conveying mechanism includes: a first rotating shaft, a second rotating shaft, a synchronous pulley, a synchronous belt, and a drive assembly. The lifting frame is horizontally rotatably provided with the first rotating shaft and the second rotating shaft on opposite sides. The ends of the first rotating shaft and the second rotating shaft are coaxially provided with synchronous pulleys. The opposite ends of the synchronous belt are respectively sleeved on the corresponding synchronous pulleys. The drive assembly is provided on the lifting frame to drive the first rotating shaft or the second rotating shaft to rotate.
[0010] Preferably, the drive assembly includes: a second rotary motor, a drive gear, and a transmission gear. The transmission gear is coaxially arranged on the first or second rotating shaft. The drive gear meshes with the transmission gear and is rotatably mounted on the lifting frame via the second rotary motor.
[0011] Preferably, a limiting mechanism is also provided on one side of the workbench to limit the movement of the pearl cotton and the corner protectors; wherein, the limiting mechanism includes: a movable frame, a first limiting rod, a second limiting rod, and a reciprocating moving assembly. The movable frame is disposed on one side of the lifting frame and can be reciprocated toward the lifting frame via the reciprocating moving assembly. The movable frame is provided with a first limiting rod that can abut against the pearl cotton body and a second limiting rod that abuts against the pearl cotton corner protectors, arranged horizontally from top to bottom.
[0012] Preferably, the movable frame is provided with a limit slider, and the worktable is provided with a limit groove that matches the limit slider and faces the lifting frame.
[0013] Preferably, the reciprocating moving assembly includes a second lead screw and a third rotary motor, wherein the second lead screw is threaded through the moving frame and is horizontally rotatably mounted on the worktable by the third rotary motor.
[0014] Preferably, the first and second limit rods are rotatably equipped with several limit wheels at the end near the lifting frame.
[0015] According to the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This application adjusts the height of the lifting frame through a lifting mechanism to adapt it to the pearl cotton body, and then sets the pearl cotton corner protectors below each first guide rod and sets the pearl cotton body above each first guide rod, so that the pearl cotton corner protectors and the pearl cotton body are aligned. Then, the pearl cotton body and the pearl cotton corner protectors are simultaneously fed between the first conveying mechanism and the second conveying mechanism, and the first conveying mechanism and the second conveying mechanism are started simultaneously to transport the pearl cotton body and the pearl cotton corner protectors synchronously. At the same time, the hot air machine directs hot air towards the pearl cotton body through hot air nozzles. Hot air is blown out at the bonding point between the body and the pearl cotton corner protector, melting the surface of the pearl cotton and achieving hot air bonding. After bonding one side of the corner protector, the height of the lifting frame is adjusted by the lifting mechanism to match the pearl cotton body after bonding one side of the corner protector. Then, the pearl cotton body after bonding one side of the corner protector is placed above each first guide rod, and a corresponding pearl cotton corner protector is placed below each first guide rod. They are then transported synchronously by the first and second conveying mechanisms, while the hot air machine performs hot air bonding at the bonding point. This achieves bonding of the corner protectors on both sides of the pearl cotton body.
[0016] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional pearl cotton bonding device provided in a preferred embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional pearl cotton bonding device provided in a preferred embodiment of the present invention. Figure 2 ; Figure 3 This is a three-dimensional pearl cotton bonding device provided in a preferred embodiment of the present invention. Figure 3 ; Figure 4 This is a partial three-dimensional view of the pearl cotton bonding device provided in a preferred embodiment of the present invention. Figure 1 ; Figure 5 This is a partial three-dimensional view of the pearl cotton bonding device provided in a preferred embodiment of the present invention. Figure 2 .
[0018] Explanation of reference numerals in the attached drawings: 1-Workbench; 101-Second guide rod; 102-Limiting slide; 2-Lifting frame; 3-Lifting mechanism; 301-First lead screw; 302-First rotary motor; 4-First conveying mechanism; 401-First rotating shaft; 402-Second rotating shaft; 403-Synchronous pulley; 404-Synchronous belt; 405-Drive assembly; 40501-Second rotary motor; 40502-Drive gear; 40503-Transmission gear; 5-Second conveying mechanism; 6-Hot air blower; 601-First guide rod; 602-Hot air nozzle; 7-Limiting mechanism; 701-Moving frame; 70101-Limiting slider; 702-First limiting rod; 703-Second limiting rod; 704-Reciprocating moving assembly; 70401-Second lead screw; 70402-Third rotary motor; 705-Limiting wheel; 8-EPE foam body; 9-EPE foam corner protector. Detailed Implementation
[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0020] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. These are merely for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0021] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0023] Reference Figure 1 and Figure 3 A pearl cotton bonding device, the device comprising: a workbench 1, a lifting frame 2, a lifting mechanism 3, a first conveying mechanism 4, a second conveying mechanism 5, a hot air blower 6, and hot air nozzles 602. The lifting frame 2 is movably mounted on the workbench 1 via the lifting mechanism 3, and a first conveying mechanism 4 is provided on one side of the lifting frame 2. A second conveying mechanism 5 adapted to the first conveying mechanism 4 is provided below the first conveying mechanism 4. A hot air blower 6 is provided on one side of the lifting frame 2, and a plurality of first guide rods 601 are horizontally arranged at intervals on one side of the hot air blower 6. A hot air nozzle 602 is provided on the first guide rod 601 closest to the lifting frame 2, facing between the first conveying mechanism 4 and the second conveying mechanism 5. The hot air nozzle 602 is connected to the air outlet of the hot air blower 6.
[0024] This application adjusts the height of the lifting frame 2 using the lifting mechanism 3 to match the pearl cotton body 8. Then, pearl cotton corner protectors 9 are positioned below each first guide rod 601, and the pearl cotton body 8 is positioned above each first guide rod 601, aligning the pearl cotton corner protectors 9 with the pearl cotton body 8. The pearl cotton body 8 and pearl cotton corner protectors 9 are then simultaneously fed between the first conveying mechanism 4 and the second conveying mechanism 5. The first and second conveying mechanisms 4 and 5 are simultaneously activated to transport the pearl cotton body 8 and pearl cotton corner protectors 9 synchronously. Simultaneously, the hot air blower 6 directs hot air towards the pearl cotton body 8 and pearl cotton corner protectors 9 through hot air nozzles 602. Hot air is blown out at the joint to melt the surface of the pearl cotton, thus achieving hot air bonding. After the corner protectors on one side are bonded, the height of the lifting frame 2 is adjusted by the lifting mechanism 3 to match the pearl cotton body 8 after the corner protectors on one side are bonded. Then, the pearl cotton body 8 after the corner protectors on one side are bonded is placed above each first guide rod 601, and a pearl cotton corner protector 9 is placed below each first guide rod 601. Then, they are transported synchronously by the first conveying mechanism 4 and the second conveying mechanism 5. At the same time, the hot air blower 6 will perform hot air bonding at the bonding joints. Thus, the bonding of the corner protectors on both sides of the pearl cotton body 8 is achieved.
[0025] Reference Figure 2 and Figure 4 The workbench 1 is provided with several second guide rods 101 that pass through the lifting frame 2.
[0026] The lifting frame 2 of this application can reciprocate stably along the length of the second guide rod 101 via the lifting mechanism 3 without deviation.
[0027] Reference Figure 4 The lifting mechanism 3 includes a first lead screw 301 and a first rotary motor 302. The first lead screw 301 is threaded through the lifting frame 2 and is vertically and rotatably mounted on the worktable 1 via the first rotary motor 302.
[0028] This application starts the first rotary motor 302 to drive the first lead screw 301 to rotate, thereby driving the lifting frame 2 to move stably up and down along the length of the second guide rod 101 to match the pearl cotton body 8.
[0029] Reference Figure 3 and Figure 5The first conveying mechanism 4 includes a first rotating shaft 401, a second rotating shaft 402, a synchronous pulley 403, a synchronous belt 404, and a drive assembly 405. The lifting frame 2 is horizontally rotatably provided with the first rotating shaft 401 and the second rotating shaft 402 on opposite sides. The ends of the first rotating shaft 401 and the second rotating shaft 402 are coaxially provided with synchronous pulleys 403. The opposite ends of the synchronous belt 404 are respectively sleeved on the corresponding synchronous pulleys 403. The drive assembly 405 is provided on the lifting frame 2 to drive the first rotating shaft 401 or the second rotating shaft 402 to rotate.
[0030] The second conveying mechanism 5 of this application is a conveyor belt structure. By starting the drive assembly 405, the first rotating shaft 401 or the second rotating shaft 402 is driven to rotate, thereby driving the first rotating shaft 401 and the second rotating shaft 402 to rotate synchronously through the synchronous belt 404 and the synchronous pulley 403, so as to cooperate with the second conveying mechanism 5 to transport the pearl cotton body 8 and the pearl cotton corner protector 9 synchronously.
[0031] Reference Figure 4 The drive assembly 405 includes a second rotary motor 40501, a drive gear 40502, and a transmission gear 40503. The transmission gear 40503 is coaxially arranged on the first rotating shaft 401 or the second rotating shaft 402. The drive gear 40502 meshes with the transmission gear 40503 and is rotatably mounted on the lifting frame 2 via the second rotary motor 40501.
[0032] This application starts the second rotary motor 40501 to drive the drive gear 40502 to rotate, thereby driving the first rotating shaft 401 or the second rotating shaft 402 to rotate through the transmission gear 40503.
[0033] Reference Figure 3 The workbench 1 is also provided with a limiting mechanism 7 that can limit the movement of the pearl cotton and the corner protectors. The limiting mechanism 7 includes a movable frame 701, a first limiting rod 702, a second limiting rod 703, and a reciprocating moving assembly 704. The movable frame 701 is arranged on one side of the lifting frame 2 and can reciprocate toward the lifting frame 2 via the reciprocating moving assembly 704. The movable frame 701 is provided with a first limiting rod 702 that can abut against the pearl cotton body 8 and a second limiting rod 703 that can abut against the pearl cotton corner protectors 9, arranged horizontally from top to bottom.
[0034] This application activates the reciprocating moving component 704 to drive the moving frame 701 to reciprocate, thereby limiting the pearl cotton body 8 and the pearl cotton corner protector 9 through the first limiting rod 702 and the second limiting rod 703, so as to ensure that the pearl cotton body 8 and the pearl cotton corner protector 9 can move stably and synchronously, and ensure the bonding effect.
[0035] Reference Figure 4 The movable frame 701 is provided with a limiting slider 70101, and the worktable 1 is provided with a limiting groove 102 that is adapted to the limiting slider 70101 facing the lifting frame 2.
[0036] The movable frame 701 of this application can be stably and reciprocally mounted in the limiting slide groove 102 in the direction of the lifting frame 2 via the limiting slider 70101, without deviation.
[0037] Reference Figure 4 and Figure 5 The reciprocating moving assembly 704 includes a second lead screw 70401 and a third rotary motor 70402. The second lead screw 70401 is threaded through the moving frame 701 and is horizontally rotatably mounted on the worktable 1 via the third rotary motor 70402.
[0038] This application starts the third rotary motor 70402 to drive the second lead screw 70401 to rotate, thereby driving the moving frame 701 to move stably back and forth in the direction of the lifting frame 2.
[0039] Reference Figure 3 and Figure 5 The first limit rod 702 and the second limit rod 703 are rotatably equipped with several limit wheels 705 near the end of the lifting frame 2.
[0040] This application, through this design, ensures that the pearl cotton body 8 and the pearl cotton corner protectors 9 move stably and synchronously, guaranteeing the bonding quality.
[0041] In use, the device provided by this utility model adjusts the height of the lifting frame 2 via the lifting mechanism 3 to match the pearl cotton body 8. Then, pearl cotton corner protectors 9 are positioned below each first guide rod 601, and the pearl cotton body 8 is positioned above each first guide rod 601, aligning the pearl cotton corner protectors 9 with the pearl cotton body 8. The pearl cotton body 8 and pearl cotton corner protectors 9 are then simultaneously fed between the first conveying mechanism 4 and the second conveying mechanism 5. The first conveying mechanism 4 and the second conveying mechanism 5 are simultaneously activated to transport the pearl cotton body 8 and pearl cotton corner protectors 9 synchronously. Simultaneously, the hot air blower 6 directs hot air towards the pearl cotton body 8 and pearl cotton corner protectors 9 through hot air nozzles 602. Hot air is blown out from the bonding area of the pearl cotton corner protector 9, melting the surface of the pearl cotton and achieving hot air bonding. After bonding one side of the corner protector, the height of the lifting frame 2 is adjusted by the lifting mechanism 3 to match the pearl cotton body 8 after bonding one side of the corner protector. Then, the pearl cotton body 8 after bonding one side of the corner protector is placed above each first guide rod 601, and a pearl cotton corner protector 9 is placed below each first guide rod 601. Then, they are transported synchronously by the first conveying mechanism 4 and the second conveying mechanism 5. At the same time, the hot air blower 6 performs hot air bonding at their bonding area, thereby achieving bonding of the corner protectors on both sides of the pearl cotton body 8.
[0042] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0044] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A pearl cotton bonding device, characterized in that, The device includes: a workbench (1), a lifting frame (2), a lifting mechanism (3), a first conveying mechanism (4), a second conveying mechanism (5), a hot air blower (6), and a hot air nozzle (602). The lifting frame (2) is mounted on the workbench (1) via the lifting mechanism (3), and a first conveying mechanism (4) is provided on one side of the lifting frame (2). A second conveying mechanism (5) is provided below the first conveying mechanism (4) and is adapted to it. A hot air blower (6) is provided on one side of the lifting frame (2), and several first guide rods (601) are horizontally arranged at intervals on one side of the hot air blower (6). A hot air nozzle (602) is provided on the first guide rod (601) closest to the lifting frame (2) facing between the first conveying mechanism (4) and the second conveying mechanism (5). The hot air nozzle (602) is connected to the air outlet of the hot air blower (6).
2. The pearl cotton bonding device according to claim 1, characterized in that, The workbench (1) is provided with several second guide rods (101) that pass through the lifting frame (2).
3. The pearl cotton bonding device according to claim 2, characterized in that, The lifting mechanism (3) includes a first lead screw (301) and a first rotary motor (302). The first lead screw (301) is threaded through the lifting frame (2) and is vertically and rotatably mounted on the workbench (1) via the first rotary motor (302).
4. The pearl cotton bonding device according to claim 1, characterized in that, The first conveying mechanism (4) includes: a first rotating shaft (401), a second rotating shaft (402), a synchronous pulley (403), a synchronous belt (404), and a drive assembly (405). The lifting frame (2) is horizontally rotatably provided with the first rotating shaft (401) and the second rotating shaft (402) on opposite sides. The ends of the first rotating shaft (401) and the second rotating shaft (402) are coaxially provided with synchronous pulleys (403). The opposite ends of the synchronous belt (404) are respectively sleeved on the corresponding synchronous pulleys (403). The drive assembly (405) is provided on the lifting frame (2) for driving the first rotating shaft (401) or the second rotating shaft (402) to rotate.
5. The pearl cotton bonding device according to claim 4, characterized in that, The drive assembly (405) includes a second rotary motor (40501), a drive gear (40502), and a transmission gear (40503). The transmission gear (40503) is coaxially arranged on the first rotating shaft (401) or the second rotating shaft (402). The drive gear (40502) meshes with the transmission gear (40503) and is rotatably mounted on the lifting frame (2) via the second rotary motor (40501).
6. The pearl cotton bonding device according to claim 1, characterized in that, The workbench (1) is also equipped with a limiting mechanism (7) on one side, which can limit the movement of the pearl cotton and corner protectors; wherein, The limiting mechanism (7) includes: a movable frame (701), a first limiting rod (702), a second limiting rod (703), and a reciprocating moving assembly (704). The movable frame (701) is arranged on one side of the lifting frame (2) and can reciprocate toward the lifting frame (2) via the reciprocating moving assembly (704). The movable frame (701) is provided with a first limiting rod (702) that can abut against the pearl cotton body (8) and a second limiting rod (703) that abuts against the pearl cotton corner protector (9) in sequence from top to bottom.
7. The pearl cotton bonding device according to claim 6, characterized in that, The movable frame (701) is provided with a limit slider (70101), and the worktable (1) is provided with a limit groove (102) that is adapted to the limit slider (70101) facing the lifting frame (2).
8. The pearl cotton bonding device according to claim 7, characterized in that, The reciprocating moving assembly (704) includes a second lead screw (70401) and a third rotary motor (70402). The second lead screw (70401) is threaded through the moving frame (701) and is horizontally rotatably mounted on the worktable (1) by the third rotary motor (70402).
9. A pearl cotton bonding device according to claim 6, characterized in that, The first limit rod (702) and the second limit rod (703) are rotatably equipped with several limit wheels (705) at the end near the lifting frame (2).