Trace element water-soluble fertilizer production sealing device
By using a pitch-adjusting structure that links a bidirectional threaded rod with an adjusting motor and a synchronous belt drive, the problem of cumbersome adjustment of the heat-sealing wheel spacing is solved, enabling rapid and precise adjustment and synchronization of the sealing device, thereby improving sealing efficiency and sealing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-14
AI Technical Summary
In the current production of micronutrient water-soluble fertilizers, the adjustment of the heat sealing wheel spacing in the heat sealing device is cumbersome and it is difficult to achieve continuous stepless adjustment, resulting in unstable sealing quality and inability to adapt to changing packaging specifications.
The adjustable structure, which uses a two-way threaded rod linked to an adjusting motor, combined with synchronous belt drive and cross rod structure, enables rapid and precise adjustment of the heat sealing wheel spacing, ensuring sealing synchronization and straightness accuracy. The rollers cooperate with the bottom plate limit guide groove to reduce the risk of deviation.
It enables rapid and precise adjustment of the heat sealing wheel spacing, adapts to different packaging bag specifications, improves sealing efficiency and sealing quality, reduces equipment complexity, and facilitates maintenance.
Smart Images

Figure CN224117677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machinery technology, specifically to a sealing device for the production of trace element water-soluble fertilizers. Background Technology
[0002] In the production of powdered fertilizers (such as water-soluble fertilizers), the heat-sealing process of packaging bags requires high sealing performance and efficiency. Traditional heat-sealing devices mostly use heat-sealing wheels with fixed spacing, requiring manual adjustment of the heat-sealing position to accommodate different packaging bag sizes. This results in cumbersome operation and poor synchronization. In addition, the existing equipment relies on mechanical locking or segmented positioning to adjust the spacing of the heat-sealing wheels, making it difficult to achieve continuous stepless adjustment and easily leading to misalignment or uneven heat sealing.
[0003] In existing technologies, manually adjusting the spacing between heat-sealing wheels is time-consuming and affects production continuity. Multiple heat-sealing wheel drives rely on a single motor drive, which is prone to inconsistent speeds due to mechanical errors, resulting in unstable sealing quality. Fixed guide grooves or graded adjustments cannot adapt to complex and varied packaging specifications, leading to inconsistent sealing effects. Utility Model Content
[0004] In view of the problems in related technologies, this utility model proposes a sealing device for the production of trace element water-soluble fertilizers to overcome the above-mentioned technical problems existing in the existing related technologies.
[0005] Therefore, the specific technical solution adopted by this utility model is as follows:
[0006] A sealing device for producing trace element water-soluble fertilizer includes a rotating structure, a transmission structure connected between the rotating structures, an adjustable spacing structure connected to the rotating structure, a fixed support connected to the adjustable spacing structure, and a base plate at the bottom of the rotating structure. The rotating structure achieves automated heat sealing spacing adjustment through the transmission structure and the adjustable spacing structure, and the rotating structure has a synchronous transmission and heat sealing function.
[0007] Furthermore, the rotating structure includes a drive motor, a first synchronous pulley, a synchronous belt, a second synchronous pulley, a transmission pulley, a heat-sealing pulley, a support rod, a roller, and a docking shaft. The drive end of the drive motor is connected to the first synchronous pulley, and a synchronous belt is connected to the first synchronous pulley. The first synchronous pulley is connected to the second synchronous pulley via the synchronous belt. The second synchronous pulley is fixedly connected to the transmission pulley, and the transmission pulley is fixedly connected to the heat-sealing pulley. The heat-sealing pulley is rotatably connected to a power source. The bottom end of the heat-sealing pulley is rotatably connected to the support rod, and the bottom end of the support rod is rotatably connected to the roller. The top end of the drive motor is provided with a docking shaft, and a sliding block is fixedly provided between the bottom end of the docking shaft and the top end of the drive motor. The roller contacts the base plate, and the base plate is provided with a limiting guide groove that matches the roller.
[0008] Furthermore, the adjustable structure includes a guide groove, a threaded block, a bidirectional threaded rod, an adjusting motor, and a guide rod. The threaded block is slidably connected in the guide groove, and the threaded block is threadedly connected to the bidirectional threaded rod. The bidirectional threaded rod rotates through the guide groove at a fixed point. One end of the bidirectional threaded rod is connected to the adjusting motor, and one side of the threaded block is fixedly connected to the guide rod. The guide rod is slidably connected to the sliding block.
[0009] Furthermore, the transmission structure includes a cross rod, a transmission rod, and a rotating pin. The end of the cross rod is rotatably connected to the transmission rod, the transmission rod is fixedly connected to the rotating pin, and the rotating pin is rotatably connected to the mating shaft.
[0010] The beneficial effects of this utility model are as follows: the linkage between the bidirectional threaded rod and the adjusting motor enables rapid and precise adjustment of the heat sealing wheel spacing, adapting to different packaging bag specifications; the synchronous belt drive and the cross rod structure work together to avoid sealing misalignment; the roller and the bottom plate limit guide groove cooperate to limit the movement trajectory of the heat sealing wheel and reduce the risk of deviation; the rotating power supply is directly integrated into the heat sealing wheel to reduce circuit interference; it supports continuous rolling heat sealing and improves packaging efficiency. The integrated design of the spacing adjustment structure and the transmission structure reduces equipment complexity and facilitates maintenance. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the main structure of a sealing device for producing trace element water-soluble fertilizer according to an embodiment of the present utility model;
[0013] Figure 2 This is a schematic diagram of the transmission structure of a sealing device for producing trace element water-soluble fertilizer according to an embodiment of the present utility model.
[0014] Figure 3 This is a schematic diagram of the rotating structure of a sealing device for producing trace element water-soluble fertilizer according to an embodiment of the present utility model;
[0015] Figure 4 This is a schematic diagram of the adjustable distance structure of a sealing device for producing water-soluble fertilizers containing trace elements, according to an embodiment of the present invention.
[0016] In the picture:
[0017] 1. Rotating structure; 101. Drive motor; 102. First synchronous pulley; 103. Synchronous belt; 104. Second synchronous pulley; 105. Transmission wheel; 106. Heat-sealing wheel; 107. Support rod; 108. Roller; 109. Connecting shaft; 2. Adjustable structure; 201. Guide groove; 202. Threaded block; 203. Bidirectional threaded rod; 204. Adjusting motor; 205. Guide rod; 3. Fixed bracket; 4. Base plate; 5. Transmission structure; 501. Cross rod; 502. Transmission rod; 503. Rotating pin. Detailed Implementation
[0018] 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.
[0019] According to an embodiment of the present invention, a sealing device for the production of trace element water-soluble fertilizer is provided.
[0020] like Figure 1-4 As shown, the sealing device for producing water-soluble fertilizers containing trace elements according to an embodiment of the present invention includes a rotating structure 1, a transmission structure 5 connected between the rotating structures 1, a pitch adjustment structure 2 connected to the rotating structure 1, a fixed support 3 connected to the pitch adjustment structure 2, a base plate 4 at the bottom of the rotating structure 1, and the rotating structure 1 realizes automatic heat sealing pitch adjustment through the transmission structure 5 and the pitch adjustment structure 2. The rotating structure 1 has a synchronous function of transmission and heat sealing.
[0021] The rotating structure 1 includes a drive motor 101, a first synchronous pulley 102, a synchronous belt 103, a second synchronous pulley 104, a transmission wheel 105, a heat-sealing wheel 106, a support rod 107, a roller 108, and a docking shaft 109. The drive end of the drive motor 101 is connected to the first synchronous pulley 102. The synchronous belt 103 is connected to the first synchronous pulley 102. The first synchronous pulley 102 is connected to the second synchronous pulley 104 via the synchronous belt 103. The transmission wheel 105 is fixedly connected to the second synchronous pulley 104. The heat-sealing wheel 106 is fixedly connected to the transmission wheel 105. The heat-sealing wheel 106 is rotatably connected to a rotating power source. The bottom end of the heat-sealing wheel 106 is rotatably connected to the support rod 107. The end is rotatably connected to a roller 108. The top of the drive motor 101 is provided with a docking shaft 109. A sliding block is fixed between the bottom end of the docking shaft 109 and the top end of the drive motor 101. The roller 108 contacts the base plate 4. The base plate 4 is provided with a limiting guide groove that matches the roller 108. The core power comes from the drive motor 101. The transmission wheel 105 and the heat sealing wheel 106 rotate synchronously through the first synchronous wheel 102, the synchronous belt 103 and the second synchronous wheel 104. The heat sealing wheel 106 is connected to a rotating power source to achieve heat sealing of the bag opening of the water-soluble fertilizer packaging bag. The support rod 107 and the roller 108 roll in the limiting guide groove of the base plate 4, which limits the deflection trajectory of the rotating structure 1.
[0022] The adjustable spacing structure 2 includes a guide groove 201, a threaded block 202, a bidirectional threaded rod 203, an adjusting motor 204, and a guide rod 205. The threaded block 202 is slidably connected in the guide groove 201, and the bidirectional threaded rod 203 is threadedly connected to the threaded block 202. The bidirectional threaded rod 203 rotates through the guide groove 201 at a fixed point. One end of the bidirectional threaded rod 203 is connected to the adjusting motor 204. The guide rod 205 is fixedly connected to one side of the threaded block 202. The guide rod 205 is slidably connected to a sliding block. The adjusting motor 204 drives the bidirectional threaded rod 203 to rotate, causing the two threaded blocks 202 in the same group to slide towards each other in the guide groove 201. The guide rod 205 moves with the threaded block. The position of the drive motor 101 is adjusted by the sliding block, and the spacing between the heat sealing wheels 106 is controlled in conjunction with the transmission structure 5.
[0023] The transmission structure 5 includes a cross rod 501, a transmission rod 502, and a rotating pin 503. The end of the cross rod 501 is rotatably connected to the transmission rod 502, and the transmission rod 502 is fixedly connected to the rotating pin 503. The rotating pin 503 is rotatably connected to the docking shaft 109. The transmission rod 502 is connected to the docking shaft 109 through the rotating pin 503. By adjusting the spacing of the sliding blocks in the rotation structure 1, and by changing the included angle when the cross rod 501 rotates, the spacing between the two sliding blocks on the same guide rod 205 is adjusted, thus coordinating the synchronicity of multiple rotation structures 1.
[0024] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0025] With the help of the above-mentioned technical solution of this utility model, the drive motor 101 drives the heat sealing wheel 106 to rotate through the synchronous belt 103, and simultaneously performs rolling heat sealing on the packaging bag. The adjustment motor 204 drives the bidirectional threaded rod 203 to rotate, which in turn moves the threaded block 202 and the guide rod 205. The distance between the heat sealing wheels 106 is adjusted by the sliding block. The transmission rod 502 and the cross rod 501 automatically adjust the included angle as the distance changes, coordinating the rotation angle of multiple heat sealing wheels 106 to ensure synchronization. The support rod 107 and the roller 108 roll in the limiting guide groove of the base plate 4, constraining the movement path of the heat sealing wheel and ensuring the straightness accuracy of the heat sealing.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealing device for the production of trace element water-soluble fertilizers, characterized in that, It includes a rotating structure (1), a transmission structure (5) connecting the rotating structures (1), a pitch adjustment structure (2) being connected to the rotating structure (1), a fixed bracket (3) being connected to the pitch adjustment structure (2), a base plate (4) being provided at the bottom of the rotating structure (1), and the rotating structure (1) realizing automatic heat sealing pitch adjustment through the transmission structure (5) and the pitch adjustment structure (2). The rotating structure (1) has a synchronous function of transmission heat sealing.
2. The sealing device for producing trace element water-soluble fertilizer according to claim 1, characterized in that, The rotating structure (1) includes a drive motor (101), a first synchronous pulley (102), a synchronous belt (103), a second synchronous pulley (104), a transmission wheel (105), a heat-sealing wheel (106), a support rod (107), a roller (108), and a docking shaft (109). The drive end of the drive motor (101) is connected to the first synchronous pulley (102).
3. The sealing device for producing trace element water-soluble fertilizer according to claim 2, characterized in that, A timing belt (103) is connected to the first timing pulley (102), and a second timing pulley (104) is connected to the first timing pulley (102) via the timing belt (103). A transmission wheel (105) is fixedly connected to the second timing pulley (104).
4. The sealing device for producing trace element water-soluble fertilizer according to claim 3, characterized in that, The transmission wheel (105) is fixedly connected to the heat sealing wheel (106), the heat sealing wheel (106) is rotatably connected to the rotary power source, the bottom end of the heat sealing wheel (106) is rotatably connected to the support rod (107), the bottom end of the support rod (107) is rotatably connected to the roller (108), and the top end of the drive motor (101) is provided with a docking shaft (109).
5. A sealing device for the production of trace element water-soluble fertilizers according to claim 4, characterized in that, A sliding block is fixed between the bottom end of the docking shaft (109) and the top end of the drive motor (101). The roller (108) contacts the base plate (4), and the base plate (4) is provided with a limiting guide groove that matches the roller (108).
6. A sealing device for the production of trace element water-soluble fertilizers according to claim 5, characterized in that, The adjustable structure (2) includes a guide groove (201), a threaded block (202), a bidirectional threaded rod (203), an adjusting motor (204), and a guide rod (205). The threaded block (202) is slidably connected in the guide groove (201), and the bidirectional threaded rod (203) is threadedly connected to the threaded block (202). The bidirectional threaded rod (203) rotates through the guide groove (201) at a fixed point.
7. A sealing device for the production of trace element water-soluble fertilizers according to claim 6, characterized in that, One end of the bidirectional threaded rod (203) is connected to an adjusting motor (204), and a guide rod (205) is fixedly connected to one side of the threaded block (202). The guide rod (205) is slidably connected to the sliding block.
8. A sealing device for the production of trace element water-soluble fertilizers according to claim 7, characterized in that, The transmission structure (5) includes a cross rod (501), a transmission rod (502), and a rotating pin (503). The end of the cross rod (501) is rotatably connected to the transmission rod (502), and the transmission rod (502) is fixedly connected to the rotating pin (503). The rotating pin (503) is rotatably connected to the docking shaft (109).