Starch sack sealing device
By using a symmetrically arranged long box and conveyor belt, combined with a spacing and angle adjustment structure, the problem of starch sacks collapsing during traditional horizontal conveying is solved, achieving stable conveying and flexible sealing effects for sacks of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JIANTAI BIOLOGICAL TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional starch sack sealing devices are prone to causing sacks to collapse during horizontal transport, and they are difficult to adapt to sacks of different sizes, have poor adjustment flexibility, and have a limited range of applications.
The long boxes and conveyor belts are arranged in an inclined and symmetrical manner, and are equipped with a spacing and angle adjustment structure. The spacing and angle of the long boxes can be flexibly adjusted through screws and cylinders to meet the sealing needs of burlap sacks of different sizes and specifications.
This ensures stable transport of starch sacks, improves the applicability and flexibility of the device, avoids lodging problems, and adapts to the sealing needs of sacks of different sizes.
Smart Images

Figure CN224311372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starch packaging equipment, specifically a starch sack sealing device. Background Technology
[0002] A sack sealing device is a piece of equipment or tool used to seal the opening of a sack. The sack sealing process involves a robotic arm knitting the sack, and a conveyor belt is installed below the sack for transport.
[0003] Traditional conveying processes use horizontal contact conveying, which can easily cause burlap sacks to tip over horizontally, resulting in unsatisfactory sealing effects. Adding protective baffles is costly, and the flexibility of adjustment is poor when dealing with burlap sacks of different sizes, limiting its applicability. Utility Model Content
[0004] The purpose of this invention is to provide a starch bag sealing device that avoids the lodging problem that may occur during the traditional straight conveyor belt conveying process, and ensures the stability and reliability of the conveying process, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a starch sack sealing device, comprising a base frame, a sewing structure installed on the rear side of the base frame, and two conveying structures installed on the base frame. The conveying structures include long boxes and conveyor belts. The two long boxes are arranged at an incline and symmetrically, and the conveyor belts are installed inside the long boxes. A spacing adjustment structure is provided on one side wall of the base frame for adjusting the spacing between the other two long boxes. An angle adjustment structure is provided on both sides of the base frame to adjust the inclination angle of the long boxes.
[0006] Preferably, the stitching structure includes a U-shaped base and a stitching robot. The U-shaped base is slidably inserted into the rear side wall of the bottom frame. The rear side wall of the bottom frame has an elongated cavity. The U-shaped base is installed to the rear side wall of the bottom frame by several bolts.
[0007] Preferably, a number of support rods are fixedly connected to the bottom of the base frame.
[0008] Preferably, the spacing adjustment structure includes a lead screw and a sliding plate. Slide grooves are provided on both sides of the bottom frame. Two symmetrically arranged sliding plates are slidably connected inside the two slide grooves. A lead screw is rotatably provided in one of the slide grooves. One end of the lead screw rotates through one side of the slide groove and is fixedly connected to an L-shaped rocker arm at the through end. A threaded hole matching the lead screw is provided inside the sliding plate. The two threaded holes have opposite thread directions.
[0009] Preferably, the angle adjustment structure includes a support plate and a cylinder. The support plate is fixedly connected to the outer wall of the slide plate. The two support plates are rotatably connected to the corner of the long box via a support shaft. An inclined cylinder is provided on both sides of the long box. The output end of the cylinder is rotatably connected to the outer wall of the long box via a first pin, and the tail end of the cylinder is rotatably connected to the outer wall of the slide plate via a second pin.
[0010] Preferably, the width of the slide plate is greater than the width of the inside of the slide groove.
[0011] Compared with existing technologies, the advantages of this utility model are: stable conveying – the device uses two inclined and symmetrically arranged long boxes and conveyor belts, with starch sacks placed between the two conveyor belts, allowing them to move stably horizontally as the conveyor belts operate, avoiding the collapse problem that may occur during traditional straight conveyor belt conveying, and ensuring the stability and reliability of the conveying process; adjustable spacing – the device is equipped with a spacing adjustment structure, which allows for adjustment of the spacing between the two long boxes by rotating the screw, to accommodate starch sacks of different sizes, increasing the applicability and flexibility of the device; adjustable angle – the device is also equipped with an angle adjustment structure, which allows for angle adjustment of the long boxes by extending and retracting the cylinder, allowing operators to flexibly adjust the tilt angle of the long boxes according to actual needs, to adapt to the sealing requirements of starch sacks of different specifications and sizes, improving the practicality and adaptability of the sealing device. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;
[0014] Figure 3 This is a schematic diagram of the overall structure of this utility model from a side view.
[0015] Figure 4 for Figure 2 A magnified view of the structure at point A in the middle;
[0016] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0017] In the diagram: 1. Base frame; 101. Support rod; 2. Sewing structure; 201. U-shaped base; 202. Bolt; 203. Sewing robot; 204. Long cavity; 3. Conveying structure; 301. Long box; 302. Conveyor belt; 4. Spacing adjustment structure; 401. Lead screw; 402. Slide groove; 403. Slide plate; 404. L-shaped rocker arm; 5. Angle adjustment structure; 501. Support plate; 502. Support shaft; 503. First pin; 504. Cylinder; 505. Second 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] Please see Figure 1-5 The figure shows a starch sack sealing device, including a base frame 1, a sewing structure 2 installed on the rear side of the base frame 1, and two conveying structures 3 installed on the base frame 1. The conveying structure 3 includes a long box 301 and a conveyor belt 302. The two long boxes 301 are arranged at an angle and symmetrically. The conveyor belt 302 is arranged inside the long box 301. A spacing adjustment structure 4 is provided on one side wall of the base frame 1 for adjusting the spacing between the other two long boxes 301. Angle adjustment structures 5 are provided on both sides of the base frame 1 to adjust the tilt angle of its long boxes 301.
[0020] It is worth noting that after the device is started, the two conveying structures 3 begin to work, and the conveyor belts 302 inside them start to operate. The starch bags are placed between the conveyor belts 302 of the two inclined elongated boxes 301. Because the elongated boxes 301 are inclined and symmetrically arranged, the starch bags will move stably and horizontally with the operation of the conveyor belts 302. Instead of using the traditional straight conveyor belt, this prevents the bags from falling over during the movement. During the movement, the spacing adjustment structure 4 can adjust the distance between the two elongated boxes 301 as needed to accommodate starch bags of different sizes. At the same time, the angle adjustment structure 5 can adjust the tilt angle of the elongated boxes 301, which can be applied to starch bags of different sizes, increasing the applicability.
[0021] Please see Figure 1 , Figure 2 and Figure 3 The stitching structure 2 includes a U-shaped base 201 and a stitching robot 203. The U-shaped base 201 is slidably inserted into the rear side wall of the bottom frame 1. The rear side wall of the bottom frame 1 has an elongated cavity 204. The U-shaped base 201 is installed to the rear side wall of the bottom frame 1 by a number of bolts 202.
[0022] The connection between the U-shaped base 201 and the base frame 1 is made of bolts 202, which is not only easy to install, but also structurally stable. It can slightly adjust the horizontal position of the sewing robot 203, thereby optimizing the equipment position debugging layout process.
[0023] Please refer to Figure 1The bottom of the base frame 1 is fixedly connected to a number of support rods 101. The support rods 101 are evenly distributed around the bottom of the base frame 1 to ensure that the device is placed stably and to prevent shaking during operation. The bottom of the support rods 101 is provided with anti-slip pads to increase the friction with the ground and further improve the stability of the device.
[0024] See Figure 2 , Figure 3 and Figure 5 The spacing adjustment structure 4 includes a lead screw 401 and a sliding plate 403. Both sides of the bottom frame 1 are provided with sliding grooves 402. Two symmetrically arranged sliding plates 403 are slidably connected inside the two sliding grooves 402. The lead screw 401 is rotatably provided in one of the sliding grooves 402. One end of the lead screw 401 rotatably passes through one side of the sliding groove 402, and an L-shaped rocker arm 404 is fixedly connected to the passing end. The sliding plate 403 is provided with a matching threaded hole in the lead screw 401. The two threaded holes have opposite thread directions.
[0025] The lead screw 401 passes through one of the slide plates 403 and is threadedly connected to the slide plate 403. By rotating the lead screw 401, the two slide plates 403 can move towards each other or away from each other in the slide groove 402, thereby adjusting the distance between the two long boxes 301. One end of the lead screw 401 extends out of the bottom frame 1 and is fixedly connected to an adjustment knob for easy adjustment by the operator. The lead screw 401 has a self-locking function, which allows the slide plate 403 to be placed stably after adjustment.
[0026] See Figure 2 , Figure 3 , Figure 4 and Figure 5 The angle adjustment structure 5 includes a support plate 501 and a cylinder 504. The support plate 501 is fixedly connected to the outer wall of the slide plate 403. The two support plates 501 are rotatably connected to the corner of the long box 301 through the support shaft 502. The long box 301 is provided with inclined cylinders 504 on both sides. The output end of the cylinder 504 is rotatably connected to the outer wall of the long box 301 through the first pin 503. The tail end of the cylinder 504 is rotatably connected to the outer wall of the slide plate 403 through the second pin 505.
[0027] The extension and retraction of cylinder 504 can adjust the angle of the elongated box 301. Specifically, when the output end of cylinder 504 extends, it pushes the elongated box 301 to rotate around the support shaft 502, increasing the tilt angle of the elongated box 301. When the output end of cylinder 504 shortens, it pulls the elongated box 301 to rotate in the opposite direction around the support shaft 502, decreasing the tilt angle of the elongated box 301. This design allows operators to flexibly adjust the tilt angle of the elongated box 301 according to actual needs, adapting to the sealing requirements of starch sacks of different specifications and sizes, thus improving the practicality and adaptability of the sealing device.
[0028] The width of the slide plate 403 is greater than the internal width of the slide groove 402.
[0029] This design ensures that the slide plate 403 can extend out of the slide groove 402 for use, providing an extended fixing surface for the support plate 501.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A starch sack sealing device, comprising a bottom frame (1), a sewing structure (2) is installed on the back side of the bottom frame (1), and two conveying structures (3) are installed on the bottom frame (1), characterized in that, The conveying structure (3) includes a long box (301) and a conveyor belt (302). The two long boxes (301) are inclined and symmetrically arranged. The long box (301) is equipped with a conveyor belt (302). A spacing adjustment structure (4) is provided on one side wall of the bottom frame (1) for adjusting the spacing between the other two long boxes (301). Angle adjustment structures (5) are provided on both sides of the bottom frame (1) to adjust the tilt angle of its long boxes (301).
2. A starch sack sealing device according to claim 1, characterized in that: The stitching structure (2) includes a U-shaped base (201) and a stitching robot (203). The U-shaped base (201) is slidably inserted into the rear side wall of the bottom frame (1). The rear side wall of the bottom frame (1) has an elongated cavity (204). The U-shaped base (201) is installed to the rear side wall of the bottom frame (1) by several bolts (202).
3. A starch sack sealing device according to claim 1, characterized in that: The bottom frame (1) is fixedly connected to a number of support rods (101).
4. A starch sack sealing device according to claim 1, characterized in that: The spacing adjustment structure (4) includes a lead screw (401) and a sliding plate (403). The bottom frame (1) has two sliding grooves (402) on both sides. Two symmetrically arranged sliding plates (403) are slidably connected inside the two sliding grooves (402). The lead screw (401) is rotatably arranged in one of the sliding grooves (402). One end of the lead screw (401) rotates through one side of the sliding groove (402) and is fixedly connected to an L-shaped rocker arm (404) at the through end. The sliding plate (403) is provided with a matching threaded hole in the lead screw (401). The two threaded holes have opposite thread directions.
5. A starch sack sealing device according to claim 4, wherein: The angle adjustment structure (5) includes a support plate (501) and a cylinder (504). The support plate (501) is fixedly connected to the outer wall of the slide plate (403). The two support plates (501) are rotatably connected to the corner of the long box (301) through the support shaft (502). The long box (301) is provided with inclined cylinders (504) on both sides. The output end of the cylinder (504) is rotatably connected to the outer wall of the long box (301) through the first pin (503). The tail end of the cylinder (504) is rotatably connected to the outer wall of the slide plate (403) through the second pin (505).
6. A starch sack sealing device according to claim 4, wherein: The width of the slide (403) is greater than the internal width of the slide groove (402).