Paint packaging bag sealing and pressing device
By introducing a pressing structure and a flattening component into the sealing and pressing device for paint packaging bags, the problem of weak sealing caused by wrinkles on the surface of the packaging bags is solved, achieving full and smooth sealing and pressing, and improving the sealing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU FUBAILE DECORATION MATERIALS IND CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-02
AI Technical Summary
Existing paint packaging bag sealing and pressing devices are prone to causing wrinkles on the surface of the packaging bag when placed manually, resulting in insecure sealing and leakage.
The coating packaging bag sealing and pressing device includes a pressing structure and a flattening component. The mounting frame and flattening component are driven by a hydraulic cylinder. The packaging bag is pressed and flattened by rubber pressing blocks and supporting blocks to ensure the flatness of the sealing and pressing area.
This achieves a more thorough sealing and pressing, improves the flatness and quality of the packaging bag seal, and ensures the seal's strength.
Smart Images

Figure CN224312128U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of coating production technology, and in particular to a sealing and pressing device for coating packaging bags. Background Technology
[0002] In the paint manufacturing industry, the sealing quality of paint packaging bags is crucial, directly affecting the paint's shelf life, quality stability, and safety during transportation and use. Therefore, efficient and reliable sealing and pressing devices have become indispensable key equipment in the paint packaging process.
[0003] Some existing paint packaging bag sealing and pressing devices require manual placement of the paint packaging bag at the upper and lower hot press heads for sealing and pressing. However, when placed manually, wrinkles easily appear on the surface of the packaging bag, making it difficult to ensure the flatness of the packaging bag surface. This can easily lead to problems such as leakage and insecure sealing during the sealing and pressing process. Utility Model Content
[0004] To address the problems mentioned in the background art, this application provides a sealing and pressing device for paint packaging bags.
[0005] The sealing and pressing device for paint packaging bags provided in this application adopts the following technical solution:
[0006] A sealing and pressing device for paint packaging bags includes a base, a pressing platform on the top of the base, a lower hot pressing block on the pressing platform, a support frame on the top of the base, a pressing structure on the support frame, a groove on one side of the base located at the edge of the pressing platform, a lead screw rotatably mounted inside the groove, one end of the lead screw passing through the groove and connected to a first motor mounted on the side wall of the base, a movable seat adapted to be mounted on the lead screw, and a leveling component mounted on the top of the movable seat.
[0007] Preferably, the pressing structure includes a hydraulic cylinder mounted on the top of the support frame, the output end of the hydraulic cylinder is connected to a mounting frame, and the top of the mounting frame is provided with two guide rods, which slide in guide holes opened on the top of the support frame.
[0008] Preferably, the bottom of the mounting frame is provided with an upper heating block, and symmetrical fixing plates are provided on both sides of the bottom of the mounting frame. Several spring rods are provided on the bottom of the fixing plates, and a rubber pressure block is connected to one end of each spring rod.
[0009] Preferably, the leveling assembly includes a U-shaped frame mounted on the top of the movable seat 7, a support plate being provided on the top of the U-shaped frame, and a second motor being mounted on the top of the support plate at the middle position.
[0010] Preferably, the output end of the motor passes through a shaft hole opened on the support plate and is connected to a drive shaft. The other end of the drive shaft is connected to a bearing seat provided on the bottom surface of the U-shaped frame. A gear is also fixedly installed on the drive shaft.
[0011] Preferably, the outer side of the gear is engaged with two symmetrical rack plates, the two rack plates are slidably installed inside the U-shaped frame, and one end of the rack plate is also connected to a sliding seat.
[0012] Preferably, the sliding seat is slidably installed in two symmetrical grooves on the support plate, and a support block is fixedly installed on the top of the sliding seat.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. This utility model is equipped with a pressing structure. When the packaging bag is sealed and pressed, the hydraulic cylinder is driven to move the mounting frame downward. This causes the fixing plates on both sides to move the rubber pressing block connected to one end of the bottom spring rod downward to flatten the packaging bag, so that the sealing and pressing area remains flat. At the same time, the upper heating pressing block at the bottom of the mounting frame will fit against the lower heating pressing block at the top of the pressing table, and then the sealing and pressing work of the packaging bag is completed, so that the sealing and pressing is more thorough.
[0015] 2. This utility model is equipped with a flattening component. A first motor drives the movable seat to move the support plate, which in turn moves the sliding seat in the top groove of the support plate to the top of the pressing table and into the packaging bag. A second motor drives the gear mounted on the transmission shaft to rotate, which in turn moves the two rack plates in the U-shaped frame. The two rack plates then move the support block mounted on the top of the sliding seat connected to one end to move along the inside of the packaging bag to both sides, thereby flattening the packaging bag and keeping the sealing and pressing area flat. This further improves the flatness of the sealing and pressing of the packaging bag and enhances the quality of the sealing and pressing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the sealing and pressing device for the paint packaging bag in the embodiments of this application;
[0017] Figure 2 This is a schematic diagram of the bottom structure of the mounting bracket in an embodiment of this application;
[0018] Figure 3 This is a side view of the sealing and pressing device for the paint packaging bag in an embodiment of this application;
[0019] Figure 4 This is a cross-sectional view of the internal structure of the U-shaped frame at the bottom of the support plate in an embodiment of this application;
[0020] Figure 5 This is an enlarged schematic diagram of the structure at point A in the embodiment of this application.
[0021] Explanation of reference numerals in the attached drawings: 1. Base; 2. Pressing table; 3. Lower hot pressing block; 4. Support frame; 5. Lead screw; 6. First motor; 7. Movable seat; 8. Hydraulic cylinder; 9. Mounting frame; 10. Upper hot pressing block; 11. Fixing plate; 12. Spring rod; 13. Rubber pressing block; 14. U-shaped frame; 15. Support plate; 16. Second motor; 17. Gear; 18. Rack plate; 19. Sliding seat; 20. Support block. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.
[0023] This application discloses a sealing and pressing device for paint packaging bags, including a base 1, a pressing platform 2 on the top of the base 1, a lower hot pressing block 3 on the pressing platform 2, a support frame 4 on the top of the base 1, a pressing structure on the support frame 4, a groove on one side of the base 1 located at the edge of the pressing platform 2, a lead screw 5 rotatably installed inside the groove, one end of the lead screw 5 passing through the groove and connected to a first motor 6 provided on the side wall of the base 1, a movable seat 7 adapted to be installed on the lead screw 5, and a flattening component installed on the top of the movable seat 7.
[0024] refer to Figure 1 and Figure 2 The pressing structure includes a hydraulic cylinder 8 mounted on the top of the support frame 4. The output end of the hydraulic cylinder 8 is connected to a mounting frame 9. The top of the mounting frame 9 is provided with two guide rods, which slide in guide holes opened on the top of the support frame 4. The bottom of the mounting frame 9 is provided with an upper heating block 10. Symmetrical fixing plates 11 are provided on both sides of the bottom of the mounting frame 9. Several spring rods 12 are provided on the bottom of the fixing plates 11 respectively. One end of the spring rod 12 is connected to a rubber pressing block 13. More specifically, when sealing and pressing the packaging bag, the hydraulic cylinder 8 on the top of the support frame 4 is driven, causing the hydraulic cylinder 8 to drive the mounting frame 9 connected to the output end to move downward. This causes the fixing plates 11 on both sides of the mounting frame 9 to drive the rubber pressing block 13 connected to one end of the bottom spring rod 12 to move downward and flatten the packaging bag, keeping the sealing and pressing area flat. At the same time, the upper heating block 10 at the bottom of the mounting frame 9 will fit against the lower heating block 3 on the top of the pressing table 2, thus completing the sealing and pressing work of the packaging bag, making the sealing and pressing more thorough.
[0025] refer to Figure 3 , Figure 4 and Figure 5The leveling assembly includes a U-shaped frame 14 mounted on the top of the movable seat 7. A support plate 15 is provided on the top of the U-shaped frame 14. A second motor 16 is installed at the middle position of the top of the support plate 15. The output end of the second motor 16 passes through a shaft hole opened on the support plate 15 and is connected to a drive shaft. The other end of the drive shaft is connected to a bearing seat provided on the inner bottom surface of the U-shaped frame 14. A gear 17 is also fixedly installed on the drive shaft. Two symmetrical rack plates 18 mesh with the outer side of the gear 17. The two rack plates 18 are slidably installed inside the U-shaped frame 14, and one end of the rack plates 18 is also connected to a sliding seat 19. The sliding seat 19 is slidably installed in two symmetrical sliding grooves opened on the support plate 15. A support block 20 is also fixedly installed on the top of the sliding seat 19. More specifically... The process involves several steps. First, the first motor 6 drives the lead screw 5 to rotate, causing the movable seat 7 to move the support plate 15 at the top of the U-shaped frame 14 back and forth. This causes the sliding seat 19 in the top groove of the support plate 15 to move the top-fixed support block 20 to the top of the pressing table 2 and into the inside of the packaging bag. Then, the second motor 16 drives the gear 17 mounted on the transmission shaft connected to the output end to rotate, causing the two rack plates 18 inside the U-shaped frame 14 to move. This causes the two rack plates 18 to move the support block 20 mounted on the top of the sliding seat 19 connected to one end to move along the inside of the packaging bag to both sides, thereby flattening the packaging bag and keeping the sealing and pressing area flat. This further improves the flatness of the packaging bag sealing and pressing and enhances the quality of the sealing and pressing.
[0026] The principle of the sealing and pressing device for paint packaging bags in this embodiment is as follows: In use, the packaging bag is first placed on top of the pressing table 2. The first motor 6 is driven, causing the movable seat 7 to move the support plate 15 at the top of the U-shaped frame 14 towards the pressing table 2. The two sliding seats 19 in the groove at the top of the support plate 15 move the support block 20 to the top of the pressing table 2 and insert it into the packaging bag. Then, the second motor 16 is driven, causing the gear 17 mounted on the transmission shaft to rotate, driving the two rack plates 18 to move. This causes the two rack plates 18 to move the support block 20 along the inside of the packaging belt to both sides, thereby flattening the packaging bag. To ensure the sealing and pressing area remains flat, the hydraulic cylinder 8 drives the mounting frame 9 downwards. The fixing plates 11 on both sides of the mounting frame 9 drive the rubber pressure block 13 connected to one end of the bottom spring rod 12 downwards to flatten the packaging bag, keeping the sealing and pressing area flat. At this time, the first motor 6 is driven, causing the movable seat 7 to move the support plate 15 away from the pressing table 2, so that the support block 20 is detached from the packaging bag. Then, the hydraulic cylinder 8 is driven again, so that the upper heating pressure block 10 at the bottom of the mounting frame 9 is in contact with the lower heating pressure block 3 at the top of the pressing table 2, thus completing the sealing and pressing work on the packaging bag, making the sealing and pressing more thorough.
[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A sealing and pressing device for paint packaging bags, characterized in that: The base (1) includes a base (1), a pressing platform (2) is provided on the top of the base (1), a lower hot pressing block (3) is provided on the pressing platform (2), a support frame (4) is also provided on the top of the base (1), a pressing structure is provided on the support frame (4), a groove is also provided on one side of the base (1) at the edge of the pressing platform (2), a lead screw (5) is rotatably installed inside the groove, one end of the lead screw (5) passes through the groove and is connected to a first motor (6) provided on the side wall of the base (1), a movable seat (7) is adapted to be installed on the lead screw (5), and a flattening component is installed on the top of the movable seat (7).
2. The sealing and pressing device for paint packaging bags according to claim 1, characterized in that: The pressing structure includes a hydraulic cylinder (8) installed on the top of the support frame (4). The output end of the hydraulic cylinder (8) is connected to a mounting frame (9). The top of the mounting frame (9) is provided with two guide rods, which slide in the guide holes opened on the top of the support frame (4).
3. The sealing and pressing device for paint packaging bags according to claim 2, characterized in that: The mounting bracket (9) has an upper heating block (10) at its bottom. The mounting bracket (9) has symmetrical fixing plates (11) on both sides at its bottom. The fixing plates (11) have several spring rods (12) at their bottoms. One end of each spring rod (12) is connected to a rubber pressure block (13).
4. The sealing and pressing device for paint packaging bags according to claim 1, characterized in that: The flattening assembly includes a U-shaped frame (14) mounted on the top of the movable seat (7), a support plate (15) is provided on the top of the U-shaped frame (14), and a second motor (16) is installed on the top of the support plate (15) at the middle position.
5. The sealing and pressing device for paint packaging bags according to claim 4, characterized in that: The output end of the second motor (16) passes through the shaft hole opened on the support plate (15) and is connected to a drive shaft. The other end of the drive shaft is connected to the bearing seat provided on the bottom surface of the U-shaped frame (14). A gear (17) is also fixedly installed on the drive shaft.
6. The sealing and pressing device for paint packaging bags according to claim 5, characterized in that: Two symmetrical rack plates (18) mesh on the outer side of the gear (17). The two rack plates (18) are slidably installed inside the U-shaped frame (14), and one end of the rack plate (18) is also connected to a sliding seat (19).
7. The sealing and pressing device for paint packaging bags according to claim 6, characterized in that: The sliding seat (19) is slidably installed in two symmetrical grooves on the support plate (15), and a support block (20) is fixedly installed on the top of the sliding seat (19).