Automatic seaming machine
By designing the upper and lower molds of the automatic seaming machine to work together, synchronous seaming is achieved on both sides of the duct. Debris is removed by a cleaning spray pipe, which solves the problems of low degree of freedom and debris residue in the duct seaming machine, and improves the stability and cleanliness of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HAIRITUO MACHINERY CO LTD
- Filing Date
- 2025-05-24
- Publication Date
- 2026-04-28
AI Technical Summary
Existing duct seaming machines have low degrees of freedom and seaming efficiency, cannot seam both sides of the duct simultaneously, and lack a cleaning mechanism to remove residual debris after long-term use.
An automatic seaming machine was designed, which uses an upper and lower mold to seam both sides of the air duct, and uses a return spring to automatically open the mold, and adds a cleaning nozzle to clean the inside and collect debris.
It improves the stability and practicality of the duct joint, ensures synchronous jointing on both sides of the duct, and the cleaning mechanism effectively removes internal debris, thus improving the efficiency and cleanliness of the equipment.
Smart Images

Figure CN224168552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seaming machine technology, specifically an automatic seaming machine. Background Technology
[0002] Air ducts are a type of piping system used to transport air. They are commonly found in various places such as buildings, industrial facilities, and vehicles. They are typically used in heating, ventilation, air conditioning, and exhaust systems to transport air from one location to another. Air ducts are an indispensable part of modern buildings and industrial facilities, providing the necessary air circulation and regulation functions for indoor environments. During the fabrication of air ducts, in order to ensure the strength, sealing, and aesthetics of the duct connections, a seaming machine is required to process the edge seams of the air ducts.
[0003] Patent application CN214441952U discloses a duct seaming machine, comprising: a frame, a worktable, a seaming device, and a limiting device. The worktable is mounted on the frame, and the seaming device is mounted on the worktable. The seaming device includes: a roller assembly and a motor. The roller assembly is mounted on the worktable, and the motor is mounted inside the frame. The motor drives the roller assembly via a conveyor belt. The roller assembly includes an upper roller and a lower roller. The limiting device is mounted on the worktable. When the material plate moves horizontally on the worktable, the upper and lower rollers process and shape the material plate. The limiting device limits the movement trajectory of the material plate to prevent deviation during processing. This utility model adds a limiting device to the worktable, fixing the movement trajectory of the material plate during processing and allowing the material plate to move parallel to the roller assembly on the worktable.
[0004] However, the duct seaming machines disclosed above generally have limited freedom of movement and seaming efficiency. They cannot simultaneously seam both sides of the duct during seaming, and after prolonged use, a large amount of debris remains inside the equipment, lacking a cleaning mechanism. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic duct seaming machine to solve the problems of the existing duct seaming machine having limited freedom of movement and seaming efficiency, being unable to seam both sides of the duct simultaneously during seaming, having a large amount of debris left inside the equipment after long-term use, and lacking a cleaning mechanism.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows: an automatic seaming machine, comprising a support frame and an air duct, wherein a horizontal forming pile with a rounded top is fixedly arranged in the middle of the support frame; a crossbeam is arranged at the top of the support frame, and a cylinder is installed at the top of the crossbeam; an upper mold is fixedly arranged at the output end of the cylinder; a telescopic cavity is opened inside the upper mold, and a lower mold is movably arranged in the telescopic cavity; a first biting mouth is arranged on one side of the lower mold, a first biting seat that cooperates with the first biting mouth is arranged on one side of the upper mold, a second biting mouth is arranged on the other side of the upper mold, and a second biting seat that cooperates with the second biting mouth is arranged on the other side of the lower mold; a fan is also installed on the support frame.
[0007] As a further improvement of this utility model, the bottom of the lower mold is provided with an arc-shaped part that cooperates with the forming pile.
[0008] As a further embodiment of this utility model: multiple sets of screws are fixedly installed on the top of the lower mold, the top of the screws penetrates the upper mold, a return spring is sleeved on the outside of the screws, and a nut is threadedly installed on the top of the screws.
[0009] As a further improvement of this utility model: the inner side of the support frame is provided with a first spray pipe for cleaning the upper mold and the lower mold, the inner side of the support frame is also provided with a second spray pipe for cleaning the formed pile, and a collection box is also provided on one side of the support frame.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] This invention utilizes the cooperation of an upper and lower mold to seam both sides of an air duct. During seaming, the left side of the air duct is placed between the first seaming cavity and the first seaming seat, while the right side is placed between the second seaming cavity and the second seaming seat. After stamping, the upper and lower molds automatically spring open under the action of a return spring. Then, the seams on both sides are stacked together and placed between the lower mold and the forming post for stamping and fixing. This design improves the stability and practicality of the automatic seaming machine. Attached Figure Description
[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a cross-sectional view of the present invention;
[0015] Figure 3 This is a three-dimensional structural diagram of the duct in this utility model.
[0016] Explanation of reference numerals in the attached figures:
[0017] 1. Support frame; 2. Forming pile; 3. Horizontal frame; 4. Cylinder; 5. Upper mold; 6. Telescopic cavity; 7. Lower mold; 8. Arc-shaped part; 9. Screw; 10. Return spring; 11. Nut; 12. First bite mouth; 13. First bite seat; 14. Second bite mouth; 15. Second bite seat; 16. Air duct; 17. Fan; 18. First nozzle; 19. Second nozzle; 20. Collection box. Detailed Implementation
[0018] The following will be combined with the appendix Figures 1 to 3 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] This utility model provides an automatic biting machine through improvements, such as Figures 1-3 As shown, the device includes a support frame 1 and an air duct 16. A horizontal forming pile 2 with a rounded top is fixedly installed in the middle of the support frame 1. A crossbeam 3 is installed on the top of the support frame 1, and a cylinder 4 is installed on the top of the crossbeam 3. An upper mold 5 is fixedly installed at the output end of the cylinder 4. A telescopic cavity 6 is opened inside the upper mold 5, and a lower mold 7 is movably installed in the telescopic cavity 6. A first biting mouth 12 is provided on one side of the lower mold 7, a first biting seat 13 that cooperates with the first biting mouth 12 is provided on one side of the upper mold 5, a second biting mouth 14 is provided on the other side of the upper mold 5, and a second biting seat 15 that cooperates with the second biting mouth 14 is provided on the other side of the lower mold 7. A fan 17 is also installed on the support frame 1.
[0020] This invention utilizes the cooperation of the upper mold 5 and the lower mold 7 to seam both sides of the air duct 16. During seaming, the left side of the air duct 16 is placed between the first seaming mouth 12 and the first seaming seat 13, and the right side of the air duct 16 is placed between the second seaming mouth 14 and the second seaming seat 15. After stamping, the upper mold 5 and the lower mold 7 automatically spring open under the action of the return spring 10. Then, the seams on the left and right sides are stacked together and placed between the lower mold 7 and the forming post 2 for stamping and fixing. This design improves the stability and practicality of the automatic seaming machine.
[0021] See appendix Figure 2 The bottom of the lower mold 7 is provided with an arc-shaped part 8 that cooperates with the forming pile 2.
[0022] In this embodiment: In order to further improve the stamping and shaping effect, an arc-shaped part 8 structure is designed to efficiently stamp and lock the bite.
[0023] See appendix Figure 1 -Appendix Figure 2 The top of the lower mold 7 is fixedly provided with multiple sets of screws 9, the top of the screws 9 penetrates the upper mold 5, a return spring 10 is sleeved on the outside of the screws 9, and a nut 11 is threadedly installed on the top of the screws 9.
[0024] In this embodiment: after biting, in order to make the upper mold 5 and the lower mold 7 automatically spring open, a reset spring 10 structure is designed.
[0025] See appendix Figure 1 The inner side of the support frame 1 is provided with a first spray pipe 18 for cleaning the upper mold 5 and the lower mold 7, and the inner side of the support frame 1 is also provided with a second spray pipe 19 for cleaning the forming pile 2. A collection box 20 is also provided on one side of the support frame 1.
[0026] In this embodiment: After the biting is completed, the first nozzle 18 cleans the space between the first biting mouth 12 and the first biting seat 13, and the space between the second biting mouth 14 and the second biting seat 15. After the stamping is completed, the second nozzle 19 cleans the space between the lower mold 7 and the forming post 2, and the debris falls into the collection box 20 for storage.
[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims
1. An automatic seaming machine, characterized in that: The system includes a support frame (1) and an air duct (16). A horizontal forming pile (2) with a rounded top is fixedly installed in the middle of the support frame (1). A cross frame (3) is installed on the top of the support frame (1). A cylinder (4) is installed on the top of the cross frame (3). An upper mold (5) is fixedly installed at the output end of the cylinder (4). A telescopic cavity (6) is opened inside the upper mold (5). A lower mold (7) is movably installed in the telescopic cavity (6). A first bite mouth (12) is provided on one side of the lower mold (7). A first bite seat (13) that cooperates with the first bite mouth (12) is provided on one side of the upper mold (5). A second bite mouth (14) is provided on the other side of the upper mold (5). A second bite seat (15) that cooperates with the second bite mouth (14) is provided on the other side of the lower mold (7). A fan (17) is also installed on the support frame (1).
2. An automatic seaming machine according to claim 1, characterized in that: The bottom of the lower mold (7) is provided with an arc-shaped part (8) that cooperates with the forming pile (2).
3. An automatic seaming machine according to claim 1, characterized in that: The top of the lower mold (7) is fixedly provided with multiple sets of screws (9), the top of the screws (9) penetrates the upper mold (5), a return spring (10) is sleeved on the outside of the screws (9), and a nut (11) is threadedly installed on the top of the screws (9).
4. An automatic seaming machine according to claim 1, characterized in that: The inner side of the support frame (1) is provided with a first spray pipe (18) for cleaning the upper mold (5) and the lower mold (7), and the inner side of the support frame (1) is also provided with a second spray pipe (19) for cleaning the forming pile (2). A collection box (20) is also provided on one side of the support frame (1).
Citation Information
Patent Citations
Air pipe production seaming machine
CN214441952U