Packaging bag double-needle sewing equipment
By introducing a movable plate and electric push rod system into the packaging bag sewing equipment, the automated horizontal movement of the packaging bag material is realized, solving the problems of fatigue and uneven stitching caused by manual pulling, and improving sewing efficiency and quality.
Patent Information
- Application Number
- CN202520050834.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-09
AI Technical Summary
During the sewing process of packaging bags, manually pulling the material increases the workload of operators, leading to fatigue and uneven stitching, making it difficult to ensure stability and neatness.
The system employs a movable plate and an electric push rod system. The electric push rod pushes the pressure plate to clamp the packaging bag material, and the movable plate is moved by a pulley and a motor-driven linkage, thus achieving horizontal movement of the packaging bag material and reducing manual operation.
It reduces the workload of operators, ensures the smooth movement of packaging bag materials, improves the uniformity and neatness of the stitching lines, and enhances the sewing effect.
Smart Images

Figure CN223660381U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewing machinery technology, and in particular to a double-needle sewing device for packaging bags. Background Technology
[0002] In the packaging industry, packaging bags serve as a crucial medium for product protection and transport; their quality and durability directly impact product preservation and transportation effectiveness. To ensure both strength and aesthetics, double-needle sewing technology is widely used in packaging bag production. Compared to single-needle sewing, it significantly improves thread strength and sewing efficiency. The alternating work of two needles creates a crisscrossing stitch pattern, which not only enhances the tensile strength of the packaging bag but also makes the stitching more aesthetically pleasing, thus improving the overall quality of the product.
[0003] In current packaging bag sewing processes, operators typically need to manually pull the packaging bag material to move it while sewing. This increases the operator's workload, easily leading to fatigue and operational errors. Furthermore, manually pulling the material may not guarantee smooth movement, easily causing the packaging bag to shift or move at uneven speeds during sewing, thus affecting the uniformity of the stitching and the overall sewing effect. Therefore, this invention provides a double-needle sewing device for packaging bags to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a double-needle sewing device for packaging bags. By setting a movable plate to guide the movement of the packaging bag material, the device enables horizontal movement of the packaging bag material during sewing, reducing the user's workload and eliminating the need for manual pushing of the packaging bag material. Simultaneously, it makes the movement of the packaging bag material during sewing more stable, ensuring the uniformity and neatness of the stitches, thereby improving the sewing effect.
[0005] To achieve the above objectives, a double-needle sewing machine for packaging bags is provided, including a base, a table, and a machine body located on top of the table. An L-shaped movable plate is provided on the top of the table and on one side of the head of the machine body. An electric push rod is fixedly connected to the top of the movable plate. The piston rod of the electric push rod is slidably connected inside the movable plate, and pressure plates are fixedly connected to the bottom end of the piston rod and one side of the movable plate. A mounting frame is fixedly connected to the bottom of the table and below the movable plate. Two pulleys are rotatably connected to one side of the mounting frame, and the pulleys are connected via a transmission belt. A U-shaped connecting rod is fixedly connected to the top of the transmission belt and on the side away from the movable plate. The top end of the connecting rod is fixedly connected to the movable plate. A motor is fixedly connected to the side of the mounting frame away from the pulleys, wherein the central shaft of the pulley closest to the motor passes through the mounting frame and is fixedly connected to the output shaft of the motor.
[0006] According to the double-needle sewing equipment for packaging bags, a slide rail with a hollow internal structure is fixedly connected to the bottom of the table and to one side of the transmission belt. A pulley is rotatably connected to the side of the connecting rod near the slide rail, and the pulley is slidably connected inside the slide rail.
[0007] According to the aforementioned double-needle sewing equipment for packaging bags, a control panel is provided on the top of the table and on the side near the edge.
[0008] According to the double-needle sewing equipment for packaging bags, the opposing sides of the pressure plates are provided with anti-slip textures.
[0009] According to the aforementioned double-needle sewing equipment for packaging bags, four casters are evenly installed on the bottom of the machine base, and the casters are universal wheels with a self-locking structure.
[0010] According to the aforementioned double-needle sewing equipment for packaging bags, the motor is located away from the control panel.
[0011] This utility model has the following beneficial effects:
[0012] Compared with existing technologies, this double-needle sewing machine for packaging bags uses a movable plate to guide the movement of the packaging bag material, enabling horizontal movement of the material during sewing. This reduces the workload for the user, eliminating the need for manual pushing of the material. Simultaneously, it ensures smoother movement of the material during sewing, guaranteeing uniformity and neatness of the stitches, thereby improving the sewing effect.
[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is a schematic diagram of the main structure of a double-needle sewing device for packaging bags according to this utility model;
[0016] Figure 2 This is a side view of the structure of a double-needle sewing device for packaging bags according to the present invention;
[0017] Figure 3 This is a top view of the overall structure of the table of a double-needle sewing equipment for packaging bags according to this utility model;
[0018] Figure 4 This is a top-view schematic diagram of the overall structure of the table of a double-needle sewing machine for packaging bags according to this utility model.
[0019] Figure 5 This utility model relates to a double-needle sewing device for packaging bags. Figure 4 Enlarged structural diagram at point A in the middle;
[0020] Figure 6 This is a schematic diagram of the connecting rod, pulley, and slide rail structure of a double-needle sewing device for packaging bags according to this utility model.
[0021] Legend:
[0022] 1. Base; 2. Tabletop; 3. Mounting bracket; 4. Pulley; 5. Drive belt; 6. Connecting rod; 7. Movable plate; 8. Electric push rod; 9. Pressure plate; 10. Control panel; 11. Casters; 12. Motor; 13. Slide rail; 14. Pulley; 15. Machine body. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-6 This utility model provides a double-needle sewing equipment for packaging bags, which includes a base 1, a table 2, and a body 15 located on top of the table 2. An L-shaped movable plate 7 is provided on the top of the table 2 and on one side of the head of the body 15. An electric push rod 8 is fixedly connected to the top of the movable plate 7. The piston rod of the electric push rod 8 is slidably connected inside the movable plate 7. A pressure plate 9 is fixedly connected to the bottom end of the piston rod of the electric push rod 8 and one side of the movable plate 7. The opposing sides of the pressure plates 9 are provided with anti-slip textures to ensure that the packaging bag material can be firmly clamped during the sewing process. A mounting bracket 3 is fixedly connected to the bottom of the tabletop 2 and below the movable plate 7. Two pulleys 4 are rotatably connected to one side of the mounting bracket 3. The pulleys 4 are connected by a transmission belt 5. A U-shaped connecting rod 6 is fixedly connected to the top of the transmission belt 5 and the side away from the movable plate 7. The top of the connecting rod 6 is fixedly connected to the movable plate 7. A motor 12 is fixedly connected to the side of the mounting bracket 3 away from the pulleys 4. The central shaft of the pulley 4 closest to the motor 12 passes through the mounting bracket 3 and is fixedly connected to the output shaft of the motor 12.
[0025] When the packaging bag material to be sewn is placed on the head of the sewing machine 15, the head of the packaging bag material is positioned between the pressure plates 9. The electric push rod 8 moves to push the upper pressure plate 9 downward to hold the packaging bag material, which can better position the packaging bag material on the movable plate 7. The control motor 12 drives the pulley 4 to rotate, and the rotating pulley 4 drives the transmission belt 5, thereby realizing the movement of the connecting rod 6 and the movable plate 7. As the movable plate 7 moves, it pulls the packaging bag material forward, and the cooperation with the sewing machine head completes the sewing work. Moreover, the moving movable plate 7 can realize the horizontal movement of the packaging bag material during sewing, which helps to reduce the workload of the user and eliminates the need for the user to manually push the packaging bag material. At the same time, it makes the movement of the packaging bag material more stable, which can ensure the uniformity and neatness of the stitching, thereby improving the sewing effect.
[0026] To enhance the stability of the movement of the connecting rod 6, a slide rail 13 with a hollow internal structure is fixedly connected to the bottom of the platform 2 and to one side of the transmission belt 5. A pulley 14 is rotatably connected to the side of the connecting rod 6 near the slide rail 13, and the pulley 14 is slidably connected inside the slide rail 13.
[0027] The connecting rod 6, through the cooperation of the pulley 14 and the slide rail 13, can support the connecting rod 6 and its components such as the movable plate 7, so as to reduce the pressure of the connecting rod 6 directly acting on the transmission belt 5, which helps to ensure the smooth rotation of the transmission belt 5 and the stable movement of the movable plate 7.
[0028] To facilitate user operation, a control panel 10 is provided on the top of the tabletop 2 near the edge. Users can operate the equipment through the control panel 10 to easily control the operation of the electric push rod 8 and the speed of the motor 12. The motor 12 is positioned away from the control panel 10, so that the motor 12 is located at the rear of the base 1 to prevent the user from touching the motor 12.
[0029] Four casters 11 are evenly installed at the bottom of the base 1. The casters 11 are universal casters with a self-locking structure, which not only facilitates the movement of the equipment, but also locks the position when needed to ensure the stability of the equipment.
[0030] Working Principle: When the packaging bag material to be sewn is placed on the head of the sewing machine 15, the head of the packaging bag material is positioned between the pressure plates 9. The electric push rod 8 pushes the upper pressure plate 9 downward to hold the packaging bag material, which can better position the packaging bag material on the movable plate 7. The control motor 12 drives the pulley 4 to rotate, and the rotating pulley 4 drives the transmission belt 5, thereby realizing the movement of the connecting rod 6 and the movable plate 7. As the movable plate 7 moves, it pulls the packaging bag material forward, and the cooperation with the sewing machine head completes the sewing work. Moreover, the moving movable plate 7 can realize the horizontal movement of the packaging bag material during sewing, which helps to reduce the workload of the user and eliminates the need for the user to manually push the packaging bag material. At the same time, it makes the movement of the packaging bag material more stable, which can ensure the uniformity and neatness of the stitching, thereby improving the sewing effect.
[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A double needle sewing apparatus for packaging bags, characterized by, The utility model relates to a kind of automatic lifting table, including base (1), table top (2) and the fuselage (15) of being located at the top of table top (2), the top of the table top (2) and the side of the head of fuselage (15) is equipped with movable plate (7) of L-shaped structure, electric push rod (8) is fixedly connected at the top of movable plate (7), the piston rod of electric push rod (8) is slidably connected in movable plate (7) inside, and the piston rod bottom end of electric push rod (8) and the side of movable plate (7) are both fixedly connected with pressing plate (9), mounting bracket (3) is fixedly connected with the bottom of table top (2) and below movable plate (7), one side of mounting bracket (3) is rotatably connected with two belt pulleys (4), belt pulley (4) is driven connection by transmission belt (5), the top of transmission belt (5) and the side away from movable plate (7) are fixedly connected with the connecting rod (6) of U-shaped structure, the top end of connecting rod (6) is fixedly connected with movable plate (7), the side away from belt pulley (4) of mounting bracket (3) is fixedly connected with motor (12), wherein the central axis of the belt pulley (4) close to motor (12) penetrates mounting bracket (3) and is fixedly connected with the output shaft of motor (12).
2. The double needle sewing apparatus for packaging bags according to claim 1, wherein The bottom of the table top (2) and the side of transmission belt (5) are fixedly connected with the slide rail (13) with hollow structure inside, the side close to slide rail (13) of connecting rod (6) is rotatably connected with pulley (14), pulley (14) is slidably connected in slide rail (13) inside.
3. The double needle sewing apparatus for packaging bags according to claim 2, wherein The top of the table top (2) and the side close to edge are equipped with control panel (10).
4. The double needle sewing apparatus for packaging bags according to claim 3, wherein The opposite side of the pressing plate (9) is equipped with anti-skid texture.
5. The double needle sewing apparatus for packaging bags according to claim 4, wherein The bottom of the base (1) is evenly mounted with four moving wheels (11), and the moving wheels (11) are universal wheels with self-locking structure.
6. The double needle sewing apparatus for packaging bags according to claim 1, wherein The motor (12) is arranged away from the control panel (10).