Reciprocating type sealing and cutting device

Abstract

The utility model relates to the field of packaging machinery, and particularly discloses a reciprocating type sealing and cutting device. The reciprocating type sealing and cutting device comprises a workbench, a driving assembly, a conveying assembly and a sealing and cutting assembly are arranged on the workbench, the driving assembly is used for driving the sealing and cutting assembly to move, the sealing and cutting assembly comprises an upper sealing and cutting component and a lower sealing and cutting component, and the upper sealing and cutting component and the lower sealing and cutting component are eccentrically arranged on the driving assembly. And a guide part is arranged between the upper sealing and cutting part and the lower sealing and cutting part. The reciprocating type sealing and cutting device has the effect of improving the sealing and cutting efficiency, the conveying assembly does not need to stop working during sealing and cutting operation, the upper sealing and cutting component and the lower sealing and cutting component can slide in a reciprocating mode, and sealing and cutting are completed.

Description

Technical Field

[0001] The present application relates to the field of packaging machinery, and in particular to a reciprocating sealing and cutting device. Background Art

[0002] The sealing and cutting device is a mechanical device used to seal and cut packaging materials. It completes the sealing and cutting operations by heating or applying pressure to achieve the effect of moisture-proof and sealed packaging. The sealing and cutting device can be integrated with automatic packaging machinery or assembly lines to achieve automated production and efficient sealing and cutting operations, thereby improving production efficiency.

[0003] In the related art, the sealing and cutting device includes a workbench, a conveying component, a heat sealing component and a driving component. The conveying component is arranged on the workbench, and the conveying component is used to convey the plastic bags to be sealed and cut. The sealing and cutting component is arranged above the workbench, and the workbench is provided with an opening for the heat sealing component to pass through. The driving component is fixedly connected to the workbench, and the driving component is used to drive the heat sealing component to reciprocate in a direction perpendicular to the conveying component to achieve sealing and cutting of the plastic bags placed on the conveying component.

[0004] The above technical solution still has the following defects: when the heat sealing component performs longitudinal sealing and cutting, the conveying component needs to stop transporting to ensure the accuracy of the cutting line, and the sealing and cutting speed is therefore limited, resulting in reduced production efficiency and capacity. Utility Model Content

[0005] In order to improve the sealing and cutting efficiency, the present application provides a reciprocating sealing and cutting device.

[0006] The present application provides a reciprocating sealing and cutting device, which adopts the following technical solutions:

[0007] A reciprocating sealing and cutting device includes a workbench, on which a driving assembly, a conveying assembly and a sealing and cutting assembly are arranged. The driving assembly is used to drive the sealing and cutting assembly to move. The sealing and cutting assembly includes an upper sealing and cutting component and a lower sealing and cutting component. The upper sealing and cutting component and the lower sealing and cutting component are eccentrically arranged on the driving assembly respectively, and a guide component is arranged between the upper sealing and cutting component and the lower sealing and cutting component.

[0008] By adopting the above technical solution, the upper sealing and cutting component and the lower sealing and cutting component can perform circular motion under the action of the driving component, which not only enables the upper sealing and cutting component and the lower sealing and cutting component to complete the sealing and cutting operation in the vertical direction, but also enables the upper sealing and cutting component and the lower sealing and cutting component to slide back and forth in the horizontal direction. During sealing and cutting, the conveying component does not need to stop working, and the production efficiency and capacity are improved.

[0009] Optionally, the driving assembly includes a driving source, a lower sealing and cutting gear connected to the driving source, and an upper sealing and cutting gear connected to the lower sealing and cutting gear, the lower sealing and cutting gear is connected to a lower gear shaft, the upper sealing and cutting gear is connected to an upper gear shaft, and the lower gear shaft and the upper gear shaft are respectively rotatably connected to the workbench.

[0010] By adopting the above technical solution, the rotation of the driving source can drive the lower sealing and cutting gear to rotate, and the lower sealing and cutting gear drives the lower gear shaft to rotate, thereby driving the lower sealing and cutting component to perform circular motion around the central axis of the lower gear shaft; the lower sealing and cutting gear drives the upper sealing and cutting gear to rotate, and the upper sealing and cutting gear drives the upper gear shaft to rotate, thereby driving the upper sealing and cutting component to perform circular motion around the central axis of the upper gear shaft, thereby realizing power transmission and mechanical movement, and achieving more accurate speed and position control.

[0011] Optionally, the upper sealing and cutting gear and the lower sealing and cutting gear have the same size.

[0012] By adopting the above technical solution, the rotation speed of the upper sealing and cutting gear and the lower sealing and cutting gear can be made the same, and the sliding speed of the upper sealing and cutting component and the lower sealing and cutting component can be made the same, so that the upper sealing and cutting component and the lower sealing and cutting component can be synchronized, making the sealing and cutting more stable and reliable.

[0013] Optionally, the lower sealing and cutting component includes a lower sealing and cutting frame and a lower sealing and cutting knife connected to the lower sealing and cutting frame, and the end of the lower sealing and cutting frame is eccentrically arranged on the lower gear shaft. The upper sealing and cutting component includes an upper sealing and cutting frame and an upper sealing and cutting knife connected to the upper sealing and cutting frame, and the end of the upper sealing and cutting frame is eccentrically arranged on the upper gear shaft. The upper sealing and cutting knife and the lower sealing and cutting knife are used for sealing and cutting packaging materials.

[0014] By adopting this technical solution, when not sealing and cutting, the upper sealing and cutting frame is located at the upper end of the upper gear shaft, and the lower sealing and cutting frame is located at the lower end of the lower gear shaft, with the distance between the upper and lower sealing and cutting frames being maximized. During sealing and cutting, the upper sealing and cutting frame is located at the lower end of the upper gear shaft, and the lower sealing and cutting frame is located at the upper end of the lower gear shaft, with the distance between the upper and lower sealing and cutting frames being minimized. The upper and lower sealing and cutting blades perform different functions: the upper sealing and cutting blade primarily secures and supports the packaging material to be cut, while the lower sealing and cutting blade performs the actual cutting operation.

[0015] Optionally, two groups of the conveying components are provided, and a clearance area for the upper sealing and cutting knife and the lower sealing and cutting knife to move is formed between the two groups of the conveying components.

[0016] By adopting the above technical solution, during the sealing and cutting process, the clearance area facilitates the upper sealing and cutting knife and the lower sealing and cutting knife to seal and cut the packaging material, so that there is enough space between the conveying component and the upper sealing and cutting knife and the lower sealing and cutting knife, and they are not easily interfered with each other.

[0017] Optionally, the guide component includes a transverse slide rail and a longitudinal slide rail, and the upper sealing and cutting frame and the lower sealing and cutting frame are slidably connected to the longitudinal slide rails respectively.

[0018] By adopting this technical solution, the longitudinal slide rails serve as guides, primarily supporting and guiding the upper and lower sealing and cutting components. By providing a stable motion trajectory, the upper and lower sealing and cutting components slide as a whole along the upper gear shaft, while the lower sealing and cutting components slide as a whole along the lower gear shaft. The upper and lower sealing and cutting components do not rotate vertically, and the upper and lower sealing and cutting blades remain positioned relative to each other. Furthermore, the longitudinal slide rails reduce frictional resistance in the movement of the upper and lower sealing and cutting components, making their movement smoother and more efficient.

[0019] Optionally, the transverse slide rail is connected to the workbench, and a connecting block is connected between the transverse slide rail and the longitudinal slide rail.

[0020] By adopting the above technical solution, the transverse slide rail not only provides guidance for the horizontal movement of the upper sealing and cutting component and the lower sealing and cutting component, but also supports the longitudinal slide rail, so that the longitudinal slide rail slides stably.

[0021] Optionally, the driving source is connected to a reducer, the reducer is connected to a first synchronous pulley, the lower sealing and cutting gear is connected to a second synchronous pulley, and a synchronous belt is connected between the first synchronous pulley and the second synchronous pulley.

[0022] By employing the above technical solution, a speed reducer is used to reduce the output speed of the drive source while providing high torque output. Its compact structure and relatively small size allow for alignment of the input and output shafts, making installation and integration easier while taking up relatively little space. Furthermore, the speed reducer offers high transmission efficiency, minimizing power loss and heat generation. It also exhibits high stability, reducing vibration and shock, and providing relatively smooth output motion.

[0023] The first synchronous pulley and the second synchronous pulley are used to transmit power to achieve normal operation of the mechanical device. The gear cooperation between the synchronous pulley and the synchronous belt can maintain synchronization, making the transmission process more accurate and stable.

[0024] In summary, this application has the following beneficial effects:

[0025] 1. By eccentrically setting the upper and lower sealing and cutting components, the conveying component does not need to stop working during the sealing and cutting operation. The upper and lower sealing and cutting components slide along the conveying direction of the conveying component, thereby improving the sealing and cutting efficiency and production capacity;

[0026] 2. By setting up the guide parts, support and guidance are provided for the upper sealing and cutting parts and the lower sealing and cutting parts, making the movement smoother and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of the reciprocating sealing and cutting device according to an embodiment of the present application from a first perspective;

[0028] Figure 2 is a schematic structural diagram of the reciprocating sealing and cutting device according to an embodiment of the present application from a second viewing angle;

[0029] Figure 3 It is a schematic structural diagram of the driving assembly and the sealing and cutting assembly of an embodiment of the present application.

[0030] Explanation of the accompanying reference numerals: 1. workbench; 2. driving assembly; 21. driving source; 22. lower sealing and cutting gear; 221. lower gear shaft; 23. upper sealing and cutting gear; 231. upper gear shaft; 24. reducer; 25. first synchronous pulley; 26. second synchronous pulley; 27. synchronous belt; 3. conveying assembly; 31. yield area; 4. sealing and cutting assembly; 41. upper sealing and cutting component; 411. upper sealing and cutting frame; 412. upper sealing and cutting knife; 42. lower sealing and cutting component; 421. lower sealing and cutting frame; 422. lower sealing and cutting knife; 43. guide component; 431. transverse slide rail; 432. longitudinal slide rail; 433. connecting block. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a reciprocating sealing and cutting device.

[0033] Reference Figure 1 and Figure 2 The reciprocating sealing and cutting device includes a workbench 1, a driving component 2, a conveying component 3 and a sealing and cutting component 4. The conveying component 3 is used to transport the material to be sealed and cut. The sealing and cutting component 4 is slidably set on the workbench 1. The sealing and cutting component 4 is used to seal and cut the packaging material. The driving component 2 is connected to the sealing and cutting component 4 and is used to drive the sealing and cutting component 4.

[0034] Reference Figure 2 and Figure 3 The sealing and cutting assembly 4 includes an upper sealing and cutting component 41 and a lower sealing and cutting component 42. The conveyor assembly 3 is provided with two groups. A clearance area 31 is formed between the two groups of conveyor assemblies 3 for the upper and lower sealing and cutting components 41 and 42 to move. The upper sealing and cutting component 41 is located above the clearance area 31, and the lower sealing and cutting component 42 is located below the clearance area 31. The upper sealing and cutting component 41 is primarily used to fix and support the packaging material to be sealed and cut, while the lower sealing and cutting component 42 is primarily used for the actual sealing and cutting operations.

[0035] Reference Figure 2 and Figure 3The drive assembly 2 includes a drive source 21, a lower sealing and cutting gear 22, and an upper sealing and cutting gear 23. The drive source 21 is located at the bottom of the workbench 1 and is used to drive the rotation of the lower sealing and cutting gear 22 and the upper sealing and cutting gear 23. The lower side of the upper sealing and cutting gear 23 is meshed with the lower sealing and cutting gear 22. The upper sealing and cutting gear 23 and the lower sealing and cutting gear 22 are of the same size. During normal rotation, the upper sealing and cutting gear 23 and the lower sealing and cutting gear 22 rotate at the same speed but in opposite directions. The upper gear shaft 231 is fixedly connected to the side of the upper sealing and cutting gear 23 near the upper sealing and cutting component 41. The upper gear shaft 231 penetrates the workbench 1 and is rotatably connected to the workbench 1. The upper sealing and cutting component 41 is eccentrically mounted on the upper gear shaft 231. A lower gear shaft 221 is fixedly connected to one side of the lower sealing and cutting gear 22 close to the lower sealing and cutting component 42 . The lower gear shaft 221 passes through the workbench 1 and is rotatably connected to the workbench 1 . The lower sealing and cutting component 42 is eccentrically mounted on the lower gear shaft 221 .

[0036] Reference Figure 2 and Figure 3 A guide component 43 is fixedly connected to the workbench 1, and the guide component 43 includes a transverse slide rail 431 and a longitudinal slide rail 432. The transverse slide rail 431 is fixedly connected to the workbench 1, and a connecting block 433 is slidably connected between the transverse slide rail 431 and the longitudinal slide rail 432. The upper sealing and cutting component 41 and the lower sealing and cutting component 42 are slidably connected to the longitudinal slide rail 432 respectively.

[0037] When the drive source 21 rotates the lower sealing and cutting gear 22 and the upper sealing and cutting gear 23, the upper sealing and cutting component 41, driven by the upper gear shaft 231, performs circular motion, while the lower sealing and cutting component 42, driven by the lower gear shaft 221, performs circular motion, causing the upper and lower sealing and cutting components 41, 42 to move synchronously with the conveyor assembly 3. The horizontal sliding distance of the upper and lower sealing and cutting components 41, 42 is consistent with the sliding distance of the connecting block 433 on the transverse slide rail 431. Simultaneously, the vertical sliding distance of the upper and lower sealing and cutting components 41, 42 is consistent with the sliding distance of the connecting block 433 on the longitudinal slide rail 432. The coordination of the transverse slide rail 431 and the longitudinal slide rail 432 prevents the upper and lower sealing and cutting components 41, 42 from rotating during sliding, achieving precise sealing and cutting operations.

[0038] Reference Figure 1 and Figure 2 A speed reducer 24 is mounted on the output shaft of the drive source 21. The speed reducer 24 is used to reduce the output speed of the drive source 21 and provide a higher torque output. A first synchronous pulley 25 is mounted on the output shaft of the speed reducer 24. A second synchronous pulley 26 is meshedly connected to the lower side of the lower sealing and cutting gear 22. A synchronous belt 27 is keyed between the first synchronous pulley 25 and the second synchronous pulley 26. The first synchronous pulley 25, the second synchronous pulley 26, and the synchronous belt 27 are used to transmit power and maintain synchronization.

[0039] In the embodiment of the present application, the driving source 21 preferably has a servo motor, and the reducer 24 is preferably a planetary gear reducer 24. The planetary gear reducer 24 has a compact structure and a relatively small volume, and its multi-stage transmission structure can provide a higher torque output.

[0040] Reference Figure 3 The upper sealing and cutting component 41 includes an upper sealing and cutting frame 411 and an upper sealing and cutting blade 412. The upper sealing and cutting blade 412 is fixedly connected to the side of the upper sealing and cutting frame 411 near the lower sealing and cutting component 42. The upper sealing and cutting frame 411 is eccentrically mounted on the upper gear shaft 231. The lower sealing and cutting component 42 includes a lower sealing and cutting frame 421 and a lower sealing and cutting blade 422. The lower sealing and cutting blade 422 is fixedly connected to the side of the lower sealing and cutting frame 421 near the upper sealing and cutting component 41. The lower sealing and cutting frame 421 is eccentrically mounted on the lower gear shaft 221. The upper sealing and cutting blade 412 and the lower sealing and cutting blade 422 are used to seal and cut packaging materials.

[0041] The operating principle of the reciprocating sealing and cutting device of the present embodiment is as follows: When the conveyor assembly 3 transports the packaging material to be sealed and cut to the clearance area 31, the drive source 21 is decelerated by the reducer 24 to increase the torque output. The first and second synchronous pulleys 25 and 26 drive the lower sealing and cutting gear 22 and the upper sealing and cutting gear 23 to rotate. The lower sealing and cutting gear 22 drives the lower sealing and cutting component 42 to perform a circular motion, while the upper sealing and cutting gear 23 drives the upper sealing and cutting component 41 to perform a circular motion. When the upper sealing and cutting blade 412 moves to the lowest end of the upper gear shaft 231 and the lower sealing and cutting blade 422 moves to the highest end of the lower gear shaft 221, the sealing and cutting of the packaging material is completed. After the sealing and cutting is completed, the upper sealing and cutting component 41 and the lower sealing and cutting component 42 move to their initial positions. This cycle repeats to complete the operation.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A reciprocating sealing and cutting device, comprising a workbench (1), on which a driving assembly (2), a conveying assembly (3) and a sealing and cutting assembly (4) are arranged, characterized in that: The driving assembly (2) is used to drive the sealing and cutting assembly (4) to move. The sealing and cutting assembly (4) comprises an upper sealing and cutting component (41) and a lower sealing and cutting component (42). The upper sealing and cutting component (41) and the lower sealing and cutting component (42) are respectively eccentrically arranged on the driving assembly (2). A guiding component (43) is arranged between the upper sealing and cutting component (41) and the lower sealing and cutting component (42).

2. The reciprocating sealing and cutting device according to claim 1, characterized in that: The driving assembly (2) comprises a driving source (21), a lower sealing and cutting gear (22) connected to the driving source (21), and an upper sealing and cutting gear (23) connected to the lower sealing and cutting gear (22); the lower sealing and cutting gear (22) is connected to a lower gear shaft (221); the upper sealing and cutting gear (23) is connected to an upper gear shaft (231); the lower gear shaft (221) and the upper gear shaft (231) are respectively rotatably connected to the workbench (1).

3. The reciprocating sealing and cutting device according to claim 2, characterized in that: The upper sealing and cutting gear (23) and the lower sealing and cutting gear (22) have the same size.

4. The reciprocating sealing and cutting device according to claim 2, characterized in that: The lower sealing and cutting component (42) comprises a lower sealing and cutting frame (421) and a lower sealing and cutting knife (422) connected to the lower sealing and cutting frame (421); the end of the lower sealing and cutting frame (421) is eccentrically arranged on the lower gear shaft (221); the upper sealing and cutting component (41) comprises an upper sealing and cutting frame (411) and an upper sealing and cutting knife (412) connected to the upper sealing and cutting frame (411); the end of the upper sealing and cutting frame (411) is eccentrically arranged on the upper gear shaft (231); the upper sealing and cutting knife (412) and the lower sealing and cutting knife (422) are used for sealing and cutting packaging materials.

5. The reciprocating sealing and cutting device according to claim 4, characterized in that: The conveying components (3) are provided in two groups, and a clearance area (31) for the upper sealing and cutting knife (412) and the lower sealing and cutting knife (422) to move is formed between the two groups of conveying components (3).

6. The reciprocating sealing and cutting device according to claim 4, characterized in that: The guide component (43) comprises a transverse slide rail (431) and a longitudinal slide rail (432), and the upper sealing and cutting frame (411) and the lower sealing and cutting frame (421) are respectively slidably connected to the longitudinal slide rail (432).

7. The reciprocating sealing and cutting device according to claim 6, characterized in that: The transverse slide rail (431) is connected to the workbench (1), and a connecting block (433) is connected between the transverse slide rail (431) and the longitudinal slide rail (432).

8. The reciprocating sealing and cutting device according to claim 2, characterized in that: The driving source (21) is connected to a reducer (24), the reducer (24) is connected to a first synchronous pulley (25), the lower sealing and cutting gear (22) is connected to a second synchronous pulley (26), and a synchronous belt (27) is connected between the first synchronous pulley (25) and the second synchronous pulley (26).

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