Heat-seal cutting mechanism

Abstract

The utility model relates to a heat-seal cutting mechanism. According to the technical scheme, the heat-seal cutting mechanism is characterized by comprising a supporting frame used for being connected with a rack of a packaging machine and an adjusting module used for adjusting the horizontal height of the supporting frame; the rack is provided with a heat sealing and cutting module used for conducting heat sealing and cutting on a packaging bag, a driving module used for driving the heat sealing and cutting module and a control module. The output end of the driving module is in transmission connection with the input end of the heat-sealing cut-off module; the driving module and the heat-seal cutting module are both electrically connected with the control module; the output end of the adjusting module is in transmission connection with the supporting frame. The overall structure is stable, and the horizontal height of the supporting frame on the rack of the packaging machine can be adjusted through the adjusting assembly so as to adapt to assembly of racks with different heights; the heat-sealing and cutting-off integrated design is adopted, so that the production and processing efficiency can be effectively improved; the mechanism is small in overall structure and small in occupied space.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and more specifically, it relates to a heat-sealing and cutting mechanism. Background Technology

[0002] In the food and pharmaceutical packaging industry, the heat sealing and cutting processes of packaging bags have a significant impact on the efficiency and quality of bag production. Traditional heat sealing and cutting mechanisms for packaging bags have the following drawbacks: First, the heat sealing and cutting processes are performed in separate steps, resulting in low processing efficiency and a bulky structure; second, the cutting blades are often two blades set at an angle, requiring precise positioning of the blades, making adjustment difficult, and requiring replacement of all blades if damaged, leading to high maintenance costs; furthermore, the height of the heat sealing and cutting mechanisms is difficult to adjust according to actual application conditions during assembly. Therefore, we propose a new heat sealing and cutting mechanism. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heat-sealing and cutting mechanism to solve the technical problems existing in the background technology.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heat-sealing and cutting mechanism, comprising: a support frame for connecting to the frame of a packaging machine, and an adjustment module for adjusting the horizontal height of the support frame; the frame is equipped with: a heat-sealing and cutting module for heat-sealing and cutting packaging bags, a drive module for driving the heat-sealing and cutting module, and a control module; the output end of the drive module is drively connected to the input end of the heat-sealing and cutting module; both the drive module and the heat-sealing and cutting module are electrically connected to the control module; the output end of the adjustment module is drively connected to the support frame.

[0005] Optionally, the drive module includes: a drive motor, a reducer, at least one first connecting rod, at least one transmission rocker arm adapted to the first connecting rod, two crossbars, a first connecting plate, a second connecting plate, two second connecting rods, and two third connecting rods; the two crossbars are slidably mounted on the support frame from top to bottom; the drive motor and the reducer are both mounted at the bottom of the support frame; the output end of the drive motor is drively connected to the output end of the reducer; the output end of the reducer is fixedly connected to one end of the transmission rocker arm; the other end of the transmission rocker arm is hinged to one end of the first connecting rod; the other end of the first connecting rod is hinged to a crossbar located below.

[0006] The middle end of the first connecting plate is rotatably connected to one side of the support frame via a pivot; one end of a second connecting rod is fixedly connected to one end of the first connecting plate, and the other end is hinged to one end of the lower crossbar; one end of another second connecting rod is hinged to the other end of the first connecting plate, and the other end is hinged to one end of the upper crossbar; the middle end of the second connecting plate is rotatably connected to the other side of the support frame via a pivot; one end of a third connecting rod is fixedly connected to one end of the second connecting plate, and the other end is hinged to the other end of the lower crossbar; one end of another third connecting rod is hinged to the other end of the second connecting plate, and the other end is hinged to the other end of the upper crossbar; the drive motor is electrically connected to the control module.

[0007] Optionally, the heat-sealing cutting module includes: a first heat-sealing strip, a second heat-sealing strip, a fixing plate, a blade, a first cylinder, several heat-insulating pads, several spring screws, and two fixing seats; the first heat-sealing strip is fixedly installed on the upper end face of the lower crossbar via several heat-insulating pads; both ends of the fixing plate are fixedly connected to the lower end face of the upper crossbar via the two fixing seats; the second heat-sealing strip is fixedly installed on the lower end face of the fixing plate; the first heat-sealing strip and the second heat-sealing strip are arranged opposite to each other; the spring screw passes through the upper crossbar and is fixedly connected to the fixing plate, and the spring screw is in the gap between the two fixing seats; a sliding groove adapted to the blade is opened on the opposing surfaces of the first heat-sealing strip and the second heat-sealing strip; the cutting end of the blade is slidably installed in the sliding groove; the assembly end of the blade passes through the second heat-sealing strip and is fixedly connected to the output end of the first cylinder; the first cylinder is fixedly installed on the upper crossbar; the first cylinder, the first heat-sealing strip and the second heat-sealing strip are electrically connected to the control module.

[0008] Optionally, both the first and second heat-sealing strips are equipped with temperature sensors; the temperature sensors are electrically connected to the control module respectively.

[0009] Optionally, the control module includes: a controller and a junction box; the junction box is mounted on the support frame; the controller is electrically connected to the junction box, a temperature sensor, a first cylinder, a first heat sealing strip, a second heat sealing strip, and a drive motor.

[0010] Optionally, the adjustment module includes: a manual crank, a magnetic powder clutch, and a drive shaft; the manual crank is connected to the input end of the magnetic powder clutch via a rotating shaft; the output end of the magnetic powder clutch is connected to the input end of the drive shaft; and the output end of the drive shaft is fixedly connected to the bottom of the support frame.

[0011] Optionally, a second cylinder is provided on each side of the support frame; the output ends of the two second cylinders are provided with corner inserts for inserting corners into the packaging bag; the two corner inserts are arranged opposite to each other.

[0012] This utility model has a stable overall structure, and the horizontal height of the support frame on the packaging machine frame can be adjusted by adjusting the components to adapt to the assembly of frames of different heights; it adopts an integrated heat sealing and cutting design, which can effectively improve production and processing efficiency; the overall structure of the mechanism is compact and occupies a small area. Attached Figure Description

[0013] Figure 1 This is an assembly drawing of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model during assembly;

[0015] Figure 3 This is a structural schematic diagram of the drive module and the heat-sealing and cutting module in this utility model.

[0016] In the diagram: 1. Support frame; 2. Adjustment module; 21. Manual crank wheel; 22. Magnetic powder clutch; 23. Drive shaft; 3. Heat sealing and cutting module; 31. First heat sealing strip; 32. Second heat sealing strip; 33. Fixing plate; 34. Blade; 35. First cylinder; 36. Heat insulation pad; 37. Compression spring screw; 38. Fixing seat; 4. Drive module; 41. Drive motor; 42. Reducer; 43. First connecting rod; 44. Drive rocker arm; 45. Crossbar; 46. First connecting plate; 47. Second connecting plate; 48. Second connecting rod; 49. Third connecting rod; 5. Control module; 51. Junction box; 6. Second cylinder; 7. Plug; 8. Slide groove. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0019] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown, this utility model provides a heat-sealing and cutting mechanism, including: a support frame 1 for connecting to the frame of a packaging machine, and an adjustment module 2 for adjusting the horizontal height of the support frame 1; the frame is equipped with: a heat-sealing and cutting module 3 for heat-sealing and cutting packaging bags, a drive module 4 for driving the heat-sealing and cutting module 3, and a control module 5; the output end of the drive module 4 is operatively connected to the input end of the heat-sealing and cutting module 3; both the drive module 4 and the heat-sealing and cutting module are electrically connected to the control module 5; the output end of the adjustment module 2 is operatively connected to the support frame 1.

[0022] In this embodiment, as Figure 1-3As shown, the support frame 1 is adjustable and can be mounted on the frame of the packaging machine. The horizontal height of the support frame 1 on the frame of the packaging machine can be adjusted by adjusting the components to adapt to the assembly of frames of different heights. The overall structure is stable and adopts an integrated heat sealing and cutting design, which can effectively improve production and processing efficiency. The overall structure of the mechanism is compact and occupies a small area.

[0023] Further, the drive module 4 includes: a drive motor 41, a reducer 42, at least one first connecting rod 43, at least one transmission rocker arm 44 adapted to the first connecting rod 43, two crossbars 45, a first connecting plate 46, a second connecting plate 47, two second connecting rods 48, and two third connecting rods 49; the two crossbars 45 are slidably mounted on the support frame 1 from top to bottom; the drive motor 41 and the reducer 42 are both mounted on the bottom of the support frame 1; the output end of the drive motor 41 is connected to the output end of the reducer 42; the output end of the reducer 42 is fixedly connected to one end of the transmission rocker arm 44; the other end of the transmission rocker arm 44 is hinged to one end of the first connecting rod 43; the other end of the first connecting rod 43 is hinged to a crossbar 45 located below; the first connecting plate 46... The middle end of 6 is rotatably connected to one side of the support frame 1 via a pivot; one end of a second connecting rod 48 is fixedly connected to one end of the first connecting plate 46, and the other end is hinged to one end of the lower crossbar 45; one end of another second connecting rod 48 is hinged to the other end of the first connecting plate 46, and the other end is hinged to one end of the upper crossbar 45; the middle end of the second connecting plate 47 is rotatably connected to the other side of the support frame 1 via a pivot; one end of a third connecting rod 49 is fixedly connected to one end of the second connecting plate 47, and the other end is hinged to the other end of the lower crossbar 45; one end of another third connecting rod 49 is hinged to the other end of the second connecting plate 47, and the other end is hinged to the other end of the upper crossbar 45; the drive motor 41 is electrically connected to the control module 5.

[0024] In this embodiment, as Figure 1-3As shown, two guide rods are arranged side by side on the inner side of the support frame 1, and two crossbars 45 are slidably mounted on the inner side of the support frame 1 from top to bottom through the two guide rods. In this embodiment, the number of the transmission rocker arm 44 and the first connecting rod 43 are both 2. The drive motor 41 and the reducer 42 adopt mature technology products on the market, which belong to the prior art and will not be described in detail here. During operation, the control module 5 controls the drive motor 41 to start, and the drive motor 41 works, driving the reducer 42 to work. During the operation of the reducer 42, it drives the transmission rocker arm 44 at its output end to rotate, thereby driving the first connecting rod 43 to perform lifting and pulling movements. When the transmission rocker arm 44 drives the first connecting rod 43 to perform lifting movements, the first connecting rod 43 pushes the crossbar 45 located below along the two The guide rod slides upward. During the sliding process, it drives the second connecting rod 48 and the third connecting rod 49 connected to its two ends to move upward, thereby driving the first connecting plate 46 and the second connecting plate 47 to flip. During the flipping of the first connecting plate 46 and the second connecting plate 47, the second connecting rod 48 and the third connecting rod 49 connected to the other end of the two connecting plates to pull downward, thereby driving the upper crossbar 45 to slide downward along the two guide rods. This allows the two crossbars 45 to move relative to each other synchronously, so as to cooperate in realizing the clamping, heat sealing and cutting operation of the heat sealing and cutting assembly. When the rocker arm 44 drives the first connecting rod 43 to pull downward, it drives the two crossbars 45 to move in opposite directions synchronously, so as to release the heat sealing and cutting assembly in the clamped state. The overall structure is stable and easy to install.

[0025] Further, the heat-sealing and cutting module 3 includes: a first heat-sealing strip 31, a second heat-sealing strip 32, a fixing plate 33, a blade 34, a first cylinder 35, several heat-insulating pads 36, several spring screws 37, and two fixing seats 38; the first heat-sealing strip 31 is fixedly installed on the upper end face of the lower crossbar 45 through several heat-insulating pads 36; both ends of the fixing plate 33 are fixedly connected to the lower end face of the upper crossbar through the two fixing seats 38; the second heat-sealing strip 32 is fixedly installed on the lower end face of the fixing plate 33; the first heat-sealing strip 31 and the second heat-sealing strip 32 are arranged opposite to each other; the spring screws 37 pass through the upper crossbar 45 and are fixedly connected to the fixing plate 33. The compression spring screw 37 is located in the gap between the two fixed seats 38; a sliding groove 8 adapted to the blade 34 is provided on the opposing surfaces of the first heat sealing strip 31 and the second heat sealing strip 32; the cutting end of the blade 34 is slidably installed in the sliding groove 8; the mounting end of the blade 34 passes through the second heat sealing strip 32 and is fixedly connected to the output end of the first cylinder 35; the first cylinder 35 is fixedly installed on the upper crossbar 45; the first cylinder 35, the first heat sealing strip 31 and the second heat sealing strip 32 are respectively electrically connected to the control module 5; a temperature sensor is provided on both the first heat sealing strip 31 and the second heat sealing strip 32; the temperature sensor is respectively electrically connected to the control module 5.

[0026] In this embodiment, as Figure 1-3 As shown, both the first heat-sealing strip 31 and the second heat-sealing strip 32 are electrothermal heat-sealing strips, which are mature technologies on the market and will not be described in detail here. The first heat-sealing strip 31 and the second heat-sealing strip 32 are installed in a relative state in the gap between the two crossbars 45. During the heat-sealing and cutting operation, the two crossbars 45 move relative to each other so that the first heat-sealing strip 31 and the second heat-sealing strip 32 can work together to clamp and heat-seal the packaging bag. After the heat-sealing is completed, the first cylinder 35 drives the blade 34 to perform a downward cutting operation to cut the packaging bag, thus realizing the heat-sealing and cutting operation of the packaging bag. The operation is convenient and quick, and the production and processing efficiency is high. In this embodiment, the width of the groove 8 on the first heat-sealing strip 31 and the second heat-sealing strip 32 is much larger than the thickness of the blade 34 to ensure that the cut and the heat-sealed opening have a certain buffer distance after the packaging bag is cut. By setting a temperature sensor, the temperature of the two heat-sealing strips can be monitored in real time to avoid the temperature from being too high and affecting the heat-sealing effect.

[0027] Furthermore, the control module 5 includes: a controller and a junction box 51; the junction box 51 is mounted on the support frame 1; the controller is electrically connected to the junction box 51, the temperature sensor, the first cylinder 35, the first heat sealing strip 31, the second heat sealing strip 32 and the drive motor 41 respectively.

[0028] In this embodiment, the control module 5 includes a controller and a junction box 51. The controller can be a microcontroller, MCU, PLC, or other controller that controls the orderly operation of electrical components. In this embodiment, an MCU is selected.

[0029] Furthermore, the adjustment module 2 includes: a manual crank 21, a magnetic powder clutch 22, and a drive shaft 23; the manual crank 21 is connected to the input end of the magnetic powder clutch 22 via a rotating shaft; the output end of the magnetic powder clutch 22 is connected to the input end of the drive shaft 23; and the output end of the drive shaft 23 is fixedly connected to the bottom of the support frame 1.

[0030] In this embodiment, as Figure 1-2 As shown, when the user needs to adjust the assembly height of the support frame 1, he / she can manually rotate the hand crank 21. The hand crank 21 drives the transmission shaft 23 to lift or lower through the magnetic powder clutch 22, thereby driving the support frame 1 to lift or lower, so as to achieve the horizontal assembly height of the support frame 1.

[0031] Furthermore, a second cylinder 6 is provided on each side of the support frame 1; the output ends of the two second cylinders 6 are provided with corner inserts 7 for inserting corners into the packaging bag; the two corner inserts 7 are arranged opposite to each other.

[0032] This utility model discloses a heat-sealing and cutting mechanism with a stable overall structure. The horizontal height of the support frame 1 on the frame of the packaging machine can be adjusted by adjusting the components to adapt to the assembly of frames of different heights. The integrated heat-sealing and cutting design can effectively improve production and processing efficiency. The overall structure of the mechanism is compact and occupies a small area.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A heat-sealing and cutting mechanism, characterized in that, include: A support frame for connecting to the frame of a packaging machine, and an adjustment module for adjusting the horizontal height of the support frame; The frame is equipped with: a heat-sealing and cutting module for heat-sealing and cutting packaging bags, a drive module for driving the heat-sealing and cutting module, and a control module; the output end of the drive module is connected to the input end of the heat-sealing and cutting module; both the drive module and the heat-sealing and cutting module are electrically connected to the control module; the output end of the adjustment module is connected to the support frame.

2. The heat-sealing and cutting mechanism according to claim 1, characterized in that, The drive module includes: a drive motor, a reducer, at least one first connecting rod, at least one transmission rocker arm adapted to the first connecting rod, two crossbars, a first connecting plate, a second connecting plate, two second connecting rods, and two third connecting rods; the two crossbars are slidably mounted on the support frame from top to bottom; the drive motor and the reducer are both mounted at the bottom of the support frame; the output end of the drive motor is drively connected to the output end of the reducer; the output end of the reducer is fixedly connected to one end of the transmission rocker arm; the other end of the transmission rocker arm is hinged to one end of the first connecting rod; the other end of the first connecting rod is hinged to a crossbar located below. The middle end of the first connecting plate is rotatably connected to one side of the support frame via a pivot; one end of a second connecting rod is fixedly connected to one end of the first connecting plate, and the other end is hinged to one end of the lower crossbar; one end of another second connecting rod is hinged to the other end of the first connecting plate, and the other end is hinged to one end of the upper crossbar; the middle end of the second connecting plate is rotatably connected to the other side of the support frame via a pivot; one end of a third connecting rod is fixedly connected to one end of the second connecting plate, and the other end is hinged to the other end of the lower crossbar; one end of another third connecting rod is hinged to the other end of the second connecting plate, and the other end is hinged to the other end of the upper crossbar; the drive motor is electrically connected to the control module.

3. The heat-sealing and cutting mechanism according to claim 2, characterized in that, The heat-sealing and cutting module includes: a first heat-sealing strip, a second heat-sealing strip, a fixing plate, a blade, a first cylinder, several heat-insulating pads, several spring screws, and two fixing seats; the first heat-sealing strip is fixedly installed on the upper end face of the lower crossbar via several heat-insulating pads; both ends of the fixing plate are fixedly connected to the lower end face of the upper crossbar via the two fixing seats; the second heat-sealing strip is fixedly installed on the lower end face of the fixing plate; the first heat-sealing strip and the second heat-sealing strip are arranged opposite to each other; the spring screw passes through the upper crossbar and is fixedly connected to the fixing plate, and the spring screw is in the gap between the two fixing seats; a sliding groove adapted to the blade is opened on the opposing surfaces of the first heat-sealing strip and the second heat-sealing strip; the cutting end of the blade is slidably installed in the sliding groove; the assembly end of the blade passes through the second heat-sealing strip and is fixedly connected to the output end of the first cylinder; the first cylinder is fixedly installed on the upper crossbar; the first cylinder, the first heat-sealing strip and the second heat-sealing strip are electrically connected to the control module.

4. The heat-sealing and cutting mechanism according to claim 3, characterized in that, Temperature sensors are provided on both the first and second heat-sealing strips; the temperature sensors are electrically connected to the control module respectively.

5. A heat-sealing and cutting mechanism according to claim 4, characterized in that, The control module includes a controller and a junction box; the junction box is mounted on the support frame; the controller is electrically connected to the junction box, a temperature sensor, a first cylinder, a first heat sealing strip, a second heat sealing strip, and a drive motor.

6. A heat-sealing and cutting mechanism according to claim 5, characterized in that, The adjustment module includes: a manual crank, a magnetic powder clutch, and a drive shaft; the manual crank is connected to the input end of the magnetic powder clutch via a rotating shaft; the output end of the magnetic powder clutch is connected to the input end of the drive shaft; and the output end of the drive shaft is fixedly connected to the bottom of the support frame.

7. A heat-sealing and cutting mechanism according to claim 1, characterized in that, A second cylinder is also provided on each side of the support frame; the output end of each of the two second cylinders is provided with a corner insert for inserting the corner of the packaging bag; the two corner inserts are arranged opposite to each other.

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