Combined bag making cutter device

Abstract

The utility model provides a combined bag making cutter device which is characterized in that the combined bag making cutter device comprises a transmission mechanism, a bag pressing mechanism, a cutter mechanism and a bottom support, and the transmission mechanism is arranged on the lower portion of a rack and comprises a conveying roller and an output roller; the bottom support is fixed at the bottom of the rack, is positioned between the conveying roller and the output roller, and is provided with a groove; the bag pressing mechanism is arranged on the front side of the upper portion of the rack and comprises a pressing roller, and the pressing roller is located over the conveying roller. The cutter mechanism is arranged on the rear side of the upper portion of the rack. Comprising a bearing base fixed to a rack, a first air cylinder fixed to the bearing base, an air cylinder connecting plate driven by the first air cylinder to ascend and descend, a bag pressing plate driven by the air cylinder connecting plate to ascend and descend, a second air cylinder fixed to the air cylinder connecting plate and a serrated knife driven by the second air cylinder to ascend and descend. And the serrated knife is positioned right above the groove of the bottom support. According to the combined bag making cutter device, it is guaranteed that notches are neat and attractive, and the service life of the cutter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a combined bag-making and cutting device. Background Art

[0002] Many products are packaged in bags. On automated packaging lines, these bags typically come in a single roll of plastic strips, which are mounted on the unwinding mechanism of the packaging line. Before product packaging, the strips need to be separated into individual bags, a process known as cutting. Existing bag cutting methods use shearing techniques to cut the bag. However, these methods have the disadvantage of creating burrs when cutting along the imaginary lines, which affects the appearance. Furthermore, after prolonged use, wear on the scissor shaft can increase the misalignment of the scissors, ultimately preventing the bag from being cut open and causing it to stick. Utility Model Content

[0003] In order to solve the above problems, the present invention aims to provide a combined bag-making and cutting device to ensure neat and beautiful incisions and to increase the service life of the cutter.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides a combined bag making and cutting device, which is characterized by comprising: a transmission mechanism, a bag pressing mechanism, a cutter mechanism, and a bottom support, wherein the transmission mechanism is arranged at the lower position of a frame, comprises a conveying roller and an output roller; the bottom support is fixed at the bottom position of the frame, is located between the conveying roller and the output roller, and has a groove; the bag pressing mechanism is arranged at the upper front side position of the frame, comprises a pressing roller, and the pressing roller is located directly above the conveying roller; the cutter mechanism is arranged at the upper rear side position of the frame, comprises a load-bearing seat fixed to the frame, a first cylinder fixed on the load-bearing seat, a cylinder connecting plate driven to rise and fall by the first cylinder, a bag pressing plate driven to rise and fall by the cylinder connecting plate, a second cylinder fixed on the cylinder connecting plate, and a serrated knife driven to rise and fall by the second cylinder; the serrated knife is located directly above the groove of the bottom support.

[0006] Furthermore, in the combined bag making and cutting device provided by the present invention, it can also have the following features: wherein, the first cylinder is installed on the upper surface of the load-bearing seat, a top connecting plate is fixed on the guide rod of the first cylinder, a connecting shaft is connected and fixed to the top connecting plate, and the cylinder connecting plate is connected and fixed to the lower end of the connecting shaft; the bag pressing plate is fixed to the bottom of the cylinder connecting plate by bolts, and the bag pressing plate is provided with a strip-shaped through hole; the second cylinder is installed on the lower surface of the cylinder connecting plate; the serrated knife is installed on the tool mounting block, and the tool mounting block is connected and fixed to the guide rod of the second cylinder, and the second cylinder drives the tool mounting block to rise and fall in the strip-shaped through hole.

[0007] Furthermore, the combined bag-making and cutting device provided by the present invention may also have the following feature: a silica gel strip is provided at the bottom of the bag pressing plate.

[0008] Furthermore, the combined bag making and cutting device provided by the present invention may also have the following features: a through hole is provided on the load-bearing seat, a linear bearing is provided in the through hole, and the connecting shaft is installed in the linear bearing.

[0009] Furthermore, the combined bag making and cutting device provided by the present invention may also have the following features:

[0010] Furthermore, the combined bag-making and cutting device provided by the present invention may also have the following feature: a buffer spring is provided on the outer periphery of the connecting shaft between the top connecting plate and the load-bearing seat.

[0011] Furthermore, the combined bag-making and cutting device provided by the present invention may also have the following features: wherein the first cylinder is a single-guide-rod cylinder, and the second cylinder is a three-guide-rod cylinder.

[0012] Furthermore, in the combined bag making and cutting device provided by the present invention, it can also have the following features: wherein, the transmission mechanism also includes a motor, a driving wheel driven by the motor, a belt connected to the driving wheel, a first driven wheel and a second driven wheel connected to the belt, and a tensioning wheel connected to the belt; the first driven wheel is connected to the conveying roller; and the second driven wheel is connected to the output roller.

[0013] Furthermore, the combined bag-making and cutting device provided by the present invention may also have the following feature: the pressing roller and the conveying roller have the same shape and size.

[0014] Furthermore, in the combined bag making and cutting device provided by the present invention, it can also have the following features: wherein, the bag pressing mechanism also includes a fixed plate, a third cylinder installed on the lower surface of the fixed plate, a bracket driven to rise and fall by the third cylinder, and a pressure roller mounting shaft installed on the bracket; the pressure roller is installed on the pressure roller mounting shaft.

[0015] Furthermore, the combined bag making and cutting device provided by the present invention may also have the following features: a screw is fixedly mounted on the fixed plate, a buffer spring is provided on the outer periphery of the lower end of the screw, and the end of the buffer spring is connected and fixed to the bracket.

[0016] Functions and effects of this utility model:

[0017] This utility model provides a combined bag-making and cutting device equipped with a bag-pressing mechanism and a bag-cutting mechanism, each controlled by a separate mechanism. The bag-cutting mechanism is equipped with two pneumatic cylinders, which respectively control the rise and fall of the bag-pressing plate and the serrated blade. This ensures reliable bag-cutting, smooth cuts, and efficient bag-cutting. Furthermore, the serrated blade, as a cutter, has a long service life and, in conjunction with the bag-pressing plate and silicone strips, prevents bag sticking, improving packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the combined bag making and cutting device according to an embodiment of the present invention (from a front side perspective);

[0019] Figure 2 This is a structural diagram of the combined bag making and cutting device of an embodiment of the utility model (from the rear side);

[0020] Figure 3 It is a structural diagram of the transmission mechanism in an embodiment of the present utility model;

[0021] Figure 4 It is a structural schematic diagram of the bag pressing mechanism in an embodiment of the present utility model;

[0022] Figure 5 It is a structural schematic diagram of the cutter mechanism in an embodiment of the present utility model;

[0023] Figure 6 It is a schematic diagram of the working conditions of the bottom support and the serrated knife in the embodiment of the utility model.

[0024] Markings in the figure: 1. Transmission mechanism; 11. Motor; 12. Conveyor roller; 13. Output roller; 14. Driving wheel; 15. Tensioning wheel; 16. First driven wheel; 17. Second driven wheel; 18. Belt; 2. Bag pressing mechanism; 21. Screw; 22. Fixed plate; 23. Buffer spring; 24. Third cylinder; 25. Bracket; 26. Pressing roller; 27. Pressing roller mounting shaft; 3. Cutter mechanism; 301. First cylinder; 302. Buffer spring; 303. Second cylinder; 304. Bag pressing plate; 305. Silicone strip; 306. Serrated knife; 307. Cylinder connecting plate; 308. Load-bearing seat; 309. Top connecting plate; 310. Linear bearing; 311. Connecting shaft; 312. Bolt; 313. Tool mounting block; 4. Bottom support. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the following embodiments are combined with the accompanying drawings to specifically illustrate the technical solutions of the present invention.

[0026] <Example>

[0027] See also Figure 1 and Figure 2 The embodiment of the present utility model provides a combined bag making and cutting device, including: a transmission mechanism 1, a bag pressing mechanism 2, a cutting mechanism 3 and a bottom support 4.

[0028] See also Figures 1 to 3 The transmission mechanism 1 is arranged at the lower part of the frame. The transmission mechanism 1 includes: a motor 11, a conveying roller 12, an output roller 13, a driving wheel 14, a tensioning wheel 15, a first driven wheel 16, a second driven wheel 17, and a belt 18.

[0029] The motor 11 is fixed to the frame. The driving pulley 14 is connected to the motor shaft of the motor 11. The belt 18 is connected to the driving pulley 14. The first and second driven pulleys 16 and 17 are connected to the belt 18. The motor 11 drives the driving pulley 14 to rotate, and the driving pulley 14 drives the first and second driven pulleys 16 and 17 via the belt 18. The tensioning pulley 15 is connected to the belt 18 and is used to adjust the belt tension. The first driven pulley 16 is connected to the conveyor roller 12 via a shaft. The second driven pulley 17 is connected to the output roller 13 via a shaft. The conveyor roller 12 is used to convey the separated packaging bags to the bottom support 4. The output roller 13 is used to convey the separated packaging bags from the bottom support 4.

[0030] See also Figure 1 and Figure 4 The bag pressing mechanism 2 is arranged at the upper front side of the frame, and includes a screw 21, a fixing plate 22, a buffer spring 23, a third cylinder 24, a bracket 25, a pressing roller 26, and a pressing roller mounting shaft 27.

[0031] The fixed plate 22 is fixed to the frame. The third cylinder 24 is installed on the lower surface of the fixed plate 22. The third cylinder 24 is preferably a three-guide rod cylinder. The bracket 25 is driven up and down by the third cylinder 24. The pressure roller mounting shaft 27 is connected and fixed to the bracket 25, and the pressure roller 26 is mounted on the pressure roller mounting shaft 27. Figure 1 The pressure roller 26 is located directly above the conveyor roller 12. The pressure roller 26 has the same shape and size as the conveyor roller 12 to ensure better pressure on the packaging bag. The two screws 21 are fixed to the fixed plate 22. The buffer spring 23 is set on the outer periphery of the lower end of the screw 21. The end of the buffer spring 23 is connected and fixed to the bracket 25.

[0032] When the bag needs to be cut, the third cylinder 24 drives the bracket 25 downward, and the pressure roller 26 presses the packaging bag on the conveyor roller 12, while the buffer spring 23 is compressed. After the bag is cut, the third cylinder 24 drives the bracket 25 upward. At this time, the buffer spring 23 returns to press against the screw 21, cushioning the upward movement of the screw 21.

[0033] See also Figure 2 and Figure 5The cutting mechanism 3 is arranged at the upper rear side of the frame, and includes a first cylinder 301, a buffer spring 302, a second cylinder 303, a bag pressing plate 304, a silicone strip 305, a serrated knife 306, a cylinder connecting plate 307, a load-bearing seat 308, a top connecting plate 309, a linear bearing 310, a connecting shaft 311, a bolt 312, and a tool mounting block 313.

[0034] The load-bearing seat 308 is connected and fixed to the frame. The first cylinder 301 is installed and fixed on the upper surface of the load-bearing seat 308, and the top connecting plate 309 is connected and fixed to the guide rod of the first cylinder 301, and is driven to rise and fall by the first cylinder 301. Two connecting shafts 311 are connected and fixed to the top connecting plate 309, and the cylinder connecting plate 307 is connected and fixed to the lower end of the connecting shaft 311. The second cylinder 303 is fixed to the lower surface of the cylinder connecting plate 307, and the tool mounting block 313 is connected and fixed to the guide rod of the second cylinder 303. The serrated knife 306 is installed on the tool mounting block 313, and the serrated knife 306 is driven to rise and fall by the second cylinder 303. Preferably, the first cylinder 301 is a single-guide rod cylinder, and the second cylinder 303 is a three-guide rod cylinder.

[0035] The bag pressing plate 304 is fixed to the bottom of the cylinder connecting plate 307 by bolts 312. The bag pressing plate 304 is provided with a strip-shaped through hole, and the second cylinder 303 drives the tool mounting block 313 to rise and fall in the strip-shaped through hole. Figure 5 and Figure 6 A silicone strip 305 is provided at the bottom of the bag pressing plate 304 to facilitate separation from the packaging bag so that the packaging bag will not stick to the tooth knife.

[0036] See also Figure 5 A through hole is provided on the bearing seat 308, a linear bearing 310 is provided in the through hole, and a connecting shaft 311 is installed in the linear bearing 310. A buffer spring 302 is provided on the outer periphery of the connecting shaft 311 between the top connecting plate 309 and the bearing seat 308.

[0037] See also Figure 2 and Figure 6 The bottom support 4 is fixed at the bottom position of the frame, located between the conveying roller 12 and the output roller 13, and the serrated knife 306 is located directly above the groove of the bottom support 4. The bottom support 4 has a groove for the serrated knife 306 to enter.

[0038] When cutting bags, the first cylinder 301 drives the cylinder connecting plate 307 downward, driving the bag pressing plate 304 downward. The silicone strip 305 at the bottom of the bag pressing plate 304 first contacts and compresses the bag on the bottom support 4. Then, the second cylinder 303 drives the serrated blade 306 downward to cut the bag. After bag cutting is complete, the second cylinder 303 first drives the serrated blade 306 upward to separate the bag. Then, the first cylinder 301 drives the cylinder connecting plate 307 upward. As the cylinder connecting plate 307 descends, the top connecting plate 309 also descends, compressing the buffer spring 302. As the cylinder connecting plate 307 ascends, the top connecting plate 309 also ascends, releasing the buffer spring 302. The spring then moves upward axially, providing a buffering effect. After bag cutting is complete, the cut bags are delivered to the next station via the output roller 13.

[0039] In this embodiment, the connection between the components adopts conventional connection methods such as bolt connection, welding, plug connection, and socket connection according to actual conditions, so they are not described in detail one by one.

[0040] The combined bag-making and cutting device in this embodiment has the following advantages: using the combined bag-making and cutting device can ensure that the incision is smooth and does not stick to the bag, and the cutter has a long service life, which is conducive to improving packaging quality and improving work efficiency.

[0041] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A combined bag making and cutting device, characterized in that: include: Transmission mechanism, bag pressing mechanism, cutter mechanism, bottom support, Wherein, the transmission mechanism is arranged at the lower part of the frame and includes a conveying roller and an output roller; The bottom support is fixed at the bottom of the frame, located between the conveying roller and the output roller, and has a groove; The bag pressing mechanism is arranged at the upper front side of the frame and includes a pressing roller, which is located directly above the conveying roller; The cutter mechanism is arranged at the upper rear side of the frame, and includes a load-bearing base fixed to the frame, a first cylinder fixed to the load-bearing base, a cylinder connecting plate driven to rise and fall by the first cylinder, a bag pressing plate driven to rise and fall by the cylinder connecting plate, a second cylinder fixed to the cylinder connecting plate, and a serrated knife driven to rise and fall by the second cylinder; The serrated knife is located just above the groove of the bottom support.

2. The combined bag making and cutting device according to claim 1, characterized in that: in, The first cylinder is mounted on the upper surface of the load-bearing seat, a top connecting plate is fixed on the guide rod of the first cylinder, a connecting shaft is connected and fixed to the top connecting plate, and the cylinder connecting plate is connected and fixed to the lower end of the connecting shaft; The bag pressing plate is fixed below the cylinder connecting plate by bolt connection, and the bag pressing plate is provided with a strip-shaped through hole; The second cylinder is mounted on the lower surface of the cylinder connecting plate; The serrated knife is mounted on a tool mounting block, and the tool mounting block is connected and fixed on a guide rod of the second cylinder. The second cylinder drives the tool mounting block to rise and fall in the strip-shaped through hole.

3. The combined bag making and cutting device according to claim 2, characterized in that: in, A silica gel strip is provided at the bottom of the bag pressing plate.

4. The combined bag making and cutting device according to claim 2, characterized in that: in, A through hole is provided on the load-bearing seat, a linear bearing is provided in the through hole, and the connecting shaft is installed in the linear bearing.

5. The combined bag making and cutting device according to claim 3, characterized in that: in, A buffer spring is provided on the outer periphery of the connecting shaft between the top connecting plate and the load-bearing seat.

6. The combined bag making and cutting device according to claim 2, characterized in that: in, The first cylinder is a single-guide-rod cylinder, and the second cylinder is a three-guide-rod cylinder.

7. The combined bag making and cutting device according to claim 1, characterized in that: in, The transmission mechanism further includes a motor, a driving wheel driven by the motor, a belt connected to the driving wheel, a first driven wheel and a second driven wheel connected to the belt, and a tensioning wheel connected to the belt; The first driven wheel is connected to the conveying roller; The second driven wheel is connected to the output roller.

8. The combined bag making and cutting device according to claim 1 or 7, characterized in that: in, The pressing roller and the conveying roller have the same shape and size.

9. The combined bag making and cutting device according to claim 1, characterized in that: in, The bag pressing mechanism also includes a fixed plate, a third cylinder installed on the lower surface of the fixed plate, a bracket driven to rise and fall by the third cylinder, and a pressing roller mounting shaft installed on the bracket; The pressure roller is mounted on the pressure roller mounting shaft.

10. The combined bag making and cutting device according to claim 9, characterized in that: in, A screw rod is also fixedly mounted on the fixing plate, a buffer spring is provided on the outer periphery of the lower end portion of the screw rod, and the end of the buffer spring is connected and fixed to the bracket.

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