A cutting apparatus for a bag making machine

Abstract

The utility model discloses a cutting equipment for making bag machine, including the bottom plate, the top of bottom plate is provided with the connecting frame, and the one side of connecting frame is provided with the round hole, and is provided with the rotary column in the round hole, and the one end of rotary column is with the one side inner wall of connecting frame and is rotatoryly connected, and the outside of rotary column is fixed with the fixed wheel of sleeve joint, and the outside of fixed wheel is provided with a plurality of installation slot, and realizes the quick replacement of cutting knife through adjusting assembly, and adjusting assembly includes rotary pole, second synchronous pulley, first synchronous pulley, synchronous belt and hand wheel, when replacing cutting knife, removes screw thread column and then rotates hand wheel, and rotates rotary column and fixed wheel through synchronous belt drive, realizes the position switching of different cutting knives, compares traditional bolt fixed structure, and need not to disassemble tool, reduces operating step, solves the problem that the existing structure switches complicatedly, and the time is long, simultaneously, and a plurality of installation slots of fixed wheel outside can preinstall a variety of cutting knives, and match the stability of synchronous belt drive, satisfy the cutting demand of different material packaging bag.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine processing technology, and in particular to a cutting device for bag making machines. Background Technology

[0002] In the production process of bag making machine, the cutting equipment is the core component for achieving fixed-length separation of packaging bags. It completes the cutting through the relative movement of the blade and the material to be cut, which directly affects the edge flatness, dimensional accuracy and production efficiency of the packaging bag. Because the bag-making process involves a wide variety of materials, including films, composite films, non-woven fabrics, kraft paper and other different materials, and the thickness of the same material can vary from 0.01mm to 0.5mm, the physical properties (such as hardness, toughness and wear resistance) and thickness of different materials have significantly different requirements for the cutting edge angle, material hardness and cutting pressure of the cutting tools.

[0003] However, most existing bag-making machine cutting equipment uses a fixed installation structure for the blades, such as rigidly fastening them to the blade holder with bolts. When it is necessary to switch to cutting materials of different materials or thicknesses, special tools must be used to disassemble the fixing bolts one by one, adjust the blade position, and recalibrate. This is not only cumbersome and time-consuming, but also prone to causing a decrease in the positioning accuracy of the blade holder due to frequent disassembly and assembly, resulting in problems such as cutting deviation and rough edges. Therefore, a cutting device for bag-making machines is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a cutting device for a bag making machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cutting device for a bag-making machine includes a base plate, a connecting frame above the base plate, a circular hole on one side of the connecting frame, a rotating column inside the circular hole, one end of the rotating column being rotatably connected to the inner wall of one side of the connecting frame, a fixed wheel fixedly sleeved on the outer side of the rotating column, multiple mounting grooves on the outer side of the fixed wheel, each mounting groove containing a cutter, an alignment component on one side of the connecting frame, two fixed plates fixedly mounted on the top side of the connecting frame, an adjustment component inside the two fixed plates, and a collecting component on one side of the base plate.

[0006] Preferably, the alignment assembly includes an angle ruler fixedly mounted on one side of the connecting frame, and a pointer fixedly connected to the other end of the rotating column, with the pointer pointing to the angle ruler.

[0007] Preferably, the adjustment assembly includes a circular hole on one side of the left fixed plate, a rotating rod disposed in the circular hole, the other end of the rotating rod being rotatably connected to one side of the right fixed plate, and a second synchronous pulley and a first synchronous pulley being fixedly sleeved on the outer sides of the rotating rod and the rotating column, respectively, and the second synchronous pulley and the first synchronous pulley sharing the same synchronous belt.

[0008] Preferably, a handwheel is fixedly connected to the other end of the rotating rod. A threaded hole and multiple threaded grooves are respectively opened on one side of the handwheel and the left side of the fixed plate. A threaded post is threadedly installed in one of the threaded holes, and the other end of the threaded post is threadedly installed into the threaded groove that is aligned with one of the threaded holes.

[0009] Preferably, the collecting assembly includes a through opening on one side of a base plate, in which an inclined plate and a collecting box are fixedly installed respectively, with the inclined plate facing the collecting box. A knife groove is provided on the top side of the base plate, and the inclined plate is located on one side of the knife groove.

[0010] Preferably, a bracket is fixedly installed on one side of the base plate. The bracket is U-shaped, and a cylinder is fixedly installed on the top side of the bracket. The output end of the cylinder passes through the bracket and is fixedly connected to the top side of the connecting frame.

[0011] Preferably, a guide rod is fixedly installed inside the bracket, and a guide plate is fixedly connected to one side of the connecting frame, with the guide plate slidably sleeved on the guide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Quick cutter replacement is achieved through an adjustment assembly, which includes a rotating rod, a second synchronous pulley, a first synchronous pulley, a synchronous belt, and a handwheel. When changing the cutter, remove the threaded post and turn the handwheel. The synchronous belt drives the rotating post and the fixed pulley to rotate, thus switching the position of different cutters. Compared with the traditional bolt-fixed structure, there is no need to disassemble the cutter, reducing operation steps and solving the problems of cumbersome and time-consuming switching in the existing structure. At the same time, the multiple mounting slots on the outside of the fixed pulley can be pre-installed with various cutters. Combined with the stability of the synchronous belt drive, it meets the cutting needs of packaging bags of different materials.

[0013] 2. The alignment component and limiting structure ensure the accuracy of the cutter adjustment. The alignment component includes a pointer and an angle ruler. When adjusting, the pointer points to the angle ruler, which can accurately determine whether the cutter is aligned with the cutter groove, avoiding damage to the cutter from contact with the base plate. The threaded column limits the handwheel to prevent the cutter from deviating during cutting. The guide plate slides along the guide rod to guide the downward movement of the connecting frame, ensuring accurate cutting by the cutter. This solves the problem of decreased positioning accuracy caused by frequent disassembly and assembly in traditional structures, and reduces defects such as cutting deviation and rough edges. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 The structure of this utility model Figure 2 Partial schematic diagram of section A; Figure 4 This is a schematic diagram of the rotating column part of the structure of this utility model.

[0015] In the diagram: 1. Base plate; 2. Knife groove; 3. Bracket; 4. Cylinder; 5. Connecting frame; 6. Rotating column; 7. Fixed wheel; 8. Mounting slot; 9. Cutting blade; 10. First synchronous pulley; 11. Fixed plate; 12. Rotating rod; 13. Second synchronous pulley; 14. Synchronous belt; 15. Handwheel; 16. Threaded column; 17. Pointer; 18. Angle ruler; 19. Guide rod; 20. Guide plate; 21. Inclined plate; 22. Collection box. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1-4A cutting device for a bag-making machine includes a base plate 1, a connecting frame 5 above the base plate 1, a circular hole on one side of the connecting frame 5, a rotating column 6 inside the circular hole, one end of the rotating column 6 being rotatably connected to the inner wall of one side of the connecting frame 5, a fixed wheel 7 fixedly sleeved on the outer side of the rotating column 6, multiple mounting grooves 8 on the outer side of the fixed wheel 7, each mounting groove 8 containing a cutter 9, an alignment component on one side of the connecting frame 5, two fixed plates 11 fixedly mounted on the top side of the connecting frame 5, an adjustment component inside the two fixed plates 11, and a collecting component on one side of the base plate 1. The adjustment component includes a circular hole on one side of the left fixed plate 11, a rotating rod 12 inside the circular hole, the other end of the rotating rod 12 being rotatably connected to one side of the right fixed plate 11, and the rotating rod 12 and the rotating wheel 9 being rotatably connected to the inner wall of one side of the connecting frame 5. The outer side of the moving column 6 is fixedly sleeved with a second synchronous pulley 13 and a first synchronous pulley 10. The second synchronous pulley 13 and the first synchronous pulley 10 share the same synchronous belt 14. Holding the handwheel 15 drives the rotating rod 12 connected to it to rotate. Since the outer side of the rotating rod 12 is fixedly sleeved with the second synchronous pulley 13, and the second synchronous pulley 13 and the first synchronous pulley 10 share the same synchronous belt 14, the second synchronous pulley 13 will drive the rotating column 6 connected to it to rotate synchronously under the meshing transmission of the synchronous belt 14. The fixed wheel 7, which is equipped with multiple cutters 9, is fixedly sleeved on the outer side of the rotating column 6. Therefore, turning the handwheel 15 can realize the rotation of the cutter 9 under the meshing transmission of the synchronous belt 14. The position of the cutter 9 can be changed according to the material of the packaging bag, thereby greatly improving the practicality of cutting.

[0018] Specifically, the alignment assembly includes an angle ruler 18 fixedly installed on one side of the connecting bracket 5, and a pointer 17 fixedly connected to the other end of the rotating column 6. The pointer 17 points to the angle ruler 18. Since the pointer 17 is fixedly connected to the other end of the rotating column 6 and points to the angle ruler 18, when adjusting the position of the cutter 9, the pointer 17 can be used to determine whether the cutter 9 is accurately facing the blade groove 2, so as to avoid the situation where the cutter 9 directly contacts the base plate 1 due to errors, which would cause damage to the cutter 9.

[0019] Specifically, a handwheel 15 is fixedly connected to the other end of the rotating rod 12. A threaded hole and multiple threaded grooves are respectively opened on one side of the handwheel 15 and the left fixed plate 11. A threaded post 16 is threaded into one of the threaded holes, and the other end of the threaded post 16 is threaded into the threaded groove that is aligned with the threaded hole. By setting the threaded post 16, when the position of the cutter 9 is adjusted, the threaded hole on the handwheel 15 will be aligned with the threaded groove on the left fixed plate 11. At this time, the threaded post 16 is threaded into the threaded hole on the handwheel 15, and then the threaded post 16 is rotated to make the other end of the threaded post 16 threaded into the threaded groove that is aligned with the threaded hole, thereby realizing the fixed connection between the handwheel 15 and the left fixed plate 11, and preventing the handwheel 15 from rotating on its own during subsequent cutting. There are four threaded grooves, each corresponding to one cutter 9. With the help of the angle ruler 18, the cutter 9 can be quickly adjusted and fixed.

[0020] Specifically, the collection component includes a through opening on one side of the base plate 1, in which an inclined plate 21 and a collection box 22 are fixedly installed. The inclined plate 21 faces the collection box 22. A knife groove 2 is provided on the top side of the base plate 1, and the inclined plate 21 is located on one side of the knife groove 2. With the collection box 22 installed, after the packaging bag is cut, the cut part will slide down the inclined plate 21 into the collection box 22 for storage, which is convenient for subsequent unified processing.

[0021] Specifically, a bracket 3 is fixedly installed on one side of the base plate 1. The bracket 3 is U-shaped. A cylinder 4 is fixedly installed on the top side of the bracket 3. The output end of the cylinder 4 passes through the bracket 3 and is fixedly connected to the top side of the connecting frame 5. A guide rod 19 is fixedly installed inside the bracket 3. A guide plate 20 is fixedly connected to one side of the connecting frame 5. The guide plate 20 is slidably sleeved on the guide rod 19. By setting the cylinder 4, the cutting process of the cutter 9 can be realized by the operation of the cylinder 4. By setting the guide plate 20, the guide plate 20 can provide guidance and limit when the connecting frame 5 moves up and down, so that the cutter 9 can accurately cut the packaging bag.

[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.

[0023] In use: During operation, first move the packaging bag to be cut to the position directly above the knife groove 2, then start the cylinder 4. The operation of the cylinder 4 drives the connecting frame 5 to move downwards, and the cutter 9 below the connecting frame 5 moves downwards and toward the knife groove 2, completing the cutting operation of the packaging bag. Through the set inclined plate 21, the cut packaging bag can slide down along the inclined plate 21 and fall accurately into the collection box 22 for storage, which is convenient for subsequent unified collection and processing. When it is necessary to replace the cutter 9 to adapt to packaging bags of different materials, first remove the threaded post 16 on the handwheel 15, then hold the handwheel 15 to drive the rotating rod 12 to rotate. Since the second synchronous wheel 13 is fixedly sleeved on the outside of the rotating rod 12, and the second synchronous wheel 13 The first synchronous pulley 10 is engaged with the synchronous belt 14. Under the transmission action of the synchronous belt 14, the second synchronous pulley 13 will drive the rotating column 6 to rotate synchronously. Since the fixed wheel 7 with multiple cutters 9 is fixedly sleeved on the outside of the rotating column 6, the position of the cutter 9 can be switched by rotating the handwheel 15 through the synchronous belt 14 to adapt to different material requirements. The pointer 17 fixed at the other end of the rotating column 6 points to the angle ruler 18. During adjustment, the correspondence between the pointer 17 and the angle ruler 18 can be used to determine whether the cutter 9 is accurately aligned with the cutter groove 2, so as to avoid the cutter 9 directly contacting the base plate 1 and causing damage. After the position of the cutter 9 is adjusted, the handwheel 15 can be fixed again with the threaded column 16.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for a bag-making machine, comprising a base plate (1), characterized in that, A connecting frame (5) is provided above the base plate (1). A circular hole is provided on one side of the connecting frame (5). A rotating column (6) is provided in the circular hole. One end of the rotating column (6) is rotatably connected to the inner wall of one side of the connecting frame (5). A fixed wheel (7) is fixedly sleeved on the outer side of the rotating column (6). Multiple mounting grooves (8) are provided on the outer side of the fixed wheel (7). A cutter (9) is installed in each of the multiple mounting grooves (8). An alignment component is provided on one side of the connecting frame (5). Two fixed plates (11) are fixedly installed on the top side of the connecting frame (5). An adjustment component is provided in the two fixed plates (11). A collection component is provided on one side of the base plate (1).

2. The cutting device for a bag-making machine according to claim 1, characterized in that, The alignment assembly includes an angle ruler (18) fixedly installed on one side of the connecting frame (5), and a pointer (17) fixedly connected to the other end of the rotating column (6), with the pointer (17) pointing to the angle ruler (18).

3. The cutting device for a bag-making machine according to claim 1, characterized in that, The adjustment assembly includes a circular hole on one side of the left fixed plate (11), in which a rotating rod (12) is provided. The other end of the rotating rod (12) is rotatably connected to one side of the right fixed plate (11). The outer sides of the rotating rod (12) and the rotating column (6) are respectively fixedly sleeved with a second synchronous pulley (13) and a first synchronous pulley (10). The second synchronous pulley (13) and the first synchronous pulley (10) share the same synchronous belt (14).

4. A cutting device for a bag-making machine according to claim 3, characterized in that, The other end of the rotating rod (12) is fixedly connected to a handwheel (15). The handwheel (15) and the left fixed plate (11) are respectively provided with a threaded hole and multiple threaded grooves. A threaded column (16) is threaded in one of the threaded holes, and the other end of the threaded column (16) is threaded into the threaded groove that is aligned with one of the threaded holes.

5. A cutting device for a bag-making machine according to claim 1, characterized in that, The collection assembly includes a bottom plate (1) with a through opening on one side, and an inclined plate (21) and a collection box (22) are fixedly installed in the through opening. The inclined plate (21) faces the collection box (22). A knife groove (2) is provided on the top side of the bottom plate (1), and the inclined plate (21) is located on one side of the knife groove (2).

6. A cutting device for a bag-making machine according to claim 1, characterized in that, A bracket (3) is fixedly installed on one side of the base plate (1). The bracket (3) is U-shaped. A cylinder (4) is fixedly installed on the top side of the bracket (3). The output end of the cylinder (4) passes through the bracket (3) and is fixedly connected to the top side of the connecting frame (5).

7. A cutting device for a bag-making machine according to claim 6, characterized in that, The bracket (3) has a guide rod (19) fixedly installed inside, and a guide plate (20) is fixedly connected to one side of the connecting frame (5). The guide plate (20) is slidably sleeved on the guide rod (19).

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