A paper bag opening device

Abstract

The utility model discloses a kind of for paper bag trepanning device, it is related to paper bag machine technical field, it includes: rack, conveying component and trepanning component;Conveying component is installed on rack, and it is used to convey raw material paper;Trepanning component includes: driver, driving shaft installed on rack, driven shaft installed on rack, transmission mechanism, driving roller coaxially fixed on driving shaft and driven roller coaxially fixed on driven shaft, driver drives driving shaft rotation, driving shaft is driven shaft synchronous rotation by transmission mechanism, driving roller is provided with cutting hole, driven roller is provided with cutting knife, cutting knife is inserted cutting hole to shear raw material paper with rotation.This utility model is by being provided with conveying component and trepanning component, by the cooperation of both, raw material paper is cut out by cutting knife of trepanning component while being conveyed forward, so as to be able to increase into paper bag machine.

Description

Technical Field

[0001] This utility model relates to the field of paper bag making technology, and in particular to a hole-opening device for paper bags. Background Technology

[0002] Paper bags are widely used in product packaging and daily life due to their advantages such as being environmentally friendly, aesthetically pleasing, and convenient to carry. For enclosed takeout packaging bags used for fried foods, ventilation holes are made in the paper bags to prevent moisture from causing the fried food to soften. Therefore, it is necessary to design a perforation device that can be integrated into existing paper bag machines, completing the ventilation hole processing during the feeding of the raw paper before the paper is folded and glued. Utility Model Content

[0003] This invention provides a paper bag opening device to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A paper bag opening device includes: a frame, a conveying component, and an opening component; The conveying components are mounted on the frame and are used to convey raw paper. The opening component includes: a driver, a drive shaft mounted on the frame, a driven shaft mounted on the frame, a transmission mechanism, a drive roller coaxially fixed on the drive shaft, and a driven roller coaxially fixed on the driven shaft. The driver drives the drive shaft to rotate, and the drive shaft drives the driven shaft to rotate synchronously in opposite directions through the transmission mechanism. The drive roller has a cutting hole, and the driven roller has a cutting blade. The cutting blade is inserted into the cutting hole as it rotates to cut the raw material paper.

[0005] Preferably, the driven roller has an arc-shaped boss on its outer periphery, and the sum of the radius of the arc-shaped boss and the radius of the driving roller is equal to the center distance between the driving shaft and the driven shaft; the cutting blade is detachably disposed in the middle of the arc-shaped boss, and when the arc-shaped boss rotates to make rolling contact with the driving roller, the cutting blade is inserted into the cutting hole.

[0006] Preferably, the arc-shaped boss has a mounting hole on its arc-shaped surface and a screw hole on its end face that connects to the mounting hole. After one end of the cutting blade is inserted into the mounting hole, it is fixed by a second set screw provided in the screw hole.

[0007] Preferably, the driven roller has two arc-shaped protrusions spaced apart on its outer periphery, and each arc-shaped protrusion is provided with a cutting blade; the driving roller has two cutting holes, and each cutting hole corresponds to a cutting blade.

[0008] Preferably, four driving rollers are spaced apart along the axial direction on the driving shaft, and four driven rollers are spaced apart along the axial direction on the driven shaft, with each of the four driven rollers corresponding to one of the four driving rollers.

[0009] Preferably, both ends of the driven shaft are mounted on the frame via an adjustment mechanism. The adjustment mechanism is used to adjust the center distance between the driven shaft and the driving shaft. The adjustment mechanism includes a mounting base, a slider, and an adjustment assembly. The mounting base is mounted on the frame and has a guide groove. The slider can slide along the line connecting the center lines of the driven shaft and the driving shaft under the guidance of the guide groove. The adjustment assembly is used to drive the slider to slide and lock the slider. The end of the driven shaft is rotatably connected to the slider.

[0010] Preferably, the adjusting assembly includes: an adjusting screw, a first locking nut, a second locking nut, and a third locking nut; one end of the adjusting screw is connected to the slider, and the other end extends out of the guide groove along the sliding direction of the slider; the first locking nut is installed on the adjusting screw and abuts against the slider; the second locking nut is installed on the adjusting screw and abuts against the side wall of the guide groove; and the third locking nut is installed on the adjusting screw and pressed against the outer wall of the mounting base.

[0011] Preferably, the slider includes a guide portion and limiting portions located on both sides of the guide portion. The guide portion is inserted into the guide groove and abuts against the side wall of the guide groove, and the limiting portions abut against the edge of the guide groove opening.

[0012] Preferably, the conveying component includes a first conveying roller and a second conveying roller. Both the first and second conveying rollers are rotatably connected to the frame and are located on opposite sides of the drive shaft. The first conveying roller, the second conveying roller, and the drive roller are tangent to the same horizontal plane.

[0013] Preferably, it also includes a storage box, which is detachably mounted on the frame and located below the drive roller, with the opening of the storage box facing the drive roller.

[0014] Beneficial effects: The paper bag opening device disclosed in this application is provided with a conveying component and an opening component. Through the cooperation of the two, the raw paper is conveyed forward while the cutting blade of the opening component cuts out the air holes, thereby increasing the air permeability in the paper bag feeding machine. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a paper bag opening device disclosed in this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a paper bag opening device disclosed in this utility model. Figure 2 ; Figure 3 for Figure 2 A magnified view of part I; Figure 4 This is a cross-sectional view of a paper bag opening device disclosed in this utility model, cut along the axis of the drive shaft. Figure 5 This is a cross-sectional view of a paper bag opening device disclosed in this utility model, cut along the axis of the driven shaft.

[0017] In the diagram: 1. Frame; 11. Left support; 12. Right support; 13. Support plate; 21. First conveyor roller; 22. Second conveyor roller; 31. Driver; 32. Drive shaft; 33. Driven shaft; 341. Drive gear; 342. Driven gear; 35. Driven roller; 36. Driven roller; 361. Arc-shaped boss; 363. Mounting hole; 364. Screw hole; 41. Mounting base; 42. Slider; 421. Guide part; 422. Limiting part; 431. Adjusting screw; 432. First locking nut; 433. Second locking nut; 434. Third locking nut; 44. Guide groove; 5. Storage box; 51. Support piece. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] A paper bag opening device, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the machine includes: a frame 1, a conveying component, and an opening component. The conveying component is mounted on the frame 1 and is used to convey raw paper. The opening component includes: a driver 31, a drive shaft 32 mounted on the frame 1, a driven shaft 33 mounted on the frame 1, a transmission mechanism, a drive roller 35 coaxially fixed on the drive shaft 32, and a driven roller 36 coaxially fixed on the driven shaft 33. The driver 31 drives the drive shaft 32 to rotate, and the drive shaft 32 drives the driven shaft 33 to rotate synchronously in the opposite direction through the transmission mechanism. The drive roller 35 has a cutting hole, and the driven roller 36 has a cutting blade. The cutting blade is inserted into the cutting hole to cut the raw paper as it rotates. This application, by setting up a conveying component and an opening component, and through the cooperation of the two, enables the raw paper to be conveyed forward while being cut by the cutting blade of the opening component to create ventilation holes, thereby increasing the efficiency of the paper bag feeding machine.

[0020] Specifically, keys are machined on the drive shaft 32 and the driven shaft 33, and corresponding keyways are machined on the drive roller 35 and the driven roller 36. The drive roller 35 and the driven roller 36 are detachably fixed by the first set screw, so that the positions of the drive roller 35 and the driven roller 36 can be adjusted.

[0021] Specifically, the frame 1 includes a left support 11 and a right support 12, which are arranged opposite to each other. A conveying component is located between the left support 11 and the right support 12, as are the drive shaft 32, the driven shaft 33, and the transmission mechanism. A support is provided on the outer side of the right support 12. The driver 31 is a motor, mounted on the support and connected to the drive shaft 32 extending out of the right support 12 via a coupling. The transmission mechanism is a gear mechanism, with the drive gear 341 and the driven gear 342 having the same number of teeth, and mounted on the drive shaft 32 and the driven shaft 33 respectively.

[0022] Preferably, the driven roller 36 has an arc-shaped boss 361 on its outer periphery. The sum of the radius of the arc-shaped boss 361 and the radius of the driving roller 35 is equal to the center distance between the driving shaft 32 and the driven shaft 33. The cutting blade is detachably disposed in the middle of the arc-shaped boss 361. When the arc-shaped boss 361 rotates to make rolling contact with the driving roller 35, the cutting blade is inserted into the cutting hole. Only when the arc-shaped boss 361 rotates to make rolling contact with the driving roller 35 can the arc-shaped boss 361 and the driving roller 35 press the raw material paper together, so that during normal conveying, the outer periphery of the driven roller 36 does not contact the driving roller 35, and the raw material paper rests on the outer periphery of the driving roller 35 and is smoothly conveyed forward under the action of the conveying components. When the arc-shaped boss 361 rotates to make rolling contact with the drive roller 35, the cutting blade contacts the raw material paper from above and continues to rotate until the cutting blade is inserted into the cutting hole. At this time, most of the raw material paper is clamped by the arc-shaped boss 361 and the drive roller 35, and the lower part is cut off under the shearing force generated by the cutting blade and the cutting hole.

[0023] Preferably, the arc-shaped boss 361 has a mounting hole 363 on its arc-shaped surface and a screw hole 364 on its end face that connects to the mounting hole 363. After one end of the cutting blade is inserted into the mounting hole 363, it is fixed by a second set screw provided in the screw hole 364. By tightening with the second set screw, the cutting blade is fixedly installed at the mounting hole 363, which facilitates disassembly and enables the maintenance and replacement of the cutting blade.

[0024] Preferably, the driven roller 36 has two arc-shaped protrusions 361 spaced apart on its outer periphery, each arc-shaped protrusion 361 being equipped with a cutting blade; the driving roller 35 has two cutting holes, each corresponding to a cutting blade. By having the cutting blades on the two arc-shaped protrusions 361 of the driven roller 36 sequentially engage with the two cutting holes of the driving roller 35, two ventilation holes can be formed on the raw material paper along the conveying direction.

[0025] Preferably, four driving rollers 35 are spaced apart along the axial direction on the driving shaft 32, and four driven rollers 36 are spaced apart along the axial direction on the driven shaft 33. The four driven rollers 36 correspond one-to-one with the four driving rollers 35. The four driving rollers 35 are divided into two groups, with the two driving rollers 35 in each group close to each other, and the two groups correspond to the areas of the raw paper used for forming the two sides of the paper bag, thereby achieving four ventilation holes on both sides of the paper bag.

[0026] Preferably, both ends of the driven shaft 33 are mounted on the frame 1 via an adjustment mechanism. The adjustment mechanism is used to adjust the center distance between the driven shaft 33 and the driving shaft 32. The adjustment mechanism includes a mounting base 41, a slider 42, and an adjustment assembly. The mounting base 41 is mounted on the frame 1 and has a guide groove 44. The slider 42 can slide along the line connecting the center lines of the driven shaft 33 and the driving shaft 32 under the guidance of the guide groove 44. The adjustment assembly is used to drive the slider 42 to slide and lock the slider 42. The end of the driven shaft 33 is rotatably connected to the slider 42. By adjusting the position of the slider 42 in the guide groove 44 through the adjustment assembly, the driven shaft 33 is driven to move, thereby adjusting the center distance between the driven shaft 33 and the driving shaft 32, so as to facilitate the adjustment of the cooperation effect between the driving roller 35 and the driven roller 36.

[0027] Preferably, the adjusting assembly includes: an adjusting screw 431, a first locking nut 432, a second locking nut 433, and a third locking nut 434. One end of the adjusting screw 431 is connected to the slider 42, and the other end extends through the guide groove 44 along the sliding direction of the slider 42. The first locking nut 432 is mounted on the adjusting screw 431 and abuts against the slider 42. The second locking nut 433 is mounted on the adjusting screw 431 and abuts against the side wall of the guide groove 44. The third locking nut 434 is mounted on the adjusting screw 431 and presses against the outer wall of the mounting base 41. The adjusting screw 431 is threadedly connected to the slider 42 and locked by the first locking nut 432. The second locking nut 433 and the third locking nut 434 lock the adjusting screw 431 onto the mounting base 41. When adjustment is required, the second locking nut 433 is loosened, and the third locking nut 434 is rotated.

[0028] Preferably, the slider 42 includes a guide portion 421 and limiting portions 422 located on both sides of the guide portion 421. The guide portion 421 is inserted into the guide groove 44 and abuts against the side wall of the guide groove 44. The limiting portions 422 abut against the edge of the groove of the guide groove 44, thereby limiting the slider 42 along the axial direction of the driven shaft 33, thereby preventing the driven shaft 33 from axially shaking and affecting the opening.

[0029] Preferably, the conveying component includes a first conveying roller 21 and a second conveying roller 22. The first conveying roller 21 and the second conveying roller 22 are rotatably connected to the frame 1 and are located on both sides of the drive shaft 32. The first conveying roller 21, the second conveying roller 22, and the drive roller 35 are tangent to the same horizontal plane, so that the raw paper is conveyed forward in the horizontal direction.

[0030] Preferably, it also includes a storage box 5, which is detachably mounted on the frame 1. The storage box 5 is located below the drive roller 35, and the opening of the storage box 5 faces the drive roller 35 to facilitate the collection of cut waste paper pieces.

[0031] Specifically, a support plate 13 is provided on the frame 1, and a support member 51 is provided on the side of the storage box 5. The support member 51 can rest on the support plate 13 and slide along the conveying direction to realize insertion and removal.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hole-opening device for paper bags, characterized in that, include: Frame (1), conveying components and opening components; The conveying component is mounted on the frame (1) and is used to convey raw paper; The opening component includes: a driver (31), a drive shaft (32) mounted on the frame (1), a driven shaft (33) mounted on the frame (1), a transmission mechanism, a drive roller (35) coaxially fixed on the drive shaft (32), and a driven roller (36) coaxially fixed on the driven shaft (33). The driver (31) drives the drive shaft (32) to rotate. The drive shaft (32) drives the driven shaft (33) to rotate synchronously in opposite directions through the transmission mechanism. The drive roller (35) has a cutting hole, and the driven roller (36) has a cutting blade. The cutting blade is inserted into the cutting hole as it rotates to cut the raw material paper.

2. The paper bag opening device according to claim 1, characterized in that, The driven roller (36) has an arc-shaped boss (361) on its outer periphery. The sum of the radius of the arc-shaped boss (361) and the radius of the driving roller (35) is equal to the center distance between the driving shaft (32) and the driven shaft (33). The cutting blade is detachably provided in the middle of the arc-shaped boss (361). When the arc-shaped boss (361) rotates to roll contact with the driving roller (35), the cutting blade is inserted into the cutting hole.

3. The paper bag opening device according to claim 2, characterized in that, The arc-shaped boss (361) has an arc-shaped surface with a mounting hole (363) and an end face with a screw hole (364) that connects to the mounting hole (363). After one end of the cutting blade is inserted into the mounting hole (363), it is fixed by a second set screw provided in the screw hole (364).

4. A paper bag opening device according to claim 2 or 3, characterized in that, The driven roller (36) has two arc-shaped protrusions (361) spaced apart on its outer periphery, and each arc-shaped protrusion (361) is provided with a cutting blade; the driving roller (35) has two cutting holes, and each cutting hole corresponds to a cutting blade.

5. A paper bag opening device according to claim 4, characterized in that, The drive shaft (32) is provided with four drive rollers (35) spaced apart along the axial direction, and the driven shaft (33) is provided with four driven rollers (36) spaced apart along the axial direction. The four driven rollers (36) correspond one-to-one with the four drive rollers (35).

6. The paper bag opening device according to claim 1, characterized in that, Both ends of the driven shaft (33) are mounted on the frame (1) through an adjustment mechanism. The adjustment mechanism is used to adjust the center distance between the driven shaft (33) and the driving shaft (32). The adjustment mechanism includes a mounting base (41), a slider (42), and an adjustment component. The mounting base (41) is mounted on the frame (1) and has a guide groove (44). The slider (42) can slide along the line connecting the center line of the driven shaft (33) and the center line of the driving shaft (32) under the guidance of the guide groove (44). The adjustment component is used to drive the slider (42) to slide and lock the slider (42). The end of the driven shaft (33) is rotatably connected to the slider (42).

7. A paper bag opening device according to claim 6, characterized in that, The adjustment assembly includes: an adjustment screw (431), a first locking nut (432), a second locking nut (433), and a third locking nut (434); one end of the adjustment screw (431) is connected to the slider (42), and the other end extends out of the guide groove (44) along the sliding direction of the slider (42); the first locking nut (432) is installed on the adjustment screw (431) and abuts against the slider (42); the second locking nut (433) is installed on the adjustment screw (431) and abuts against the side wall of the guide groove (44); and the third locking nut (434) is installed on the adjustment screw (431) and pressed against the outer wall of the mounting base (41).

8. A paper bag opening device according to claim 6, characterized in that, The slider (42) includes a guide portion (421) and a limiting portion (422) located on both sides of the guide portion (421). The guide portion (421) is inserted into the guide groove (44) and abuts against the side wall of the guide groove (44). The limiting portion (422) abuts against the edge of the groove of the guide groove (44).

9. A paper bag opening device according to claim 1, characterized in that, The conveying components include a first conveying roller (21) and a second conveying roller (22). The first conveying roller (21) and the second conveying roller (22) are rotatably connected to the frame (1) and are located on both sides of the drive shaft (32). The first conveying roller (21), the second conveying roller (22), and the drive roller (35) are tangent to the same horizontal plane.

10. A paper bag opening device according to claim 1, characterized in that, It also includes a storage box (5), which is detachably mounted on the frame (1). The storage box (5) is located below the drive roller (35), and the opening of the storage box (5) faces the drive roller (35).

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