Punching assembly of carton machine

Abstract

The utility model discloses a carton machine punching assembly which comprises a machine frame, a first driving shaft is installed on the machine frame, the first driving shaft is driven by a driving mechanism to rotate, a first roller is arranged on the first driving shaft in a sleeved mode, the first roller is a rubber roller, or a rubber mat is arranged on the periphery of the first roller. The rack is provided with a second driving shaft located above the first driving shaft, the second driving shaft is sleeved with a second roller, the second roller and the first roller are correspondingly arranged, and a punching cutter is arranged on the periphery of the second roller. The utility model not only is convenient to install, but also can ensure the installation precision.

Description

Technical Field

[0001] The utility model relates to the technical field of carton machines, in particular to a punching component of a carton machine. Background Art

[0002] Cartons are the most widely used packaging products, usually used as wrappers for goods or outer protectors for items; cartons are formed by bending cardboard during production. To facilitate manual handling of cartons, holes are usually punched on both sides of the cartons to form hand holes. Therefore, it is necessary to punch the cardboard during the carton cutting process. The punching device mainly includes an upper roller shaft and a lower roller shaft. A punching roller is installed on the upper roller shaft, and a punching knife is installed on the punching roller; a driving roller is installed on the lower roller shaft. When the punching roller and the driving roller rotate, a gap is formed. When the carton passes through the gap, the punching knife rotates with the punching roller to roll and punch the carton. However, the installation of the current punching rollers on the market is very inconvenient. It is necessary to first install the punching knife on the roller and then sleeved the roller on the roller shaft, or first sleeve the roller on the roller shaft and then install the punching knife on the roller. This not only makes the installation inconvenient but also affects the installation accuracy of the punching knife. Summary of the Utility Model

[0003] The purpose of the utility model is to design a punching component of a carton machine to solve the above-mentioned technical deficiencies.

[0004] The utility model designs a punching component of a carton machine, including a frame. A first driving shaft is installed on the frame, and the first driving shaft is driven to rotate by a driving mechanism. A first roller is sleeved on the first driving shaft. A second driving shaft corresponding to the first driving shaft is also provided on the frame. A second roller is sleeved on the second driving shaft. The second roller is arranged corresponding to the first roller, and a punching knife is provided on the outer periphery of the second roller.

[0005] Preferably, the second roller includes a first sub-roller body and a second sub-roller body. The first sub-roller body and the second sub-roller body jointly surround the second driving shaft, and the punching knife is arranged on the outer peripheral surface of the first sub-roller body and / or the second sub-roller body.

[0006] Preferably, the punching knife includes a base and a grooved knife. An installation groove is opened on the outer peripheral surface of the second roller, the base is installed in the installation groove, and the grooved knife is installed on the base.

[0007] Further optimized, the installation groove is an annular groove, and the annular groove is arranged in a surrounding manner on the outer peripheral wall of the second roller, or there are multiple installation grooves, and multiple installation grooves are arranged at intervals on the outer peripheral wall of the second roller.

[0008] Preferably, a cross-cutting knife structure is provided on the frame and is arranged in parallel with the punching assembly. The cross-cutting knife structure includes an upper knife roller and a lower knife roller that are parallel to each other. A driving device for driving the upper knife roller and the lower knife roller to rotate is provided on the frame. Upper cutting knives are arranged on the outer circumferential surface of the upper knife roller along the axial direction, and lower cutting knives that cooperate with the upper cutting knives are arranged on the outer circumferential surface of the lower knife roller. In the working state, as the upper knife roller and the lower knife roller rotate synchronously, the upper cutting knives and the lower cutting knives gradually engage from one end to the other end, thereby realizing cutting.

[0009] Further optimized, mounting holes are penetrated through corresponding positions of the first sub-roller body and the second sub-roller body, and the first sub-roller body and the second sub-roller body form a detachable connection through fasteners installed in the mounting holes.

[0010] Further optimized, the outer wall of the first roller is made of an elastic material.

[0011] Further optimized, a rubber pad is provided on the outer periphery of the first roller. The rubber pad is in a cylindrical structure and is sleeved on the outer periphery of the first roller. An installation opening is provided on the side wall of the rubber pad, and the installation opening is opened along the axial direction of the rubber pad.

[0012] Preferably, a power mechanism and a transmission mechanism are further included to drive a transmission connection between the first drive shaft and the second drive shaft. The transmission mechanism includes a belt transmission mechanism and a gear transmission mechanism. Among them, the power mechanism drives the first drive shaft to rotate through the belt transmission mechanism, and the first drive shaft drives the second drive shaft to rotate through the gear transmission mechanism.

[0013] Preferably, the orthographic projection of the punching knife on the first roller is located within the edge line of the first roller.

[0014] The technical effect of the present invention is that the second roller and the first roller are distributed up and down. A rubber pad is provided on the first roller, and a punching knife is provided on the second roller. The cardboard passes between the first roller and the second roller, and the punching knife completes punching as the second roller rotates. The second roller is formed by splicing two half sub-roller bodies, namely the first sub-roller body and the second sub-roller body. The punching knife can be installed on one of the sub-roller bodies or both sub-roller bodies. This not only facilitates the loading and unloading of the roller but also the loading and unloading of the punching knife, greatly reducing the installation difficulty and time, and ensuring the installation position accuracy between the punching knife and the second roller. Description of the Drawings

[0015] Figure 1 is the axial view of the overall structure of the present invention;

[0016] Figure 2 is the front view of the overall structure of the present invention;

[0017] Figure 3It is the structural diagram of the second roller in the present utility model;

[0018] Figure 4 It is the overall structural axial view of the punching component and the cross-cutting knife structure;

[0019] Figure 5 It is the overall structural top view of the punching component and the cross-cutting knife structure;

[0020] Figure 6 It is the overall structural front view of the punching component and the cross-cutting knife structure;

[0021] Figure 7 It is the mating sectional view between the upper knife roller and the lower knife roller in the cross-cutting knife structure.

[0022] In the figure: 1. First driving shaft; 2. First roller; 3. Second driving shaft; 4. Second roller; 41. First sub-roller body; 42. Second sub-roller body; 5. Punching knife; 51. Base; 52. Groove knife; 6. Motor; 7. Pulley; 8. Gear; 9. Rubber pad; 10. Axial mounting port; 11. Underframe; 12. Support seat; 13. Upper knife roller; 14. Lower knife roller; 15. Upper cutting knife; 16. Lower cutting knife; 17. Base; 18. Linear guide rail; 19. Slide block; 20. Installation groove; 21. Installation surface; 22. Knife seat; 23. Blade; 24. Driving device. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0024] The utility model provides a carton machine punching assembly, including a frame, a first driving shaft 1 is installed on the frame, a first roller 2 is sleeved on the first driving shaft 1, the first roller 2 is a rubber roller or a rubber pad 9 is arranged on the outer periphery, the frame is located above the first driving shaft 1 and is provided with a second driving shaft 3, the first driving shaft 1 and the second driving shaft 3 are parallel to each other, the first driving shaft 1 and the second driving shaft 3 are rotatably connected to the frame, the first driving shaft 1 and the second driving shaft 3 are connected through a transmission mechanism, the transmission mechanism includes a motor 6, two pulleys 7, a belt and two gears 8, the two gears 8 are respectively sleeved on the same end of the first driving shaft 1 and the second driving shaft 3, the two gears 8 are meshed with each other, the two pulleys 7 are respectively sleeved on the first driving shaft 1 and the driving mechanism, that is, the output end of the motor 6, the two pulleys 7 are connected by a belt, that is, the driving mechanism drives the first driving shaft 1 to rotate, the first driving shaft 1 drives the second driving shaft 3 to rotate through the gear 8 belt transmission structure, that is, the first driving shaft 1 is used as an active shaft, and the second driving shaft 3 is used as a driven shaft, so that the first driving shaft drives the second driving shaft to rotate synchronously.

[0025] The second driving shaft 3 is sleeved with a second roller 4, which is arranged corresponding to the first roller 2. Usually, the first roller 2 and the second roller 4 are located at the center of the first driving shaft 1 and the second driving shaft 3, respectively.

[0026] An axial hole for the second driving shaft 3 to pass through is formed in the center of the second roller 4 , and the second roller 4 is sleeved on the second driving shaft 3 through the axial hole.

[0027] The second roller 4 is divided into two half roller bodies along the radial dividing line, namely the first half roller body 41 and the second half roller body 42, and the axial hole is also divided into two halves accordingly. The first half roller body 41 and the second half roller body 42 can be combined into a complete second roller 4. The first half roller body 41 and the second half roller body 42 are assembled and arranged on the second driving shaft 3. This design facilitates the installation of the second roller body on the second driving shaft 3 and also facilitates the adjustment of the position of the second roller 4 on the second driving shaft 3. A punching knife 5 is provided on the outer circumference of the first half roller body 41 and / or the second half roller body 42.

[0028] The first roller body 41 and the second roller body 42 are provided with mounting holes penetrating the roller body near both radial ends, and two mounting holes are symmetrically distributed along the axial direction. When the first roller body 41 and the second roller body 42 are assembled, the mounting holes on the first roller body 41 and the second roller body 42 are aligned and locked and fixed by fasteners, so that the first roller body 41 and the second roller body 42 are detachably sleeved on the second driving shaft 3.

[0029] The rubber pad 9 is in a cylindrical structure and is axially sleeved on the outer periphery of the first roller 2. The rubber pad 9 has a certain thickness and is used to protect the first roller 2. When the first roller 2 and the second roller 4 rotate at the same time, the punching knife 5 on the second roller 4 directly contacts the rubber pad 9 on the surface of the second roller 4 during the punching process, thereby preventing the surface of the second roller 4 and the punching knife 5 from being damaged at the same time. At the same time, it plays a buffering role for the punching knife 5, thereby preventing the punched part of the cardboard from sticking together and incomplete punching.

[0030] In addition, the rubber pad 9 is provided with an axial mounting opening 10, that is, the cylindrical rubber pad 9 can be mounted or removed on the first roller 2 from the side, and the mounting opening is a square wave dividing line, so that the rubber pad 9 will not be easily offset or deformed due to squeezing or friction during rotation. In this embodiment, the rubber pad 9 is used, and the first roller 2 can also use a rubber roller, and the working principle is the same as that of the rubber pad 9.

[0031] The punching knife 5 includes a base 51 and a groove cutter 52. An axial groove body is provided on the outer peripheral surface of the first sub-roller body 41 and / or the second sub-roller body 42. The base 51 is installed in the axial groove body. A mounting hole is provided on the base 51. A mounting hole is correspondingly provided in the axial groove body. Fasteners are installed in the mounting hole so that the base 51 is fixed in the axial groove body and the groove cutter 52 is fixed outside the base 51. In this embodiment, the groove cutter 52 is a blade in the shape of a waist-shaped hole, and the long axis of the waist-shaped hole groove cutter 52 is consistent with the axial direction of the roller.

[0032] Further preferably, the axial groove passes through the two end surfaces of the first sub-roller body 41 and the second sub-roller body 42, that is, the base 51 can be slid in from the end surface direction of the sub-roller body to complete the installation. After the base 51 is installed, there is no restriction on the direction of the base 51 toward the two end surfaces, and the other two directions of the base 51 form restrictions on the base 51, so that the base 51 forms an assembly margin to prevent the base 51 from forming a position offset buffer during the rotation process.

[0033] The axial length of the first roller 2 is smaller than that of the second roller 4, which prevents the groove cutter 52 from leaving the range of the rubber pad 9 and facilitates the cardboard conveyance.

[0034] It should be noted that the orthographic projection of the punching knife 5 installed on the second roller 4 on the first roller is located within the edge line of the first roller 2 , so that the punching knife 5 can be completely installed on the second roller 4 .

[0035] The rack is also provided with a cross-cutting knife structure, which is arranged in parallel with the punching assembly. The cross-cutting knife structure includes an upper knife roller 13 and a lower knife roller 14 that are vertically distributed and parallel to each other. The upper knife roller 13 and the lower knife roller 14 are rotatably connected to the rack. The rack is provided with a driving device 24 for driving the upper knife roller 13 and the lower knife roller 14 to rotate. In this embodiment, the driving device 24 includes a driving motor and gears. The upper knife roller 13 and the lower knife roller 14 are meshed and connected through mutually cooperating gears. The output shaft of the driving motor is in transmission connection with the gear on the lower knife roller 14 through a belt transmission structure, that is, the lower knife roller 14 serves as the driving roller to drive the upper knife roller 13 to rotate.

[0036] The outer circumferential surface of the upper knife roller 13 is provided with upper cutting knives 15 extending along the axial direction of the upper knife roller 13. The outer circumferential surface of the lower knife roller 14 is provided with lower cutting knives 16 adapted to the upper cutting knives 15. It should be noted that the upper cutting knives 15 and the lower cutting knives 16 extend along the length direction of the knife roller, and the length dimension is equal to or less than the length dimension of the knife roller. The upper cutting knives 15 form left or right helical lines, and the lower cutting knives 16 form right or left helical lines, so that at the moment of shearing, the upper cutting knives 15 and the lower cutting knives 16 are engaged to form a shearing effect. At the moment of shearing, the upper cutting knives 15 and the lower cutting knives 16 rotate at the same speed as the cardboard at the same time, and gradually engage from one end to the other end to form a shearing effect. The upper cutting knives 15 and the lower cutting knives 16 have synchronous actions under the action of the driving device 24, so that the upper cutting knives 15 and the lower cutting knives 16 are tangent at the accurate time according to the transverse length requirement of the cardboard, and the knife speed is synchronized with the paper speed at the moment of shearing. Therefore, even during the shearing time, the knife roller does not need to stop, and the cut slots are all straight lines. Since the knife roller does not stop rotating during the shearing process, the shearing efficiency is higher.

[0037] The rack includes a bottom frame 11 and a support seat 12 located on the bottom frame 11. A base 17 is provided below the bottom frame 11. The two ends of the upper knife roller 13 and the lower knife roller 14 are rotatably connected to the corresponding support seats 12. Linear guides 18 are respectively provided on both sides of the base 17 where it is located on the bottom frame 11. The bottom of the bottom frame 11 is provided with sliders 19 that are slidably matched with the linear guides 18. The base 17 is provided with a power device such as a motor for driving the bottom frame 11 to slide along the linear guides 18, so as to realize the sliding connection of the rack to the base 17, so that the rack can move relative to the base 17. The linear guides 18 extend horizontally and are perpendicular to the axial direction of the knife roller, so that the upper knife roller 13 and the lower knife roller 14 synchronously perform reciprocating translations perpendicular to their own axial directions. The rack drives the upper knife roller 13 and the lower knife roller 14 to be able to synchronously translate relative to the base 17. The carton machine usually has a punching mechanism in front of the cross-cutting knife structure, and the cross-cutting knife structure can be moved closer to or away from the punching mechanism by sliding the base 17. When the cross-cutting knife structure or the punching mechanism needs to be repaired, only the whole cross-cutting knife structure needs to be moved away from the punching mechanism, which is very convenient.

[0038] Further, both the base 17 and the chassis 11 are frame structures formed by fixedly connecting profiles, I-beams or pipes, so that the base 17 and the chassis 11 not only have greater bearing capacity, but also are more stable during long-term operation.

[0039] Installation grooves 20 are provided on the outer circumferential surfaces of the upper cutter roller 13 and the lower cutter roller 14, and the upper cutter 15 and the lower cutter 16 are respectively installed in the installation grooves 20. In this embodiment, the installation groove 20 includes two installation surfaces 21 that extend spirally and are parallel to each other along the length direction of the cutter roller, and their spiral lead is relatively long. The two installation surfaces 21 form a stepped surface due to different depths. The bottoms of the upper cutter 15 and the lower cutter 16 also form stepped surfaces. When the cutter is installed, the stepped surface at the bottom of the cutter forms a limit with the stepped surface in the installation groove 20, and then it is fixed by fasteners.

[0040] Further, both the upper cutter 15 and the lower cutter 16 include a cutter holder 22 and a blade 23. Stepped surfaces are formed at the top and bottom of the cutter holder 22. The stepped surface at the bottom of the cutter holder 22 forms a limit with the installation groove 20, and the stepped surface at the top of the cutter holder 22 is used to install and limit the blade 23, and then they are all fixedly connected by fasteners.

[0041] It should also be noted that the support base 12 includes a bearing platform and support legs located at the bottom of the bearing platform. The support legs are evenly distributed at the four corners and on the bottom surface of the bearing platform. The upper and lower cutter rollers 14 and the driving device 24 are all located on the bearing platform. The support legs can play a certain role in shock absorption, making the bearing platform not only have strong bearing capacity, but also be more stable and lighter in weight.

[0042] The present utility model is not limited to the above-mentioned best embodiment. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution that is the same as or similar to the present application, it falls within the protection scope of the present utility model.

Claims

1. Carton machine punching component, characterized in that, It includes a frame, on which a first driving shaft (1) is installed. The first driving shaft (1) is driven to rotate by a driving mechanism. A first roller (2) is sleeved on the first driving shaft (1). A second driving shaft (3) corresponding to the first driving shaft (1) is also provided on the frame. A second roller (4) is sleeved on the second driving shaft (3). The second roller (4) is arranged corresponding to the first roller (2). A punching knife (5) is provided on the outer periphery of the second roller (4).

2. The punching component of the carton machine according to claim 1, characterized in that, The second roller (4) includes a first split roller body (41) and a second split roller body (42). The first split roller body (41) and the second split roller body (42) jointly surround the second driving shaft (3). The punching knife (5) is arranged on the outer peripheral surface of the first split roller body (41) and / or the second split roller body (42).

3. The punching component of the carton machine according to claim 1, characterized in that, The punching knife (5) includes a base (51) and a grooved knife (52). An installation groove is opened on the outer peripheral surface of the second roller (4). The base (51) is installed in the installation groove. The grooved knife (52) is installed on the base (51).

4. The punching assembly of the carton machine according to claim 3, wherein The installation groove is an annular groove, which is arranged in a surrounding manner on the outer peripheral wall of the second roller (4), or there are multiple installation grooves, and the multiple installation grooves are arranged at intervals on the outer peripheral wall of the second roller (4).

5. The punching assembly of the carton machine according to claim 1, characterized in that, A cross-cutting knife structure parallel to the punching assembly is provided on the frame. The cross-cutting knife structure includes a upper knife roller (13) and a lower knife roller (14) that are parallel to each other. A driving device (24) for driving the upper knife roller (13) and the lower knife roller (14) to rotate is provided on the frame. Upper cutting knives (15) distributed along the axial direction are provided on the outer circumferential surface of the upper knife roller (13). Lower cutting knives (16) cooperating with the upper cutting knives (15) are provided on the outer circumferential surface of the lower knife roller (14); in the working state, as the upper knife roller (13) and the lower knife roller (14) rotate synchronously, the upper cutting knives (15) and the lower cutting knives (16) are gradually joined from one end to the other end, so as to achieve cutting.

6. The punching assembly of the carton machine according to claim 2, characterized in that, Installation holes are penetrated through the corresponding positions of the first split roller body (41) and the second split roller body (42). The first split roller body (41) and the second split roller body (42) are detachably connected by fasteners installed in the installation holes.

7. The punching component of the carton machine according to claim 1, characterized in that, The outer wall of the first roller (2) is made of an elastic material.

8. The punching assembly of the carton machine according to claim 7, characterized in that, A rubber pad (9) is provided on the outer periphery of the first roller (2). The rubber pad (9) is of a cylindrical structure and is sleeved on the outer periphery of the first roller (2). An installation port (10) is provided on the side wall of the rubber pad (9), and the installation port (10) is opened along the axial direction of the rubber pad (9).

9. The punching assembly of the carton machine according to claim 1, characterized in that, It also includes a power mechanism and a transmission mechanism to drive the transmission connection between the first driving shaft (1) and the second driving shaft (3). The transmission mechanism includes a belt transmission mechanism and a gear transmission mechanism. Among them, the power mechanism drives the first driving shaft (1) to rotate through the belt transmission mechanism, and the first driving shaft (1) drives the second driving shaft (3) to rotate through the gear transmission mechanism.

10. The punching assembly of the carton machine according to claim 1, wherein, The orthographic projection of the punching knife (5) on the first roller (2) is located within the edge line of the first roller (2).

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