Longitudinal cutting device

Abstract

The utility model discloses a longitudinal cutting device, and relates to the technical field of medical packaging bag production. The upper driving shaft is connected with the mounting frame; the driving part is in driving connection with the upper driving shaft so as to drive the upper driving shaft to rotate relative to the mounting frame; and the upper cutter assembly is arranged on the upper driving shaft, is provided with a gap for removing waste materials, and is used for abutting against a product to be subjected to die cutting so as to cut off the waste materials from the product to be subjected to die cutting. According to the technical scheme provided by the utility model, the upper cutter assembly is adopted to cut the product to be subjected to die cutting, so that the function of narrow-edge waste discharge can be realized, and the problem that waste edges remained when the product to be subjected to die cutting is cut are relatively wide is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical packaging bag production, and particularly relates to a longitudinal cutting device. Background Art

[0002] Medical packaging bags are important materials in the medical industry for packaging medical devices, consumables, tools, and other medical supplies. During the production of medical packaging bags, it is usually necessary to cut the products to be die-cut along a predetermined pattern or line to form the final product shape. Currently, the cutter device of the die-cutting machine cuts the connection part of the products to be die-cut during use, so as to obtain the final product shape.

[0003] However, when the existing die-cutting machine cuts the products to be die-cut, there is a problem that the waste edges remaining after cutting are relatively wide. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a longitudinal cutting device, aiming to solve the problem of relatively wide waste edges remaining when cutting the products to be die-cut.

[0005] To achieve the above purpose, the longitudinal cutting device proposed by the utility model includes:

[0006] A mounting frame;

[0007] An upper driving shaft, which is movably connected to the mounting frame;

[0008] A driving part, which is drivingly connected to the upper driving shaft to drive the upper driving shaft to rotate relative to the mounting frame; and

[0009] An upper cutter assembly, which is arranged on the upper driving shaft and has a gap for discharging waste. The upper cutter assembly is used to abut against the products to be die-cut to cut the waste from the products to be die-cut.

[0010] In an embodiment, the upper cutter assembly includes:

[0011] A mounting seat, at least two of which are arranged at intervals along the length direction of the upper driving shaft; and

[0012] An upper cutter, and one upper cutter is correspondingly installed on each mounting seat;

[0013] Wherein, two adjacent upper cutters are arranged at intervals to form the gap.

[0014] In an embodiment, the spacing of the gap is 8 mm to 12 mm.

[0015] In one embodiment, the longitudinal cutting device further includes a lower drive shaft and a lower cutting tool assembly provided on the lower drive shaft. The lower drive shaft is rotatably connected to the mounting bracket and is located below the upper drive shaft. There is a conveying channel between the lower drive shaft and the upper drive shaft for the product to be die-cut to pass through. The lower cutting tool assembly and the upper cutting tool cooperate to cut off the waste material.

[0016] In one embodiment, the lower cutting tool assembly includes a first lower cutting tool. The lower cutting tool has two lower cutting edges arranged at intervals along the axial direction of the lower drive shaft, and each lower cutting edge corresponds to one upper cutting tool.

[0017] In one embodiment, the longitudinal cutting device further includes an adjusting member provided on the mounting bracket. The adjusting member is connected to the upper drive shaft to enable the upper drive shaft to move along the height direction of the mounting bracket under the action of an external force. The adjusting member includes an adjusting column and a movable block provided at the end of the adjusting column. Among them, the adjusting column is movably connected to the mounting bracket, and the movable block is rotatably connected to the upper drive shaft.

[0018] In one embodiment, the adjusting member further includes an extending portion. An extending portion is provided on both side edges of the movable block facing the mounting bracket. Each extending portion extends away from the movable block and abuts against the mounting bracket.

[0019] In one embodiment, the extending portion and the movable block are integrally formed.

[0020] In one embodiment, the longitudinal cutting device further includes a support rod. The support rod is rotatably connected to the mounting bracket and is located on the side of the upper drive shaft close to the product to be die-cut, for abutting against the product to be die-cut.

[0021] In one embodiment, the longitudinal cutting device further includes:

[0022] Side cutting tools. Two side cutting tools are arranged at intervals along the length direction of the upper drive shaft, and the two side cutting tools are arranged on opposite sides of the upper cutting tool assembly; and

[0023] Second lower cutting tools. The second lower cutting tools are provided on the lower drive shaft, and each second lower cutting tool corresponds to one side cutting tool.

[0024] In the technical solution provided by the present utility model, the installation frame is provided to form the main support structure of the longitudinal cutting device, which can conveniently install the main components and auxiliary components. The upper drive shaft is connected to the installation frame, capable of transmitting power and motion to the upper cutting tool assembly, usually connected to a motor or other power source. The upper drive shaft not only transmits power but also provides positioning and support for the upper cutting tool assembly. Through the provided drive part, the upper drive shaft can be driven to rotate relative to the installation frame to achieve the cutting action. Moreover, through the provided upper cutting tool assembly, the waste of the product to be die-cut can be removed, thereby improving the overall quality of the product. Furthermore, the upper cutting tool assembly has a waste discharge gap, which can cut off the unnecessary waste with the maximum width, thus improving the material utilization rate and production efficiency. It can be understood that when the upper drive shaft rotates, the upper cutting tool assembly will rotate synchronously. Therefore, by making the upper cutting tool assembly abut against the product to be die-cut and rotating the upper drive shaft through the drive part, the rotation of the upper cutting tool assembly can be driven, and thus the removal of waste can be simply and conveniently achieved. The technical solution proposed in the embodiment of the present utility model can accurately control the width of the waste, control the width of the remaining waste within the minimum range, reduce the waste of materials, and improve the material utilization rate. At the same time, the quality of the product can be improved, and the time and workload for subsequent treatment of the waste edges can be reduced, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the longitudinal cutting device provided by the present utility model;

[0027] Figure 2 is Figure 1 a partial enlarged structure diagram of part A in

[0028] Figure 3 a partial structure diagram of an embodiment of the longitudinal cutting device provided by the present utility model.

[0029] Description of the reference numerals in the drawings:

[0030] 10. Installation frame; 20. Upper drive shaft; 30. Upper cutting tool assembly; 31. Mounting seat; 32. Upper cutting tool; 40. Lower drive shaft; 50. First lower cutting tool; 60. Adjusting member; 61. Adjusting column; 62. Movable block; 621. Extension part; 70. Support rod; 80. Side cutting tool; 90. Second lower cutting tool.

[0031] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0032] 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 the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0035] In the production process of medical packaging bags, it is usually necessary to cut the product to be die-cut along a predetermined pattern or line to form the final product shape. Since the existing cutting knife device will generate a certain width of waste during cutting, resulting in low material utilization rate, and the relatively wide waste edge may affect the product quality, further cutting is required, which affects the production efficiency.

[0036] In view of this, the embodiments of the present utility model provide a longitudinal cutting device, which can achieve the maximum-width cutting of the unnecessary material part during the die-cutting process. An upper cutting knife assembly with a gap is arranged on the upper driving shaft. When the product to be die-cut is conveyed under the upper cutting knife assembly, the gap can be used to accurately cut the waste material, so as to reduce the remaining waste edge after cutting and improve the material utilization rate and production efficiency.

[0037] To better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings.

[0038] Please refer to Figure 1 、 Figure 2 and Figure 3 A longitudinal cutting device proposed in an embodiment of the present utility model is used for, the longitudinal cutting device includes:

[0039] Mounting frame 10;

[0040] Upper drive shaft 20, the upper drive shaft 20 is movably connected to the mounting frame 10;

[0041] Drive part, the drive part is drivingly connected to the upper drive shaft 20 to drive the upper drive shaft 20 to rotate relative to the mounting frame 10; and

[0042] Upper cutting tool assembly 30, the upper cutting tool assembly 30 is arranged on the upper drive shaft 20 and has a gap for discharging waste. The upper cutting tool assembly 30 is used to abut against the product to be die-cut to cut off the waste from the product to be die-cut.

[0043] In the technical solution adopted in this embodiment, the mounting frame 10 is provided to form the main support structure of the longitudinal cutting device, which can conveniently install the main components and auxiliary components. The upper drive shaft 20 is connected to the mounting frame 10 and can transmit power and motion to the upper cutting tool assembly 30. Usually connected to a motor or other power source, the upper drive shaft 20 not only transmits power but also provides positioning and support for the upper cutting tool assembly 30. By providing the drive part, the upper drive shaft 20 can be driven to rotate relative to the mounting frame 10 to achieve the cutting action. And, by providing the upper cutting tool assembly 30, the waste of the product to be die-cut can be cut off, thereby improving the overall quality of the product. Moreover, the upper cutting tool assembly 30 has a waste discharging gap, and the unnecessary waste can be cut off with the maximum width, thereby improving the material utilization rate and production efficiency. It can be understood that when the upper drive shaft 20 rotates, the upper cutting tool assembly 30 will rotate synchronously. Therefore, by making the upper cutting tool assembly abut against the product to be die-cut, the upper drive shaft 20 can be rotated by the drive part to drive the upper cutting tool assembly 30 to rotate, so that the waste can be cut off simply and conveniently. The technical solution proposed in the embodiment of the present utility model can accurately control the width of the waste, control the width of the remaining waste within the minimum range, reduce the waste of materials, and improve the material utilization rate. At the same time, it can improve the quality of the product, reduce the time and workload of subsequent waste edge treatment, and improve the production efficiency.

[0044] Specifically, the longitudinal cutting device includes a mounting frame 10, an upper drive shaft 20, a drive part, and an upper cutting tool assembly 30.

[0045] The mounting bracket 10 can be made of metal materials such as stainless steel and iron, with a certain load-bearing capacity. It can bear the weight of the main components and auxiliary components, support the main components and auxiliary components, and maintain their stability.

[0046] The upper drive shaft 20 is rotatably connected to the mounting bracket 10. It can be rotationally connected to the mounting bracket 10 through a rotating shaft and can rotate relative to the mounting bracket 10 under the action of an external force. It can be understood that when the upper drive shaft 20 rotates, the components mounted on the upper drive shaft 20 can rotate synchronously, ensuring the coordination of each component and thus improving the overall processing accuracy. At the same time, the upper drive shaft 20 can also provide positioning and support functions. In this embodiment, the rotation direction of the upper drive shaft 20 can be the same as the conveying direction of the product to be die-cut, that is, the upper drive shaft 20 rotates forward, or it can be opposite to the conveying direction of the product to be die-cut, that is, the upper drive shaft 20 rotates reversely. Preferably, the upper drive shaft 20 rotates reversely, which can help the product to be die-cut to break, reduce the springback of the material during cutting, and at the same time, when cutting thicker or harder materials, it can provide a greater cutting force.

[0047] The driving part is used to drive the upper drive shaft 20 to rotate to achieve the cutting of the product to be die-cut. The driving part can be a servo motor. The servo motor can be connected to the upper drive shaft 20 through a rotating shaft. The servo motor can accurately control the speed and direction of the upper drive shaft 20, which can improve the working efficiency and performance of the entire mechanical equipment.

[0048] The upper cutting tool assembly 30 is used to achieve the cutting of the product to be die-cut. It can be understood that the waste can be accurately cut off through the upper cutting tool assembly 30, maintaining the integrity and quality of the product to be die-cut. The upper cutting tool assembly 30 can be a circular knife or a square knife, which is fixedly installed on the upper drive shaft 20. A waste discharge space can be formed between two circular knives or square knives. The spacing of the waste discharge space can be designed according to the width of the waste, maintaining the cutting accuracy and quality, so that the waste discharge space can effectively cut off the waste, reduce the waste edge remaining after cutting, thereby reducing the time and workload of subsequent waste edge treatment and improving production efficiency.

[0049] Further, referring to Figure 1 、 Figure 3 In an embodiment of the present utility model, the upper cutting tool assembly 30 includes:

[0050] The mounting base 31, at least two mounting bases 31 are provided at intervals along the length direction of the upper drive shaft 20; and

[0051] The upper cutting tool 32, one upper cutting tool 32 is correspondingly installed on each mounting base 31;

[0052] Wherein, two adjacent upper cutting tools 32 are arranged at intervals to form a gap.

[0053] In the technical solution adopted in this embodiment, the upper cutting knife assembly 30 may further include a mounting base 31 and an upper cutting knife 32. In this embodiment, the mounting base 31 is arranged on the upper driving shaft 20 and is used to mount the upper cutting knife 32, which can provide a stable support for the upper cutting knife 32 and ensure the stability of the upper cutting knife 32 during use. The upper cutting knife 32 is arranged on the mounting base 31 and is used to cut the connection part of the product to be die-cut to form the shape of the final product. It can be understood that the number of mounting bases 31 can be set to two, or four, or six, and can be set in double according to the number of connection parts that need to be cut on the product to be die-cut, which is not limited here. At the same time, two adjacent upper cutting knives 32 are arranged at intervals to form a gap corresponding to the width of the waste material. In this way, during the working process, the two upper cutting knives 32 can cut simultaneously, maximizing the removal of waste material and discharging it through the gap.

[0054] Further, referring to Figure 3 , in an embodiment of the present utility model, the spacing of the gap is 8 mm to 12 mm.

[0055] In the technical solution adopted in this embodiment, the gap is used to discharge waste material during the cutting process. It can be understood that during cutting, a certain length of waste material is left as a protective layer. The existence of the protective layer can make the internal sealing of the product to be die-cut more reliable and reduce leakage or unsealing caused by incomplete heat sealing. When the spacing of the gap is set to 8 mm to 12 mm, the remaining protective layer after cutting can ensure reliability and at the same time minimize the impact on subsequent operations. In this embodiment, when the gap spacing is less than 8 mm, that is, the distance between two adjacent upper cutting knives 32 is far from the edge of the sealing area of the product to be die-cut. At this time, the waste edge remaining after cutting will be wider, increasing the time and workload for subsequent waste edge treatment; when the gap spacing is greater than 12 mm, that is, the distance between two adjacent upper cutting knives 32 is close to the edge of the sealing area of the product to be die-cut. At this time, the waste edge remaining after cutting will be narrower, or the internal sealing may be cut, easily affecting the product quality.

[0056] Further, referring to Figure 1 、 Figure 3 , in an embodiment of the present utility model, the longitudinal cutting device further includes a lower driving shaft 40 and a lower cutting knife assembly arranged on the lower driving shaft 40. The lower driving shaft 40 is rotatably connected to the mounting frame 10 and is located below the upper driving shaft 20. There is a conveying channel for the product to be die-cut between the lower driving shaft 40 and the upper driving shaft 20. The lower cutting knife assembly and the upper cutting knife 32 cooperate to cut off waste material.

[0057] In the technical solution adopted in this embodiment, the longitudinal cutting device further includes a lower drive shaft 40 and a lower cutter assembly. In this embodiment, the lower drive shaft 40 can be rotatably connected to the mounting frame 10, is arranged below the upper drive shaft 20, is used for mounting the lower cutter assembly, and drives the lower cutter assembly to rotate. The lower cutter assembly is used to cooperate with the upper cutter 32 to jointly cut off the waste of the product to be die-cut. It can be understood that the lower drive shaft 40 and the upper drive shaft 20 are correspondingly arranged. In this way, the product to be die-cut can be smoothly conveyed through the conveying channel between the lower drive shaft 40 and the upper drive shaft 20. During this process, the upper cutter assembly 30 abuts against one side of the product to be die-cut close to the upper drive shaft 20, and the lower cutter assembly abuts against the other side of the product to be die-cut, and cuts the product to be die-cut at the same time, which can significantly improve the cutting speed, can complete the cutting on both sides in one operation, reduce the processing time, and the simultaneous cutting on both sides helps to ensure the consistency and symmetry of the cutting on both sides, thereby improving the dimensional accuracy and quality of the product. Moreover, the edge quality of the simultaneous cutting on both sides is relatively high, and subsequent trimming or processing work can be reduced.

[0058] Further, referring to Figure 3 , in an embodiment of the present utility model, the lower cutter assembly includes a first lower cutter 50. The lower cutter has two lower cutting edges arranged at intervals along the axial direction of the lower drive shaft 40, and each lower cutting edge corresponds to an upper cutter 32.

[0059] In the technical solution adopted in this embodiment, the lower cutter assembly may further include a first lower cutter 50. The first lower cutter 50 is mounted on the lower drive shaft 40. Two lower cutting edges are arranged at intervals along the axial direction of the lower drive shaft 40 on both sides of the first lower cutter 50. The first lower cutter 50 abuts against the product to be die-cut through the two lower cutting edges to cut off the waste. In this way, the waste can be accurately cut off, and the width of the remaining waste edge can be reduced. It can be understood that each lower cutting edge corresponds to an upper cutter 32, that is, the axial width range of the first lower cutter 50 corresponds to the spacing range of the gap, so that each lower cutting edge cooperates with an upper cutter 32 to jointly cut off the waste, thereby improving the dimensional accuracy and quality of the product.

[0060] Further, referring to Figure 1 、 Figure 2 , in an embodiment of the present utility model, the longitudinal cutting device further includes an adjusting member 60, which is arranged on the mounting frame 10. The adjusting member 60 is connected to the upper drive shaft 20 to enable the upper drive shaft 20 to move along the height direction of the mounting frame 10 under an external force. The adjusting member 60 includes an adjusting column 61 and a movable block 62 arranged at the end of the adjusting column 61. Among them, the adjusting column 61 is movably connected to the mounting frame 10, and the movable block 62 is rotatably connected to the upper drive shaft 20.

[0061] In the technical solution adopted in this embodiment, in order to adapt to die-cut products of different thicknesses and materials, in this embodiment, an adjusting member 60 may further be provided. The adjusting member 60 is arranged on the mounting frame 10, and the adjusting member 60 is connected to the upper drive shaft 20 to drive the upper drive shaft 20 to move along the height direction of the mounting frame 10 under the action of an external force. It can be understood that when the adjusting member 60 is working, that is, during the lifting movement, it can drive the upper drive shaft 20 to perform a lifting movement relative to the lower drive shaft 40, so that the longitudinal cutting depth between the upper cutting knife 32 and the first lower cutting knife 50 changes. The adjusting member 60 may include two parts, an adjusting column 61 and a movable block 62. The adjusting column 61 may be threadedly connected to the mounting frame 10. When the adjusting column 61 is rotated, the end of the adjusting column 61 will move up and down. Moreover, the threaded connection method can accurately adjust the height and is easy to operate. The movable block 62 is arranged at the end of the adjusting column 61 and is used for rotatably connecting with the upper drive shaft 20. When the adjusting column 61 rotates, it can drive the movable block 62 to move up and down, so that the upper drive shaft 20 moves up and down relative to the lower drive shaft 40 to change the spacing of the conveying channel. It should be noted that the movable block 62 and the adjusting column 61 need to be movably connected. In this way, when the adjusting column 61 rotates, it can drive the movable block 62 to move up and down without causing the movable block 62 to rotate synchronously with the adjusting column 61. The movable connection method may be that the end of the adjusting column 61 is rotatably connected to one side of the movable block 62. The movable block 62 may be set to a spherical shape or a rectangular shape.

[0062] Further, referring to Figure 2 , in an embodiment of the present utility model, the adjusting member 60 further includes an extension portion 621. An extension portion 621 is provided on both side edges of the movable block 62 facing the mounting frame 10. Each extension portion 621 extends away from the movable block 62 and abuts against the mounting frame 10.

[0063] In the technical solution adopted in this embodiment, the adjusting member 60 may further include an extension portion 621. The extension portion 621 may be a limiting protrusion or a limiting plate, which is arranged on both side edges of the movable block 62 facing the mounting frame 10 and can abut against the mounting frame 10, so as to limit the movable block 62 and make the movable block 62 move up and down along a predetermined direction. It can be understood that during the rotation of the adjusting column 61, the movable block 62 may be slightly rotated, which may cause damage to the upper drive shaft 20. Therefore, in this embodiment, the movable block 62 may be rectangular, and an extension portion 621 is provided at each of the four corners of the movable block 62. When the adjusting column 61 rotates to drive the movable block 62 to rise, two extension portions 621 at a pair of diagonals of the movable block 62 respectively abut against both sides of the mounting frame 10 to limit the rotation of the movable block 62. When the adjusting column 61 rotates to drive the movable block 62 to descend, the other two extension portions 621 respectively abut against both sides of the mounting frame 10, thereby limiting the rotation of the movable block 62.

[0064] Further, referring to Figure 2 , in an embodiment of the present utility model, the extension portion 621 and the movable block 62 are integrally formed.

[0065] In the technical solution adopted in this embodiment, the extension portion 621 and the movable block 62 are provided to be integrally formed. By setting it in this way, the number of components can be reduced, the overall design can be simplified, and the design complexity can be reduced. At the same time, the connection points between components are reduced, thereby reducing potential failure points and improving the reliability of the product. Moreover, the integral structure is usually stronger and can provide better stability and durability.

[0066] Further, referring to Figure 1 , in an embodiment of the present utility model, the longitudinal cutting device further includes a support rod 70. The support rod 70 is rotatably connected to the mounting frame 10 and is located on the side of the upper drive shaft 20 close to the product to be die-cut, for abutting against the product to be die-cut.

[0067] In the technical solution adopted in this embodiment, the provided support rod 70 can provide additional stability, reduce the deformation or displacement of the product to be die-cut during the die-cutting process, and thus ensure the cutting accuracy. And it can limit the sagging of the product to be die-cut during the die-cutting process to ensure the neatness of the cutting edge. It can be understood that an auxiliary rod can be provided on the mounting frame 10 and used in cooperation with the support rod 70 to make the product to be die-cut have sufficient tension for convenient cutting.

[0068] Further, referring to Figure 1 、 Figure 3 , in an embodiment of the present utility model, the longitudinal cutting device further includes:

[0069] Side cutting knives 80. Two side cutting knives 80 are provided at intervals along the length direction of the upper drive shaft 20, and the two side cutting knives 80 are arranged on opposite sides of the upper cutting knife assembly 30; and

[0070] Second lower cutting knives 90. The second lower cutting knives 90 are arranged on the lower drive shaft 40, and each second lower cutting knife 90 is arranged corresponding to a side cutting knife 80.

[0071] In the technical solution adopted in this embodiment, the edge cutting knives 80 provided can be used to cut off the waste materials at the edges of the product to be die-cut. It can be understood that two edge cutting knives 80 are provided at intervals along the length direction of the upper drive shaft 20, corresponding to the two edges of the product to be die-cut. While the upper cutting knife assembly 30 cuts the connection part of the product to be die-cut, the two edge cutting knives 80 respectively cut the two edges of the product to be die-cut. In this way, the positions of the two edge cutting knives 80 can be set according to the width of the product to be die-cut, so that the waste edges of the product to be die-cut can be accurately cut, improving the production efficiency. And the second lower cutting knife 90 provided can cooperate with the edge cutting knives 80 to cut the upper and lower sides of the product to be die-cut at the same time, thus improving the quality of the product to be die-cut. In this embodiment, the second lower cutting knife 90 can be set to two, corresponding to the edge cutting knives 80; it can also be set to multiple. In this way, when cutting products to be die-cut with different widths, only the positions of the edge cutting knives 80 need to be changed.

[0072] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A longitudinal cutting device, characterized in that, Comprising: Mounting bracket; Upper drive shaft, the upper drive shaft is movably connected to the mounting bracket; Drive part, the drive part is drivingly connected to the upper drive shaft to drive the upper drive shaft to rotate relative to the mounting bracket; And Upper cutter assembly, the upper cutter assembly is arranged on the upper drive shaft and has a gap for discharging waste materials, and the upper cutter assembly is used to abut against the product to be die-cut to cut the waste materials from the product to be die-cut.

2. The longitudinal cutting device according to claim 1, characterized in that, The upper cutter assembly includes: Mounting seat, at least two mounting seats are arranged at intervals along the length direction of the upper drive shaft; and Upper cutter, each mounting seat is correspondingly provided with one upper cutter; Wherein, two adjacent upper cutters are arranged at intervals to form the gap.

3. The longitudinal cutting device according to claim 2, characterized in that, The spacing of the gap is 8 mm to 12 mm.

4. The longitudinal cutting device according to claim 2, characterized in that, The longitudinal cutting device further includes a lower drive shaft and a lower cutter assembly arranged on the lower drive shaft. The lower drive shaft is rotatably connected to the mounting bracket and is located below the upper drive shaft. There is a conveying channel for the product to be die-cut between the lower drive shaft and the upper drive shaft, and the lower cutter assembly and the upper cutter cooperate to cut the waste materials.

5. The longitudinal cutting device according to claim 4, characterized in that The lower cutter assembly includes a first lower cutter, and the lower cutter has two lower cutting edges arranged at intervals along the axial direction of the lower drive shaft, and each lower cutting edge corresponds to one upper cutter.

6. The longitudinal cutting device according to claim 1, characterized in that, The longitudinal cutting device further includes an adjusting member arranged on the mounting bracket. The adjusting member is connected to the upper drive shaft to enable the upper drive shaft to move along the height direction of the mounting bracket under the action of an external force. The adjusting member includes an adjusting column and a movable block arranged at the end of the adjusting column. Wherein, the adjusting column is movably connected to the mounting bracket, and the movable block is rotatably connected to the upper drive shaft.

7. The longitudinal cutting device according to claim 6, characterized in that, The adjusting member further includes an extension portion. An extension portion is provided on both side edges of the movable block facing the mounting bracket. Each extension portion extends away from the movable block and abuts against the mounting bracket.

8. The longitudinal cutting device according to claim 7, wherein The extension portion and the movable block are integrally formed.

9. The longitudinal cutting device according to claim 1, characterized in that The longitudinal cutting device further includes a support rod, the support rod is rotatably connected to the mounting bracket and is located on the side of the upper drive shaft close to the product to be die-cut for abutting against the product to be die-cut.

10. The longitudinal cutting device according to claim 4, characterized in that, The longitudinal cutting device further includes: Edge cutters, two edge cutters are arranged at intervals along the length direction of the upper drive shaft, and the two edge cutters are arranged on opposite sides of the upper cutter assembly; and Second lower cutter, the second lower cutter is arranged on the lower drive shaft, and each second lower cutter corresponds to one edge cutter.

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