Cutter roller

Abstract

The utility model discloses a cutter roller which comprises a mandrel, a roller body, blades, a positioning assembly and a locking assembly. The roller body is coaxially connected to the mandrel in a sleeved mode, the blade is installed on the outer side face of the roller body in a magnetic attraction and attached mode, a positioning assembly for positioning the installation position of the blade is arranged between the outer side face of the roller body and the blade, and the blade and the outer side face of the roller body are fixedly installed through a locking assembly. The two cutter rollers are installed side by side and rotate oppositely in a matched mode to cut a membrane material penetrating through the position between the two cutter rollers, and one cutter roller is not provided with the blade. The blade and the roller body are convenient and fast to disassemble and assemble, the blade is convenient to replace regularly, the replacement cost is low, and the blade can be tightly attached and stably and accurately installed on the roller body.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting equipment, in particular to a cutting roller. Background Art

[0002] The rotary die cutting machine is also called the rotary machine, commonly known as the rotary die cutting machine, the roller cutter or the multi-station rotary die cutting machine. It continuously rotates and cuts in the form of a roller, and is one of the most efficient equipment among the die cutting machines. The die-cut products are widely used in mobile phones, computers, LCD monitors, digital cameras, LCD backlights and other fields.

[0003] At present, circular die-cutting machines are all equipped with matching cutting rollers, which include a core shaft, a roller body sleeved on the core shaft, and a cutter integrally formed on the outer side of the roller body. Due to its frequent use, the cutting edge of the cutter is easily worn and needs to be replaced regularly. However, since the cutter and the roller body are an integrally formed structure, it is inconvenient to replace them and the replacement cost is high. Utility Model Content

[0004] The utility model aims to provide a cutting knife roller, which solves the problem that the cutting knife and the roller body of the existing cutting knife roller are an integrated structure, which makes it inconvenient to replace the cutting knife and the replacement cost is high. The blade and the roller body can be disassembled and assembled conveniently and quickly, and the blade can be replaced regularly with low replacement cost. Moreover, the blade can be tightly fitted and firmly installed on the roller body.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a cutting roller, comprising a roller body, a blade and a locking assembly;

[0007] The blade is an arc-shaped structure that is compatible with the outer side surface of the roller body. The blade is magnetically attached to the outer side surface of the roller body. The blade is fixed to the roller body via a locking assembly. The two cutting rollers are installed side by side and rotate towards each other to cooperate in cutting the film material passing through between the two cutting rollers. The blade is not installed on one of the cutting rollers.

[0008] Furthermore, a knife line is integrally formed on the outer side of the blade, and the knife line is in a spiral structure. When the blade is unfolded into a plane state, an angle formed between the length direction of the knife line and the axial direction of the roller body is 0.5-2 degrees.

[0009] Existing cutters are basically straight knives, and the lateral force acting on the film to be cut is limited, which easily leads to the situation that the film is not completely cut in the lateral direction. In the present application, the knife line on the outside of the blade is set to a spiral structure, which stabilizes the force during cutting, and the film incision is inclined, which increases the lateral force on the film and makes it easy to break. Specifically, the angle formed between the length direction of the knife line and the axial direction of the roller body is 0.5-2 degrees, preferably 1 degree, which can ensure that the lateral cutting force acting on the film is increased during cutting, and also avoid the situation where the inclination angle of the cutting surface is too large, because the inclined part of the end of the film cannot be used, resulting in excessive loss of film.

[0010] Furthermore, a limiting component for positioning the side edge of the film material to be cut is provided on the outer side surface of the roller body.

[0011] By setting the limit assembly, the function of positioning the side of the film material is added. On the one hand, it ensures that the cutter is in full contact with the film material during cutting, and the force is more stable and uniform. On the other hand, it also realizes the Y-axis positioning of the head of the new roll film material formed after cutting.

[0012] Furthermore, the limiting assembly includes two side limiting plates and a locking piece. A plurality of adjustment holes are respectively opened at the two end portions of the outer side of the roller body along the axial direction. The two side limiting plates are slidably installed on the outer side of the roller body, and the sliding direction of the side limiting plates is along the axial direction of the roller body. Positioning grooves matching the adjustment holes are respectively opened on the two side limiting plates. The locking piece passes through the positioning grooves and the adjustment holes correspondingly to position the two side limiting plates at the two ends of the outer side of the roller body.

[0013] In order to facilitate smooth and rapid adjustment of the position of the limit assembly to adapt to different specifications of film materials, a slide groove is opened on the outer side of the roller body along the axial direction. The slide groove is located next to the scale. The backs of the two side limit plates are slidably installed in the slide groove. During operation, the two side limit plates are moved to the corresponding positions in the slide groove according to the width and unwinding position of the film material, and then fixed by locking parts such as screws. In specific applications, the two side limit plates can adopt the same shape structure or different shape structures.

[0014] Furthermore, the two side limit plates have different shapes, namely a first side limit plate and a second side limit plate, the length of the first side limit plate is smaller than that of the second side limit plate, the positioning groove on the first side limit plate is a U-shaped groove opened along its length direction, the opening of the U-shaped groove is located on the side of the first side limit plate away from the second side limit plate, and the positioning groove on the second side limit plate is a waist-shaped groove opened along its length direction.

[0015] In order to simplify the operation of adjusting the limit assembly, the zero scale of the scale is aligned with one end of the knife line, and the first side limit plate is fixed on one side of the zero scale of the scale. Generally, there is no need to adjust the installation position of the first side limit plate, and only the position of the second side limit plate needs to be adjusted to achieve the purpose of limiting the side of the membrane material of different widths. Because the position of the second side limit plate is frequently adjusted, in order to increase the position adjustment range of the second side limit plate, a waist-shaped groove is opened in the length direction of the second side limit plate, which is used together with multiple adjustment holes, and the position adjustment range of the second side limit plate is larger and the adaptation range is wider. Since the first side limit plate is usually set at the zero scale of the scale, its installation space is limited, and the corresponding setting length of the first side limit plate is shorter. In order to increase the position adjustment range of the first side limit plate, a U-shaped groove is opened along the length direction of the first side limit plate, which is used together with the adjustment hole, and the installation position of the first side limit plate can be fine-tuned within a certain range near the adjustment hole.

[0016] Furthermore, a scale is provided on the outer side of the roller body along the axial direction, and the scale is located beside the limiting assembly.

[0017] By adding a scale, the limit assembly can be adjusted to the appropriate position more accurately and conveniently for membrane materials of different widths, making the equipment more adaptable.

[0018] Furthermore, a positioning component for positioning the installation position of the blade is provided on the outer side of the roller body.

[0019] The positioning component can be used to accurately locate the installation position of the blade, making it easier for staff to install the locking component later.

[0020] Specifically, the positioning assembly includes a positioning pin and a positioning hole. Positioning holes are respectively opened at the four corners of the outer side of the blade. Positioning pins are arranged in the positioning holes. The ends of the positioning pins extend into and are fixed to the roller body.

[0021] By cooperating with the positioning pins and the positioning holes at the four corners of the outer side of the blade, the installation position of the blade can be accurately positioned when installing it, which facilitates subsequent tightening operations and ensures the accuracy of the position of the blade after installation.

[0022] Furthermore, the locking assembly includes a fastener, and a plurality of first fastening holes and second fastening holes are correspondingly opened on the outer side surface of the roller body and the blade. The fastener passes through the second fastening holes and the first fastening holes correspondingly to fix the blade to the outer side surface of the roller body. The second fastening holes are located at the four corners of the outer side surface of the blade, and the second fastening holes are located on the outside, and the positioning holes are located on the inside.

[0023] Specifically, the blade is pre-positioned and magnetically mounted on the outer side of the roller body through the cooperation of the positioning hole and the positioning pin located on the inner side, and then the second fastening hole located on the outer side cooperates with the first fastening hole and the fastener to ensure that the blade is tightly fitted and firmly mounted on the outer side of the roller body, which not only realizes the pre-positioning of the blade, but also reduces the number of fasteners used. When the blade is long, a fastening hole is opened in the middle of the blade, and fasteners are installed to fix it, so as to ensure that the blade is tightly fitted and fixed on the outer side of the roller body.

[0024] Furthermore, the outer side of the roller body is wrapped with an elastic layer, and the outer side of the blade (5) located on the side of the knife line (7) is also provided with an elastic layer.

[0025] In actual use, the two cutting rollers are used together. The blades on the rollers cut the new and old film materials at the same time, and then the joints (ends) of the cut new and old film materials are clamped through the elastic layers on the outside of the two rollers. The joints of the new and old film materials are smoothly moved downward to the next work station for processing to prevent the old film material from falling directly under the action of gravity after being cut. The specific work of the next work station is to stick tape on both sides of the joints of the new and old film materials to form a flat whole.

[0026] Specifically, an elastic layer, such as rubber or foam, is also provided on the outer side of the blade on one side of the knife line. The elastic layer is bonded to the outer side of the blade, and the thickness of the elastic layer is equal to or slightly less than the thickness of the knife line. By setting, it can further ensure that the joint of the cut film material is clamped.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The utility model sets the blade as an arc structure matched with the outer side surface of the roller body, and installs the blade on the outer side surface of the roller body by magnetic attraction, which ensures that the blade is closely attached to the outer side surface of the roller body after installation, and no installation gap is generated between the two, thereby ensuring that the blade cuts the film material more stably, and then the blade is fixedly installed on the outer side of the roller body through the locking component, so that the blade is stably and accurately positioned and installed on the roller body, and the blade and the roller body can be conveniently and quickly disassembled and assembled, which is convenient for regular replacement of the cutter and reduces the replacement cost. When in use, the two cutting rollers are installed side by side and rotated in opposite directions, and the new and old film materials pass downward from between the two cutting rollers, one of the cutting rollers is equipped with a blade, and the other cutting roller is not equipped with a blade, and the new and old film materials pass downward from between the two cutting rollers, and the new and old film materials are cut by driving the cutting knife on the roller body to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of the cutting roller in the utility model;

[0031] Figure 2 It is a schematic diagram of the structure of the blade of the utility model when it is unfolded into a plane state;

[0032] Figure 3 This is a schematic diagram of the structure of the utility model when the cutting knife roller is used in combination;

[0033] Among them, the specific drawings are marked as:

[0034] Mandrel 1, roller body 2, slide groove 3, adjustment hole 4, blade 5, positioning hole 6, knife line 7, positioning assembly 8, locking assembly 9, scale 10, first side limit plate 11, second side limit plate 12, positioning groove 13, locking piece 14. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1 and Figure 2As shown, a cutting roller comprises a core shaft 1, a roller body 2, a blade 5, a positioning assembly 8 and a locking assembly 9; the roller body 2 is coaxially sleeved on the core shaft 1, the core shaft 1 and the roller body 2 can adopt a split structure or an integrally formed structure, the blade 5 is an arc structure adapted to the outer side surface of the roller body 2, specifically, the blade 5 is 1 mm thick and about 20 mm wide, the blade 5 is magnetically mounted on the outer side surface of the roller body 2, and after the blade 5 is installed, it is tightly attached to the outer side surface of the roller body 2, and no installation gap is generated between the two, thereby ensuring that the blade 5 cuts the film material more smoothly, and the blade 5 and the roller body 2 are fixedly mounted by the locking assembly 9. The blade 5 is set to an arc-shaped structure that matches the outer side of the roller body 2, and the blade 5 is magnetically mounted on the outer side of the roller body 2, ensuring that the blade 5 is tightly attached to the outer side of the roller body 2 after installation, and no installation gap is generated between the two, thereby ensuring that the blade 5 is more stable when cutting the film material. In specific applications, the blade 5 is relatively thin and made of iron material. A plurality of installation grooves are evenly arranged on the outer side of the roller body 2 corresponding to the installation position of the blade 5. A magnetic part is arranged in the installation groove, and the outer end face of the magnetic part is located on the same arc surface as the outer side of the roller body 2. The magnetic part and the blade 5 are magnetically matched, so that the blade 5 is tightly mounted on the outer side of the roller body 2. Since the width of the blade 5 is limited, the magnetic attraction between it and the roller body 5 is limited. In order to avoid the risk of the blade 5 falling due to force during cutting, the blade 5 is fixedly mounted on the outer side of the roller body 2 by the locking assembly 9, so that the blade 5 is stably and accurately positioned and mounted on the roller body 2. At the same time, the blade 5 can be easily and quickly disassembled and assembled from the roller body 2, which is convenient for regular replacement of the cutter and reduces the replacement cost. When in use, if Figure 3 As shown, two cutting rollers are installed side by side and rotate in opposite directions. The new and old film materials pass downward between the two cutting rollers. A blade is installed on one of the cutting rollers, and a blade is not installed on the other cutting roller. The new and old film materials pass downward between the two cutting rollers, and the new and old film materials are cut by driving the cutting knife 5 on the roller body 2 to rotate.

[0037] Among them, a knife line 7 is integrally formed on the outer side of the blade 5, and the knife line 7 is arranged in a spiral structure. When the blade 5 is unfolded into a plane state, the angle formed between the length direction of the knife line 7 and the axial direction of the roller body 2 is 0.5-2 degrees. Existing cutters are basically straight knives, and the lateral force between them and the film to be cut is limited, and it is easy for the film to be not completely disconnected in the lateral direction. In the present application, the knife line 7 on the outer side of the blade 5 is set to a spiral structure, which is stable during cutting, and the film incision is inclined. The lateral force of the film is increased and it is easy to break. Specifically, the angle formed between the length direction of the knife line 7 and the axial direction of the roller body 2 is 0.5-2 degrees, preferably 1 degree. This can ensure that the lateral cutting force acting on the film during cutting is increased, and it can also avoid the cutting surface from being tilted too much. The inclined part of the end of the film cannot be used, resulting in excessive loss of the film.

[0038] Among them, the outer side of the roller body 2 is provided with a limiter component for positioning the side of the film to be cut. By setting the limiter component, the function of positioning the side of the film is added, which ensures that the cutter is in full contact with the film during cutting, the force is more stable and uniform, and the cutting effect is better. On the other hand, it also realizes the Y-direction (i.e. the width direction of the film) positioning of the head of the new roll film formed after cutting.

[0039] In a specific embodiment, a scale 10 is provided on the outer side of the roller body 2 in the axial direction, and the scale 10 is located beside the limit assembly. By adding the scale 10, the limit assembly can be adjusted to a suitable position more accurately and conveniently for films of different widths, and the adaptability of the device is higher.

[0040] In a specific embodiment, the limiting assembly includes two side limiting plates and a locking member 14. A plurality of adjustment holes 4 are respectively provided at the two ends of the outer side of the roller body 2 in the axial direction. The two side limiting plates are slidably mounted on the outer side of the roller body 2, and the sliding direction of the side limiting plates is along the axial direction of the roller body 2. Positioning grooves 13 adapted to the adjustment holes 4 are respectively provided on the two side limiting plates. The locking member 14 passes through the positioning grooves 13 and the adjustment holes 4 correspondingly, and the two side limiting plates are positioned and mounted at the two ends of the outer side of the roller body 2. In order to facilitate the smooth and rapid adjustment of the position of the limiting assembly to adapt to film materials of different specifications, a slide groove 3 is provided on the outer side of the roller body 2 in the axial direction. The slide groove 3 is located next to the scale 10. The backs of the two side limiting plates are slidably mounted in the slide groove 3. During operation, the two side limiting plates are moved to the corresponding positions in the slide groove 3 according to the width and unwinding position of the film material, and then fixed by the locking member 14 such as a screw. In specific applications, the two side limiting plates can adopt the same shape structure or different shape structures.

[0041] Preferably, the two side limit plates have different shapes, namely the first side limit plate 11 and the second side limit plate 12. The length of the first side limit plate 11 is smaller than that of the second side limit plate 12. The positioning groove 13 on the first side limit plate 11 is a U-shaped groove opened along its length direction. The opening of the U-shaped groove is located on the side of the first side limit plate 11 away from the second side limit plate 12. The positioning groove 13 on the second side limit plate 12 is a waist-shaped groove opened along its length direction. In order to simplify the operation of adjusting the limit assembly, the zero scale of the scale 10 is aligned with one end of the knife line 7, and the first side limit plate 11 is fixed on the side of the zero scale of the scale 10. Generally, there is no need to adjust the installation position of the first side limit plate 11, and only the position of the second side limit plate 12 needs to be adjusted to achieve the purpose of limiting the side surfaces of membrane materials of different widths. Because the position of the second side limit plate 12 is frequently adjusted, in order to increase the position adjustment range of the second side limit plate 12, a waist-shaped groove is provided in the length direction of the second side limit plate 12, which is used together with the multiple adjustment holes 4, so that the position adjustment range of the second side limit plate 12 is larger and the adaptation range is wider. Since the first side limit plate 11 is usually set at the zero scale of the scale 10, its installation space is limited, and the corresponding setting length of the first side limit plate 11 is shorter. In order to increase the position adjustment range of the first side limit plate 11, a U-shaped groove is provided along the length direction of the first side limit plate 11, which is used together with the adjustment hole 4, and the installation position of the first side limit plate 11 can be fine-tuned within a certain range near the adjustment hole 4.

[0042] Among them, a positioning assembly 8 for positioning the installation position of the blade 5 is provided between the outer side of the roller body 2 and the blade 5. Specifically, the positioning assembly 8 includes a positioning pin and a positioning hole 6. The positioning holes 6 are respectively opened at the four corners of the outer side of the blade 5. The positioning holes 6 are provided in the positioning pins, and the ends of the positioning pins extend into and are fixed to the roller body 2. Through the cooperation of the positioning holes 6 at the four corners of the outer side of the blade 5 and the positioning pins, when the blade 5 is installed, its installation position can be accurately positioned, which is convenient for subsequent tightening operations and ensures the accuracy of the position of the blade 5 after installation.

[0043] Among them, the locking assembly 9 includes a fastener, and a plurality of first fastening holes and second fastening holes are correspondingly opened on the outer side surface of the roller body 2 and the blade 5. The fastener passes through the second fastening holes and the first fastening holes correspondingly to fix the blade 5 to the outer side surface of the roller body 2. The second fastening holes are located at the four corners of the outer side surface of the blade 5, and the second fastening holes are located on the outside, and the positioning hole 6 is located on the inside.

[0044] Specifically, the blade 5 is pre-positioned and magnetically mounted on the outer side of the roller body 2 through the cooperation of the positioning hole 6 located on the inner side and the positioning pin, and then the second fastening hole located on the outer side cooperates with the first fastening hole and the fastener to ensure that the blade 5 is tightly fitted and firmly mounted on the outer side of the roller body 2, which not only realizes the pre-positioning of the blade 5, but also reduces the number of fasteners used. When the blade 5 is long, a fastening hole is opened in the middle of the blade 5, and fasteners are installed to fix it, so as to ensure that the blade 5 is tightly fitted and fixed on the outer side of the roller body 2.

[0045] The outer side of the roller body 2 is wrapped with an elastic layer.

[0046] In actual use, two cutting rollers are used together. After the blades 5 on the roller body 2 cut the new and old film materials at the same time, the joints (ends) of the cut new and old film materials are clamped by the elastic layers on the outer sides of the two roller bodies 2, and the new and old film materials are smoothly moved downward to the next work station for processing, so as to prevent the old material heads from falling directly under the action of gravity after being cut. The specific work of the next work station is to stick tape on both sides of the joints of the new and old film materials to form a flat whole.

[0047] Specifically, an elastic layer, such as rubber or foam, is also provided on the outer side of the blade 5 on one side of the knife line 7, and the thickness of the elastic layer is equal to or slightly less than the thickness of the knife line 7. By setting, it can be further ensured that the joint of the cut film material is clamped.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting roller, characterized in that: It comprises a roller body (2), a blade (5) and a locking assembly (9); The blade (5) is an arc-shaped structure adapted to the outer side surface of the roller body (2); the blade (5) is magnetically attached to the outer side surface of the roller body (2); the blade (5) is fixed to the roller body (2) via a locking assembly (9); the two cutting rollers are installed side by side and rotate in opposite directions to cooperate in cutting the film material passing through between the two cutting rollers; the blade (5) is not installed on one of the cutting rollers.

2. The cutting roller according to claim 1, characterized in that: A knife line (7) is provided on the outer side of the blade (5), and the knife line (7) is in a spiral structure. When the blade (5) is unfolded into a plane state, the angle formed between the length direction of the knife line (7) and the axial direction of the roller body (2) is 0.5-2 degrees.

3. The cutting roller according to claim 1, characterized in that: The outer side surface of the roller body (2) is provided with a limiting component for positioning the side edge of the film material to be cut.

4. The cutting roller according to claim 3, characterized in that: The limiting assembly comprises two side limiting plates and a locking member (14); a plurality of adjustment holes (4) are respectively provided at the two ends of the outer side of the roller body (2) along the axial direction; the two side limiting plates are slidably mounted on the outer surface of the roller body (2), and the sliding direction of the side limiting plates is along the axial direction of the roller body (2); the two side limiting plates are respectively provided with positioning grooves (13) adapted to the adjustment holes (4); the locking member (14) passes through the positioning grooves (13) and the adjustment holes (4) correspondingly, so as to position and install the two side limiting plates at the two ends of the outer side of the roller body (2).

5. The cutting roller according to claim 4, characterized in that: The two side limit plates have different shapes, namely a first side limit plate (11) and a second side limit plate (12); the length of the first side limit plate (11) is smaller than that of the second side limit plate (12); the positioning groove (13) on the first side limit plate (11) is a U-shaped groove opened along its length direction; the opening of the U-shaped groove is located on the side of the first side limit plate (11) away from the second side limit plate (12); the positioning groove (13) on the second side limit plate (12) is a waist-shaped groove opened along its length direction.

6. The cutting blade roller according to any one of claims 3 to 5, characterized in that The outer side surface of the roller body (2) is provided with a scale (10) along the axial direction, and the scale (10) is located beside the limiting assembly.

7. The cutting roller according to claim 1, characterized in that: The blade (5) is made of iron material, and a plurality of mounting grooves are evenly arranged on the outer side surface of the roller body (2) corresponding to the mounting position of the blade (5). A magnetic member that magnetically cooperates with the blade (5) is arranged in the mounting groove, and the outer end surface of the magnetic member and the outer side surface of the roller body (2) are located on the same arc surface.

8. The cutting roller according to claim 1, characterized in that: The outer side surface of the roller body (2) is provided with a positioning component (8) for positioning the installation position of the blade (5), and the positioning component (8) comprises a positioning pin and a positioning hole (6). The positioning holes (6) are respectively opened at the four corners of the outer side surface of the blade (5), and the positioning pin is arranged in the positioning hole (6). The end of the positioning pin extends into and is fixed to the roller body (2).

9. The cutting roller according to claim 8, characterized in that The locking assembly (9) comprises a fastener, and a plurality of first fastening holes and second fastening holes are correspondingly provided on the outer side surface of the roller body (2) and the blade (5). The fastener passes through the second fastening holes and the first fastening holes respectively to fix the blade (5) to the outer side surface of the roller body (2), and the second fastening holes are located at the four corners of the outer side surface of the blade (5), and the second fastening holes are located on the outside, and the positioning holes (6) are located on the inside.

10. The cutting roller according to claim 1, characterized in that The outer side of the roller body (2) is wrapped with an elastic layer, and the outer side of the blade (5) located on the side of the knife line (7) is also provided with an elastic layer. The elastic layers on the outer sides of the roller bodies (2) of the two cutting rollers and the elastic layers on the outer sides of the blades (5) cooperate to clamp the ends of the cut film material and transport it smoothly to the next work station.

Images