Adhesive tape cutting device

Abstract

The utility model discloses a rubber strip cutting device which comprises a supporting frame, a belt conveying mechanism, a first transmission roller and a cutting roller, the cutting roller comprises a main blade, a plurality of sets of auxiliary blades, a main shaft and a plurality of auxiliary shafts, the main blade and the auxiliary blades are round, every two auxiliary blades form a set, and the set of auxiliary blades are symmetrically located on the two sides of the main blade. The main blade and the auxiliary blades are each provided with a main hole and a plurality of auxiliary holes, the main shaft and the auxiliary shafts penetrate through the main blade and the auxiliary blades, the main shaft is located in the main hole, the auxiliary shafts are located in the auxiliary holes, the main shaft is connected with the auxiliary blades in a sliding mode, and an inner threaded sleeve is arranged in a round hole of one of the auxiliary holes arranged in a surrounding mode. An adjusting hand wheel, a first thread and a second thread are arranged on each auxiliary shaft, the spiral direction of the first thread is opposite to that of the second thread, the first thread and the second thread are connected with the internal thread sleeves on the auxiliary blades in a matched mode respectively, and each auxiliary shaft rotates to drive the corresponding auxiliary blade to move relatively. According to the utility model, the function of accurately adjusting the cutting distance is realized, and the adjustment is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a rubber strip cutting device. Background Art

[0002] Insulating rubber strips are required in the production process of electrical equipment, but the insulating rubber sheets available on the market are all large blanket-like structures, which need to be cut into small pieces by a cutting device before use. Application No. 201510049135.1 discloses a rubber strip cutting device, which realizes long strip cutting of rubber strips by arranging multiple blades on a roller shaft. However, in actual use, rubber strips of different widths need to be used according to the situation. In this technical solution, the blades and the roller shaft are fixedly connected by a shaft sleeve, and the distance between the blades cannot be quickly and accurately adjusted, which brings great trouble to the cutting of rubber strips of different specifications and needs further improvement. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a rubber strip cutting device capable of automatically adjusting the spacing between multiple sets of blades.

[0004] The purpose of the utility model is achieved through the following technical solutions: a rubber strip cutting device, comprising a support frame, a belt conveyor mechanism, a first transmission roller, and a cutting roller, wherein the first transmission roller and the cutting roller are arranged opposite to each other up and down, the belt conveyor mechanism feeds material into the gap between the first transmission roller and the cutting roller, the first transmission roller and the cutting roller are located between the support frame, the cutting roller comprises a main blade, multiple groups of auxiliary blades, a main shaft, and multiple auxiliary shafts, the main blade and the auxiliary blade are both circular, the main blade and the auxiliary blade have the same structure, the auxiliary blades are grouped in two, the group of auxiliary blades are symmetrically located on both sides of the main blade, the one auxiliary shaft corresponds to a group of auxiliary blades, the main blade and the auxiliary blade are both provided with a main opening and multiple auxiliary openings, the main opening is located at the main opening The center of the blade, the multiple secondary openings are arranged around the main opening, the main shaft and the secondary shaft both pass through the main blade and the secondary blade, the main shaft is located in the main opening, the secondary shaft is located in the secondary opening, the main shaft is fixedly connected to the main blade, and the main shaft is slidably connected to the secondary blade, an internal thread sleeve is arranged in the circular hole of one of the secondary openings arranged around, an adjusting hand wheel, a first thread, and a second thread are arranged on the secondary shaft, the adjusting hand wheel is located at the end of the secondary shaft, the first thread and the second thread are respectively symmetrically located on the secondary shaft, the spiral directions of the first thread and the second thread are opposite, the first thread and the second thread are respectively matched and connected with the internal thread sleeves on the group of secondary blades, and the one secondary shaft rotates to drive a group of secondary blades to move relative to each other.

[0005] Furthermore, positioning rings are provided on both the main blade and the auxiliary blade. The positioning rings are provided in pairs. The positioning rings are located on both sides of the main blade and the auxiliary blade respectively. The positioning rings are provided concentrically with the main blade and the auxiliary blade, and the diameter of the positioning rings is smaller than the diameter of the main blade and the auxiliary blade.

[0006] Furthermore, the support frame is also provided with a second transmission roller, a long blade, a cylinder, a limit rod, and a fixed plate. The fixed plate is horizontally fixedly connected between the support frames, the fixed plate is located behind the cutting roller, the limit rod vertically passes through the fixed plate, the limit rod and the fixed plate are slidably connected, the cylinder is fixedly connected to the fixed plate, the output end of the cylinder and the bottom end of the limit rod are respectively fixedly connected to the long blade, and the second transmission roller is located directly below the long blade.

[0007] Furthermore, it also includes a roller mechanism, which is located behind the second transmission roller.

[0008] The utility model has the following advantages: by setting up multiple secondary shafts to drive the secondary blades to slide along the main shaft, the cutting spacing can be accurately adjusted, which is convenient for cutting rubber strips of different widths; the positioning ring arranged on the cutting blade cooperates with the first transmission roller to achieve slight squeezing of the rubber strip when the blade is cutting, thereby fixing the rubber strip and avoiding the problem of deviation and beveling of the rubber strip; the cylinder drives the long blade to move vertically up and down, thereby achieving the function of cutting the rubber strip from a long strip to a block structure; the set roller mechanism can achieve the function of straightening the rubber strip, thereby avoiding the problem of beveling caused by the rubber strip extending too long and falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view structural schematic diagram of the utility model;

[0010] Figure 2 It is a right view structural schematic diagram of the utility model;

[0011] Figure 3 This is a schematic diagram of the main cutting knife structure of the utility model;

[0012] Figure 4 It is a schematic diagram of the auxiliary cutting knife structure of the utility model.

[0013] In the figure, 1. support frame; 2. belt conveyor mechanism; 3. first transmission roller; 4. cutting roller; 5. main shaft; 6. main blade; 7. secondary blade; 8. secondary shaft; 9. main opening; 10. secondary opening; 11. internal thread sleeve; 12. first thread; 13. second thread; 14. adjusting hand wheel; 15. fixing plate; 16. long blade; 17. limiting rod; 18. cylinder; 19. second transmission roller; 20. roller mechanism; 21. positioning ring. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1-4As shown, a rubber strip cutting device includes a support frame 1, a belt conveying mechanism 2, a first transmission roller 3, a cutting roller 4, a roller mechanism 20, a second transmission roller 19, a long blade 16, a cylinder 18, a limit rod 17, and a fixed plate 15. The support frame 1 is two plate-shaped frames arranged vertically. The belt conveying mechanism 1 includes roller shafts located at both ends and belts wound around the roller shafts. The belts are connected to the roller shafts through a servo motor to drive rotation. The belt conveying mechanism 2 is a prior art. The first transmission roller 3, the cutting roller 4, the second transmission roller 19, and the long blade 16 are located between the support frame 1. The first transmission roller 3 and the cutting roller 4 are located at the right end of the support frame. The first transmission roller 3 and the cutting roller 4 are arranged opposite to each other up and down. The belt conveying mechanism 2 feeds material into the gap between the first transmission roller 3 and the cutting roller 4. The first transmission roller 3 and the second transmission roller 19 are both cylindrical roller shafts. The first transmission roller 3 and the cutting roller 4 are gear-engaged for transmission. The cutting roller 4 is driven to rotate by a coupling and a servo motor. The second transmission roller 19 is also driven to rotate by a servo motor. The driving mechanisms of the first transmission roller 3, the second transmission roller 19 and the cutting roller 4 are all prior art. The cutting roller 4 includes a main blade 6, three groups of auxiliary blades 7, a main shaft 5, and three auxiliary shafts 8. The main blade 6 and the auxiliary blade 7 are both circular and have sharp edges. The main blade 6 and the auxiliary blade 7 have the same structure. Two auxiliary blades 7 form a group. One group of auxiliary blades 7 is symmetrically located on both sides of the main blade 6. The three groups of auxiliary blades 7 are symmetrically located on both sides of the main blade 6. One auxiliary shaft 8 corresponds to a group of auxiliary blades 7. The main blade 6 and the auxiliary blade 7 are A main opening 9 and three secondary openings 10 are provided on each of the main blades 6, the main opening 9 is located at the center of the main blade 6, and the three secondary openings 10 are arranged around the main opening 9. The main shaft 5 and the secondary shaft 8 both pass through the main blade 6 and the secondary blade 7. The main shaft 5 is located in the main opening 9, and the secondary shaft 8 is located in the secondary opening 10. The main shaft 5 is fixedly connected to the main blade 6 through a sleeve and a screw. The diameter of the main shaft 5 is smaller than the diameter of the main opening 9 on the secondary blade 7. The main shaft 5 is slidably connected to the three groups of secondary blades 7. An internal thread sleeve 11 is installed in the circular hole of one of the surrounding secondary openings 10. The outer circumferential surface of the internal thread sleeve 11 is fixedly connected to the secondary blade 7 with screws. The inner circumferential surface of the internal thread sleeve 11 is provided with an internal thread, and the internal thread is matched with the thread of the secondary shaft 8, that is, an internal thread sleeve 11 is installed on each of the six secondary blades 7, and each The installation positions of the internal thread sleeves 11 on the groups of auxiliary blades 7 are the same, and the internal thread sleeves 11 on adjacent auxiliary blades 7 are staggered. The secondary shaft 8 is provided with an adjusting hand wheel 14, a first thread 12, and a second thread 13. The adjusting hand wheel 14 is welded to the end of the secondary shaft 8. The first thread 12 and the second thread 13 are symmetrically located on the secondary shaft 8, respectively. The spiral directions of the first thread 12 and the second thread 13 are opposite. The first thread 12 and the second thread 13 are matched and connected with the internal thread sleeves 11 on a group of auxiliary blades 7, respectively. A secondary shaft 8 rotates through the internal thread sleeve 11 to drive a group of auxiliary blades 7 to move relatively close or away. Positioning rings 21 are welded on the main blade 6 and the auxiliary blade 7. The positioning rings 21 are arranged in pairs. The positioning rings 21 are respectively located on both sides of the main blade 6 and the auxiliary blade 7.The positioning ring 21 is arranged concentrically with the main blade 6 and the auxiliary blade 7. The diameter of the positioning ring 21 is smaller than that of the main blade 6 and the auxiliary blade 7. The positioning ring 21 forms a slight extrusion and limiting transmission of the rubber strip. The fixed plate 15 is horizontally welded between the support frame 1. The fixed plate 15 is located behind the cutting roller 4. The limiting rod 17 vertically passes through the fixed plate 15 through the opening. A gap is provided between the limiting rod 17 and the fixed plate 15 to form a sliding connection. The cylinder 18 is connected to the fixed plate 15 by bolts. The output end of the cylinder 18 and the bottom end of the limiting rod 17 are respectively fixedly connected to the unsharpened top of the long blade 16 by bolts. The second transmission roller 19 is located directly below the long blade 16. The roller mechanism 20 is composed of two roller shafts arranged opposite to each other up and down. The roller mechanism 20 is located behind the second transmission roller 19. The roller mechanism 20 is used to straighten the transmission rubber strip.

[0018] The working principle and use method of the utility model are as follows: the belt conveyor mechanism is used to level the wound and packaged insulating rubber sheet and feed it to the left. The main blade and the auxiliary blade arranged on the cutting roller cooperate with the first transmission roller to cut the leveled rubber sheet into long strips. Then the long strips of rubber continue to move to the left and pass through the second transmission roller until they are transported to the roller mechanism. At this time, the cylinder pushes the blade to move downward and cuts the long strips of rubber into block-shaped strips. Finally, the block-shaped strips are discharged through the roller mechanism.

[0019] When the size of the block rubber strip needs to be adjusted, the first group of adjusting hand wheels is rotated, and the adjusting hand wheels drive the first group of secondary shafts to rotate. Since the first group of secondary shafts and the internal thread sleeves provided on the first group of secondary blades are threadedly matched and connected, there is a gap between the first group of secondary shafts and the second group of secondary blades and the third group of secondary blades. The first group of secondary shafts rotate to push the first group of secondary blades to slide along the main shaft, and the first group of secondary shafts cannot push the second group of secondary blades and the third group of secondary blades to move. Since the first thread and the second thread on the first group of secondary shafts rotate in opposite directions, the first group of secondary blades located on both sides of the main blade synchronously move away from the main blade, and the distance between the first group of secondary blades and the main blade is synchronously enlarged. The second group of adjusting hand wheels is rotated, and the second group of secondary blades slide along the main shaft to both sides under the push of the second group of secondary shafts, and the distance between the first group of secondary blades and the second group of secondary blades is synchronously enlarged. Similarly, the third group of adjusting hand wheels is rotated to synchronously enlarge the distance between the second group of secondary blades and the third group of secondary blades. By fine-tuning the rotation angle of the adjusting hand wheels, the three groups of secondary blades can be made to have equal spacing and synchronous enlargement functions with the main blade, thereby realizing the cutting function of rubber strips of any width.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber strip cutting device, characterized in that: The invention comprises a support frame (1), a belt conveying mechanism (2), a first transmission roller (3), and a cutting roller (4); the first transmission roller (3) and the cutting roller (4) are arranged opposite to each other in an upper and lower direction; the belt conveying mechanism (2) feeds material into a gap between the first transmission roller (3) and the cutting roller (4); the first transmission roller (3) and the cutting roller (4) are located between the support frame (1); the cutting roller (4) comprises a main blade (6), a plurality of groups of auxiliary blades (7), a main shaft (5), and a plurality of auxiliary shafts (8); the main blade ( The main blade (6) and the auxiliary blade (7) are both circular, the main blade (6) and the auxiliary blade (7) have the same structure, two auxiliary blades (7) form a group, the group of auxiliary blades (7) are symmetrically located on both sides of the main blade (6), one auxiliary shaft (8) corresponds to a group of auxiliary blades (7), the main blade (6) and the auxiliary blade (7) are both provided with a main opening (9) and a plurality of auxiliary openings (10), the main opening (9) is located at the center of the main blade (6), and the plurality of auxiliary openings (10) surround the main opening The main opening (9) is provided, the main shaft (5) and the secondary shaft (8) both pass through the main blade (6) and the secondary blade (7), the main shaft (5) is located in the main opening (9), the secondary shaft (8) is located in the secondary opening (10), the main shaft (5) is fixedly connected to the main blade (6), the main shaft (5) is slidably connected to the secondary blade (7), an internal threaded sleeve (11) is provided in a circular hole of one of the secondary openings (10) arranged around, and an adjusting hand wheel (14), a first The first thread (12) and the second thread (13) are respectively symmetrically located on the secondary shaft (8); the first thread (12) and the second thread (13) are respectively symmetrically located on the secondary shaft (8); the spiral directions of the first thread (12) and the second thread (13) are opposite; the first thread (12) and the second thread (13) are respectively matched and connected with the internal thread sleeve (11) on the group of secondary blades (7); and the secondary shaft (8) rotates to drive the group of secondary blades (7) to move relatively.

2. A rubber strip cutting device according to claim 1, characterized in that: The primary blade (6) and the secondary blade (7) are both provided with positioning rings (21). The positioning rings (21) are provided in pairs. The positioning rings (21) are respectively located on both sides of the primary blade (6) and the secondary blade (7). The positioning rings (21) are concentrically arranged with the primary blade (6) and the secondary blade (7). The diameter of the positioning ring (21) is smaller than the diameter of the primary blade (6) and the secondary blade (7).

3. The rubber strip cutting device according to claim 1, characterized in that: The support frame (1) is also provided with a second transmission roller (19), a long blade (16), a cylinder (18), a limiting rod (17), and a fixed plate (15); the fixed plate (15) is horizontally fixedly connected between the support frames (1); the fixed plate (15) is located behind the cutting roller (4); the limiting rod (17) vertically passes through the fixed plate (15); the limiting rod (17) and the fixed plate (15) are slidably connected; the cylinder (18) is fixedly connected to the fixed plate (15); the output end of the cylinder (18) and the bottom end of the limiting rod (17) are respectively fixedly connected to the long blade (16); and the second transmission roller (19) is located directly below the long blade (16).

4. A rubber strip cutting device according to claim 3, characterized in that: It also includes a counter-roller mechanism (20), wherein the counter-roller mechanism (20) is located behind the second transport roller (19).

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