Shearing device for rubber tape

Abstract

The invention discloses a shearing device for a rubber tape, and relates to the technical field of rubber tapes. A safety cover is mounted on the outer side of a movable shearing knife, and the movable shearing knife is always located in the safety cover in the process that the movable shearing knife is matched with a fixed shearing knife to shear the rubber tape; the arranged knife blocking frame can be attached to the upper surface of the rubber tape under the gravity action of the knife blocking frame, a gap is prevented from being formed between the rubber tape and the cloth feeding opening, and therefore the situation that fingers stretch into the gap to cause injury is avoided; the inner wall of the safety cover is fixedly connected with the knife sharpening bar through the torsional spring, the knife sharpening bar is in contact with the movable shear knife, and the knife edge of the movable shear knife can be repeatedly in contact with the knife sharpening bar in the process that the movable shear knife is repeatedly opened and closed to perform shearing action due to the fact that the connection between the knife sharpening bar and the safety cover has certain elasticity; therefore, the knife edge of the movable shear knife is always kept sharp, and the shearing effect is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber tapes, and in particular to a shearing device for rubber tapes. Background Art

[0002] Rubber tapes are widely used in many industrial production and daily life fields. For example, they play an important role in connection and fixing in packaging, transportation, and handicrafts. In the processing of rubber tapes, the cutting process is an extremely critical link. Accurate cutting can ensure that the length of the rubber tape meets specific requirements, thereby ensuring the effectiveness and reliability of subsequent use.

[0003] Traditional rubber tape cutting methods are usually relatively crude, and in most cases, scissors are used for manual cutting. However, in actual applications, it is found that many existing rubber tape cutting devices have many problems. The cutting structure of many rubber tape cutting devices is completely exposed to the outside world, and the shearing knife has a long stroke when in action. In the case of high-speed cutting or improper operation, it is very easy to cause accidental injuries to the operator, posing a great safety hazard. Summary of the invention

[0004] The purpose of the present application is to provide a rubber tape shearing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a rubber tape shearing device, comprising a workbench and a shearing structure, the shearing structure comprising a movable shearing knife and a fixed shearing knife, the workbench is provided with a chip removal hole, the fixed shearing knife is fixedly connected to the inner side of the chip removal hole, the movable shearing knife is located on the upper side of the workbench, and the movable shearing knife and the fixed shearing knife are staggered, the upper end of the workbench is connected to a driving mechanism for driving the movable shearing knife to rotate, the outer cover of the movable shearing knife is provided with a safety cover, and the safety cover is fixedly connected to the workbench.

[0006] Through the above arrangement: the debris generated by shearing the rubber tape is directly discharged from the chip discharge hole, the upper end surface of the fixed shearing knife is flush with the upper end surface of the workbench, the movable shearing knife is located on the upper side of the workbench, and the movable shearing knife and the fixed shearing knife are staggered to achieve the movable shearing knife cooperating with the fixed shearing knife to shear the rubber tape, and the opening and closing operation of the movable shearing knife is always performed inside the safety cover, thereby effectively protecting the personal safety of the operator and other related personnel, and improving safety.

[0007] Preferably, the upper end surface of the fixed shearing knife is flush with the upper end surface of the workbench, and the lower end of the workbench is detachably connected to a chip collecting basket, and the chip collecting basket is located at the chip discharge hole.

[0008] Through the above arrangement, the debris generated by shearing the rubber tape is directly discharged from the chip discharge hole.

[0009] Preferably, a cloth letting-in opening is provided at the end of the safety cover close to the fixed shearing knife, a knife-blocking structure is provided at the cloth letting-in opening, and the knife-blocking structure is connected to the safety cover.

[0010] Through the above arrangement, the opening and closing operation of the movable shearing knife is always performed inside the safety cover, thereby effectively protecting the personal safety of the operator and other related personnel, and improving safety.

[0011] Preferably, the knife blocking structure includes a knife blocking frame and a limiting structure, the knife blocking frame is located at the cloth letting opening, the limiting structure includes a shifting block fixedly connected to the knife blocking frame and a through hole arranged on the safety cover, and the shifting block is slidably connected to the inner side of the through hole.

[0012] Through the above-mentioned arrangement: the cloth letting opening arranged at the end of the safety cover close to the fixed shearing knife facilitates the passage of the rubber tape, and the knife blocking frame will fit with the upper surface of the rubber tape under the action of its own gravity, avoiding the presence of a gap between the rubber tape and the cloth letting opening, thereby preventing fingers from being inserted into the gap and causing injuries.

[0013] Preferably, the inner wall of the safety cover is fixedly connected with a sharpening rod via a torsion spring, and the sharpening rod is in contact with the movable shearing knife.

[0014] Through the above arrangement: since there is a certain elasticity in the connection between the sharpening rod and the safety cover, the blade of the movable shear knife will repeatedly contact the sharpening rod during the process of repeated opening and closing of the movable shear knife to perform shearing actions, thereby always keeping the blade of the movable shear knife sharp and the shearing action more stable.

[0015] Preferably, the outer cover of the driving mechanism is provided with a power box, the driving mechanism includes a driving motor and a reduction structure, the driving motor is fixedly connected to the inner wall of the power box, and the output end of the driving motor is connected to one end of the movable shearing knife through the reduction structure.

[0016] Preferably, the deceleration structure includes a first gear and a second gear that are meshed with each other, and the diameter of the second gear is larger than the diameter of the first gear. The first gear is fixedly connected to the output end of the driving motor, and the second gear is fixedly connected to the movable shearing knife via a rotating shaft. The rotating shaft passes through the safety cover and is rotatably connected to the safety cover.

[0017] Through the above arrangement, the electric drive motor cooperates with the first gear and the second gear to make the opening and closing action of the movable shearing knife more stable.

[0018] Preferably, a connecting plate is horizontally arranged just above one side of the top of the workbench, a threaded rod is rotatably installed between the top of the workbench and one end of the bottom of the connecting plate, a limiting rod is fixedly installed between the top of the workbench and the other end of the bottom of the connecting plate, a rotating motor is fixedly installed on the top of the connecting plate, the output shaft of the rotating motor is fixedly connected to one end of the threaded rod, the threaded rod and one end of the circumference of the limiting rod are both sleeved with sliding sleeves, the inner wall of one of the sliding sleeves is sleeved with the threaded rod through a thread, and the ends of the two sliding sleeves close to each other are fixedly installed with mounting groove plates, and support plates are slidably installed between the inner walls on both sides of the two mounting groove plates, a buffer spring is fixedly installed between the top of the support plate and the corresponding inner wall of the top of the mounting groove plate, and a number of rotating rollers are fixedly installed with equal distances between the ends of the two support plates close to each other.

[0019] Through the above arrangement: the rotating motor can drive the threaded rod to rotate, and due to the limiting effect of the limit rod, the two sliding sleeves can only move axially along the threaded rod, thereby driving the two mounting groove plates to move up or down. After the rotating roller contacts the surface of the rubber tape, the mounting groove plate continues to move down, and the buffer spring is compressed to increase the pressure of the rotating roller on the rubber angle surface, so that the rotating roller can better adapt to the conveying requirements of rubber tapes of different thicknesses. During the conveying process of the rubber tape, the rotating roller can pre-flatten the rubber tape to improve the flatness of the rubber tape, so that the rubber tape is convenient for subsequent cutting.

[0020] In summary, the technical effects and advantages of the present invention are as follows: 1. In the present invention, a safety cover is installed on the outer side of the movable shearing knife. When the rubber tape is cut, the movable shearing knife cooperates with the fixed shearing knife to cut the rubber tape, and the movable shearing knife is always located inside the safety cover, thereby effectively protecting the personal safety of the operator and other related personnel, and the safety is better. The knife blocking frame is arranged to fit with the upper surface of the rubber tape under the action of its own gravity, avoiding a gap between the rubber tape and the cloth letting mouth, thereby avoiding fingers from being inserted into the gap and causing injuries.

[0021] 2. In the present invention, a sharpening rod is fixedly connected to the inner wall of the safety cover through a torsion spring, and the sharpening rod is in contact with the movable shear knife. Since there is a certain elasticity in the connection between the sharpening rod and the safety cover, the blade of the movable shear knife will repeatedly contact the sharpening rod during the process of repeated opening and closing of the movable shear knife to perform shearing actions, thereby always keeping the blade of the movable shear knife sharp and making the shearing action more stable.

[0022] 3. In the present invention, by providing a driving mechanism, the driving motor cooperates with the first gear and the second gear to make the opening and closing action of the movable shearing knife more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment; Figure 2 is a schematic diagram of the three-dimensional structure of the back side of this embodiment; Figure 3 This is a schematic diagram of the three-dimensional structure of the power box in this embodiment; Figure 4 This is a schematic diagram of the structure in the present embodiment when the safety cover is removed; Figure 5 is a schematic diagram of the cutaway structure of the safety cover in this embodiment; Figure 6 It is a schematic diagram of the three-dimensional structure of the support plate in this embodiment.

[0025] In the figure: 1. workbench; 2. movable shearing knife; 3. fixed shearing knife; 4. chip removal hole; 5. safety cover; 51. cloth outlet; 52. knife stop frame; 53. shift block; 54. through hole; 55. sharpening rod; 6. power box; 7. driving motor; 8. first gear; 9. second gear; 10. chip collection basket; 11. connecting plate; 12. threaded rod; 13. limit rod; 14. rotating motor; 15. sliding sleeve; 16. mounting slot plate; 17. support plate; 18. buffer spring; 19. rotating roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] Example: Reference Figure 1-3 A rubber tape shearing device shown includes a workbench 1 and a shearing structure, the shearing structure includes a movable shearing knife 2 and a fixed shearing knife 3, a chip removal hole 4 is provided on the workbench 1, the fixed shearing knife 3 is fixedly connected to the inner side of the chip removal hole 4, and the debris generated by shearing the rubber tape is directly discharged from the chip removal hole 4, the upper end surface of the fixed shearing knife 3 is flush with the upper end surface of the workbench 1, the movable shearing knife 2 is located on the upper side of the workbench 1, and the movable shearing knife 2 and the fixed shearing knife 3 are staggered to enable the movable shearing knife 2 to cooperate with the fixed shearing knife 3 to shear the rubber tape.

[0030] The outer cover of the movable shearing knife 2 is provided with a safety cover 5, which is fixedly connected to the workbench 1. The opening and closing operation of the movable shearing knife 2 is always performed inside the safety cover 5, thereby effectively protecting the personal safety of the operator and other related personnel, and improving safety.

[0031] A cloth letting opening 51 is provided at the end of the safety cover 5 near the fixed shearing knife 3 to facilitate the passage of the rubber tape. A knife blocking structure is provided at the cloth letting opening 51, and the knife blocking structure includes a knife blocking frame 52 and a limiting structure. The knife blocking frame 52 is located at the cloth letting opening 51, and the limiting structure includes a shifting block 53 fixedly connected to the knife blocking frame 52 and a through hole 54 provided on the safety cover 5. The shifting block 53 is slidably connected to the inner side of the through hole 54. The knife blocking frame 52 will fit with the upper surface of the rubber tape under the action of its own gravity, avoiding a gap between the rubber tape and the cloth letting opening 51, thereby avoiding injuries caused by fingers being inserted into the gap.

[0032] Furthermore, the inner wall of the safety cover 5 is fixedly connected with a sharpening rod 55 through a torsion spring, and the sharpening rod 55 is in contact with the movable shear knife 2. Since there is a certain elasticity in the connection between the sharpening rod 55 and the safety cover 5, the blade of the movable shear knife 2 will repeatedly contact the sharpening rod 55 during the process of repeated opening and closing of the movable shear knife 2 to perform shearing actions, thereby always keeping the blade of the movable shear knife 2 sharp and making the shearing action more stable.

[0033] The upper end of the workbench 1 is connected to a driving mechanism for driving the movable shearing knife 2 to rotate. The outer cover of the driving mechanism is provided with a power box 6. The driving mechanism includes a driving motor 7 and a reduction structure. The driving motor 7 is fixedly connected to the inner wall of the power box 6. The reduction structure includes a first gear 8 and a second gear 9 that are meshed with each other, and the diameter of the second gear 9 is larger than the diameter of the first gear 8. The first gear 8 is fixedly connected to the output end of the driving motor 7, and the second gear 9 is fixedly connected to the movable shearing knife 2 through a rotating shaft. The rotating shaft passes through the safety cover 5 and is rotatably connected to the safety cover 5. The driving motor 7 cooperates with the first gear 8 and the second gear 9 to make the opening and closing action of the movable shearing knife 2 more stable.

[0034] The lower end of the workbench 1 is detachably connected with a chip collecting basket 10, and the chip collecting basket 10 is located at the chip discharge hole 4, and the debris discharged from the chip discharge hole 4 is collected in the chip collecting basket 10, which is convenient for centralized cleaning.

[0035] A connecting plate 11 is horizontally arranged just above one side of the top of the workbench 1, a threaded rod 12 is rotatably installed between the top of the workbench 1 and one end of the bottom of the connecting plate 11, a limiting rod 13 is fixedly installed between the top of the workbench 1 and the other end of the bottom of the connecting plate 11, a rotating motor 14 is fixedly installed on the top of the connecting plate 11, the output shaft of the rotating motor 14 is fixedly connected to one end of the threaded rod 12, and one end of the circumference of the threaded rod 12 and the limiting rod 13 are both sleeved with sliding sleeves 15, the inner wall of one sliding sleeve 15 is sleeved with the threaded rod 12 through a thread, and the ends of the two sliding sleeves 15 close to each other are fixedly installed with mounting groove plates 16, and support plates 17 are slidably installed between the inner walls on both sides of the two mounting groove plates 16, a buffer spring 18 is fixedly installed between the top of the support plate 17 and the corresponding inner wall of the top of the mounting groove plate 16, and a plurality of rotating rollers 19 are fixedly installed with equal spacing between the ends of the two support plates 17 close to each other, so as to realize the pre-flattening of the rubber tape by the rotating rollers 19.

[0036] The working principle of the present invention is as follows: the safety cover 5 is installed on the outer side of the movable shearing knife 2. When cutting the rubber tape, the rubber tape is passed through the cloth letting opening 51 at the lower end of the safety cover 5. The driving mechanism is used to drive the movable shearing knife 2 to rotate. The movable shearing knife 2 cooperates with the fixed shearing knife 3 to cut the rubber tape. The opening and closing operation of the movable shearing knife 2 is always carried out inside the safety cover 5, thereby effectively protecting the personal safety of the operator and other related personnel, and the safety is better. The knife blocking frame 52 will fit with the upper surface of the rubber tape under the action of its own gravity, avoiding a gap between the rubber tape and the cloth letting opening 51, thereby avoiding fingers from being inserted into the gap and causing injuries. In addition, since the sharpening rod 55 and the safety cover 5 are There is a certain elasticity in the connection between the covers 5, so when the movable shearing knife 2 is repeatedly opened and closed to perform shearing actions, the blade of the movable shearing knife 2 will repeatedly contact the sharpening rod 55, thereby always keeping the blade of the movable shearing knife 2 sharp and making the shearing action more stable. The rotating motor 14 drives the threaded rod 12 to rotate. Under the restriction of the limit rod 13, the sliding sleeve 15 moves axially along the threaded rod 12 to drive the mounting groove plate 16 to move up and down. After the rotating roller 19 contacts the rubber tape, the mounting groove plate 16 continues to move downward to compress the buffer spring 18, thereby increasing the pressure of the rotating roller 19 on the tape surface, so as to better adapt to the transportation of tapes of different thicknesses, and the rotating roller 19 can pre-press the tape to improve its flatness, which is beneficial to subsequent shearing operations.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 tape shearing device, comprising a workbench (1) and a shearing structure, characterized in that: The shearing structure comprises a movable shearing knife (2) and a fixed shearing knife (3); a chip removal hole (4) is provided on the workbench (1); the fixed shearing knife (3) is fixedly connected to the inner side of the chip removal hole (4); the movable shearing knife (2) is located on the upper side of the workbench (1); the movable shearing knife (2) and the fixed shearing knife (3) are arranged alternately; the upper end of the workbench (1) is connected to a driving mechanism for driving the movable shearing knife (2) to rotate; the outer side cover of the movable shearing knife (2) is provided with a safety cover (5); and the safety cover (5) is fixedly connected to the workbench (1).

2. A rubber tape shearing device according to claim 1, characterized in that: The upper end surface of the fixed shearing knife (3) is flush with the upper end surface of the workbench (1); a chip collecting basket (10) is detachably connected to the lower end of the workbench (1), and the chip collecting basket (10) is located at the chip discharge hole (4).

3. A rubber tape shearing device according to claim 1, characterized in that: The safety cover (5) is provided with a cloth letting-in opening (51) at the end portion close to the fixed shearing knife (3), and a knife-blocking structure is provided at the cloth letting-in opening (51), and the knife-blocking structure is connected to the safety cover (5).

4. A rubber tape shearing device according to claim 3, characterized in that: The knife blocking structure comprises a knife blocking frame (52) and a limiting structure, wherein the knife blocking frame (52) is located at the cloth letting opening (51), and the limiting structure comprises a shifting block (53) fixedly connected to the knife blocking frame (52) and a through hole (54) provided on the safety cover (5), wherein the shifting block (53) is slidably connected to the inner side of the through hole (54).

5. The rubber tape shearing device according to claim 1, characterized in that: A sharpening rod (55) is fixedly connected to the inner wall of the safety cover (5) via a torsion spring, and the sharpening rod (55) is in contact with the movable shearing knife (2).

6. The rubber tape shearing device according to claim 1, characterized in that: The outer cover of the driving mechanism is provided with a power box (6), and the driving mechanism comprises a driving motor (7) and a reduction structure, the driving motor (7) is fixedly connected to the inner wall of the power box (6), and the output end of the driving motor (7) is connected to one end of the movable shearing knife (2) through the reduction structure.

7. A rubber tape shearing device according to claim 6, characterized in that: The deceleration structure comprises a first gear (8) and a second gear (9) which are meshed with each other, wherein the diameter of the second gear (9) is larger than the diameter of the first gear (8), the first gear (8) is fixedly connected to the output end of the drive motor (7), and the second gear (9) is fixedly connected to the movable shearing knife (2) via a rotating shaft, and the rotating shaft passes through the safety cover (5) and is rotationally connected to the safety cover (5).

8. The rubber tape shearing device according to claim 1, characterized in that: A connecting plate (11) is horizontally arranged just above one side of the top of the workbench (1); a threaded rod (12) is rotatably mounted between the top of the workbench (1) and one end of the bottom of the connecting plate (11); a limiting rod (13) is fixedly mounted between the top of the workbench (1) and the other end of the bottom of the connecting plate (11); a rotating motor (14) is fixedly mounted on the top of the connecting plate (11); an output shaft of the rotating motor (14) is fixedly connected to one end of the threaded rod (12); and one end of the circumference of the threaded rod (12) and the limiting rod (13) are both sleeved. A sliding sleeve (15), wherein the inner wall of one of the sliding sleeves (15) is sleeved with the threaded rod (12) through a thread, a mounting groove plate (16) is fixedly mounted on the ends of the two sliding sleeves (15) close to each other, a support plate (17) is slidably mounted between the inner walls on both sides of the two mounting groove plates (16), a buffer spring (18) is fixedly mounted between the top of the support plate (17) and the inner wall of the top of the corresponding mounting groove plate (16), and a plurality of rotating rollers (19) are fixedly mounted at equal intervals between the ends of the two supporting plates (17) close to each other.

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