Cutting device with protection mechanism
By designing a cutting device with a protective mechanism, using cylinders and tie rods to drive the transmission bars, a fixed-distance cutting is achieved, and the automatic reset of the push plate is achieved through the design of gears and racks, which solves the problems of low efficiency and insufficient safety caused by manual loading in the prior art, and an efficient and safe cutting process is achieved.
Patent Information
- Application Number
- CN202421441576.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-06-21
AI Technical Summary
During the cutting process, existing cardboard cutting devices require manual loading to determine the cutting size, which is inefficient and lacks safety for staff.
A cutting device with a protective mechanism is designed, using a cylinder and a tie rod to drive the transmission bar. The fixed-distance cutting is achieved through the cooperation of the linkage block and the spring, and the automatic reset of the push plate is achieved through the design of gears and racks.
It realizes fixed-distance cutting without manual pushing, improves cutting efficiency and safety, and simplifies workflow, making cutting operations more convenient and efficient.
Smart Images
Figure CN222945632U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cutting devices, in particular to a cutting device with a protection mechanism. Background Art
[0002] The working principle of the cardboard cutting device is usually: first place the cardboard on the feeding mechanism, and then control the feeding mechanism to transport the cardboard to the cutting area through the control system. In the cutting area, the cutting mechanism will cut the cardboard and cut it according to the predetermined size and shape. After cutting, the cardboard will be transported to the discharge port, completing the entire cutting process. The cardboard cutting device is widely used, for example: in the printing industry, it is used to cut the printed cardboard into various shapes; in the packaging industry, it is used to cut the cardboard into various packaging boxes, cartons, etc.
[0003] When cutting cardboard, some companies with smaller output will not introduce larger assembly line equipment. They need manual cutting or semi-automatic equipment. These devices require manual loading to determine the cutting size, and most of them do not have the function of fixed-distance cutting. Manual loading to determine the size not only has low cutting efficiency, but also has certain hidden dangers and cannot provide relative protection for the staff. Utility Model Content
[0004] The purpose of the utility model is to provide a cutting device with a protection mechanism to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a cutting device with a protection mechanism, comprising a cutting table and a gantry, the surface of the cutting table is provided with a cutting groove, the inner side of the gantry is fixedly connected with a cylinder, the output shaft of the cylinder is fixedly connected with a knife seat, the bottom surface of the knife seat is provided with a cutting knife, the inner side of the gantry is provided with a control unit and a linkage unit, the control unit comprises:
[0006] A fixed rail, the bottom surface of which is fixedly connected to the top surface of the cutting table, a transmission bar is penetrated and slidably connected to the inner side of the fixed rail, the pull rod rotates with the shaft rod as the axis, and the torsion spring is compressed while rotating, and the transmission bar is pulled by pulling the square hole, and the surface of the transmission bar is provided with a square hole;
[0007] A slide plate, which passes through the cutting table and is slidably connected, and a side of the slide plate close to the transmission bar is fixedly connected to the transmission bar, and a linkage block passes through and is slidably connected to the inner side of the gantry, and a square plate is fixedly connected to the surface of the linkage block close to the inner side of the gantry, and an axle rod and a limit block are fixedly connected to the surface of the square plate, and the axle rod passes through and is rotatably connected to a pull rod, and the spring will be compressed when the linkage block moves downward, and the square plate will drive the pull rod downward through the axle rod, so that the pull rod is inserted into the square hole, and a torsion spring is fixedly connected between the pull rod and the limit block, and fixed-distance cutting is achieved by repeated starting of the cylinder and the pull rod pulling the transmission bar a fixed distance, and no manual pushing of the material is required.
[0008] Preferably, a positioning rod passes through the bottom surface of the linkage block, and the linkage block is slidably connected to the positioning rod. A spring 1 is fixedly connected between the linkage block and the inner side of the gantry. When the cylinder is started, the cylinder will repeatedly push the knife seat downward, and the spring 1 will be compressed while the linkage block moves downward.
[0009] Preferably, the number of the slide plates is two groups, and a push plate is fixedly connected between the two groups of slide plates, and a second spring is fixedly connected between the slide plate and the inner side of the cutting table.
[0010] Preferably, a trapezoidal abutment block is fixedly connected to the inner wall of the cutting table, and a lifting plate is penetrated and slidably connected to the inner side of the cutting table. After the rack two moves downward a certain number of times, the spring four will be tightened first, and pressure will be applied downward to the lifting plate at the same time.
[0011] Preferably, a triangular block is fixedly connected to the top surface of the lifting plate, and the slide plate will compress spring two when being pulled. However, because the square hole of the transmission bar will contact the inclined surface of the triangular block when being pulled, the triangular block will be embedded in the square hole. A support rod is fixedly connected to the bottom surface of the lifting plate, and spring three is fixedly connected between the lifting plate and the inner wall of the cutting table.
[0012] Preferably, the linkage part includes a movable cavity, which is opened on the inner side of the gantry. A fixed rod is fixedly connected to the inner side of the movable cavity. The fixed rod penetrates and is rotatably connected to a gear. Because the teeth of the gear are not full and the tooth spacing of rack 2 is large, the gear no longer meshes with rack 2 after rotating a certain distance, so that spring 4 pulls rack 2 back to its original position, so that the staff can place new cardboard on the cutting table. Rack 1 and rack 2 are slidably connected to the inner side of the movable cavity.
[0013] Preferably, a spring four is fixedly connected between the top surface of the rack two and the inner side of the movable cavity, a lift rod is hingedly connected to the inner side of the movable cavity, and an end of the lift rod close to the rack one passes through the rack one and is hingedly connected to the rack one.
[0014] Compared with the prior art, the utility model provides a cutting device with a protective mechanism, which has the following beneficial effects:
[0015] 1. The cutting device with a protective mechanism, when the bottom end of the pull rod contacts the inclined surface of the trapezoidal contact block, the pull rod is forced to rotate with the shaft rod as the axis, and the torsion spring is compressed while rotating, and the transmission bar is pulled by pulling the square hole, so that the transmission bar pulls the slide plate and the push plate to load the cardboard, so that the cardboard is pushed to the position of the cutting groove for cutting, and the slide plate compresses the spring 2 when being pulled, but because the square hole of the transmission bar contacts the inclined surface of the triangular block when being pulled, the triangular block is embedded in the square hole, and then the triangular block performs unidirectional limit on the transmission bar, so that the spring 2 cannot pull the transmission bar back, and the fixed distance cutting is realized by repeatedly starting the cylinder and the pull rod pulling the transmission bar to a fixed distance, and no manual pushing of materials is required, which is safer, thereby protecting the staff.
[0016] 2. The cutting device with a protective mechanism has incomplete teeth of the gear and a large spacing between the teeth of rack 2, so that after the gear rotates a certain distance, it no longer meshes with rack 2, and the spring 4 pulls rack 2 back to its original position, so that the staff can place new cardboard on the cutting table and work again without manual reset. After the cardboard is cut at a fixed distance, the push plate can be automatically reset, making the cutting operation convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0018] Figure 2 It is a partial enlarged structural schematic diagram of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the gantry of the utility model;
[0020] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the cutting table of the utility model;
[0021] Figure 5 This is a schematic diagram of the enlarged structure of the square plate of the utility model;
[0022] Figure 6 It is a schematic diagram of the enlarged structure of the lifting plate of the utility model.
[0023] In the figure: 1. cutting table; 2. control unit; 21. fixed rail; 22. transmission bar; 23. square hole; 24. slide plate; 25. push plate; 26. linkage block; 27. positioning rod; 28. spring one; 29. square plate; 210. shaft rod; 211. pull rod; 212. limit block; 213. torsion spring; 214. trapezoidal resistance block; 215. lifting plate; 216. triangular block; 217. support rod; 218. spring three; 219. spring two; 3. linkage unit; 31. movable chamber; 32. fixed rod; 33. gear; 34. rack one; 35. rack two; 36. spring four; 37. tilting rod; 4. cylinder; 5. knife seat; 6. cutting knife; 7. cutting groove; 8. gantry. DETAILED DESCRIPTION
[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a cutting device with a protection mechanism, comprising a cutting table 1 and a gantry 8, a cutting groove 7 is opened on the surface of the cutting table 1, a cylinder 4 is fixedly connected to the inner side of the gantry 8, the output shaft of the cylinder 4 is fixedly connected to the knife seat 5, a cutting knife 6 is arranged on the bottom surface of the knife seat 5, a control part 2 and a linkage part 3 are arranged on the inner side of the gantry 8, and the control part 2 comprises: a fixed rail 21, a transmission bar 22, a square hole 23, a slide plate 24, a push plate 25, a linkage block 26, a positioning rod 27, a spring 1 28, a square plate 29, a shaft rod 210, a pull rod 211, a limit block 212, a torsion spring 213, a trapezoidal contact block 214, a lifting plate 215, a triangular block 216, a support rod 217, a spring three 218, and a spring two 219.
[0025] The bottom surface of the fixed rail 21 is fixedly connected to the top surface of the cutting table 1, and a transmission bar 22 is penetrated and slidably connected to the inner side of the fixed rail 21. The pull rod 211 rotates with the shaft 210 as the axis, and the torsion spring 213 is compressed while rotating, and the transmission bar 22 is pulled by pulling the square hole 23, so that the transmission bar 22 pulls the slide plate 24 and the push plate 25 to load the cardboard, so that the cardboard is pushed to the position of the cutting groove 7 for cutting, and the surface of the transmission bar 22 is provided with a square hole 23; the slide plate 24 penetrates the cutting table 1 and is slidably connected, and the side of the slide plate 24 close to the transmission bar 22 is fixedly connected to the transmission bar 22, and the inner side of the gantry 8 is penetrated and slidably connected with a linkage block 26, and the linkage block 26 is close to the surface of the inner side of the gantry 8 A square plate 29 is fixedly connected, and an axle rod 210 and a limit block 212 are fixedly connected to the surface of the square plate 29. The axle rod 210 passes through and is rotatably connected to a pull rod 211. When the linkage block 26 moves downward, the spring 28 will be compressed, and the square plate 29 will drive the pull rod 211 downward through the axle rod 210, so that the pull rod 211 is inserted into the square hole 23, and the bottom end of the pull rod 211 will contact the inclined surface of the trapezoidal contact block 214, forcing the pull rod 211 to rotate around the axle rod 210. A torsion spring 213 is fixedly connected between the pull rod 211 and the limit block 212, and fixed-distance cutting is achieved by repeatedly starting the cylinder 4 and the pull rod 211 pulling the transmission bar 22 to a fixed distance, and no manual pushing of the material is required. The bottom surface of the linkage block 26 is penetrated by a positioning rod 27, and the linkage block 26 is slidably connected to the positioning rod 27. A spring 1 28 is fixedly connected between the linkage block 26 and the inner side of the gantry 8. When in use, the cardboard to be cut is first placed on the inner side of the push plate 25, and the cylinder 4 is started. The cylinder 4 will repeatedly push the knife seat 5 downward. When the knife seat 5 moves downward, it will contact the square plate 29 and make the square plate 29 drive the linkage block 26 to move downward along the positioning rod 27. When the linkage block 26 moves downward, the spring 1 28 will be compressed. There are two groups of slide plates 24, and a push plate 25 is fixedly connected between the two groups of slide plates 24, and a spring 219 is fixedly connected between the slide plate 24 and the inner side of the cutting table 1. A trapezoidal abutment block 214 is fixedly connected to the inner wall of the cutting table 1, and a lifting plate 215 is penetrated and slidably connected to the inner side of the cutting table 1. When the linkage block 26 moves downward, pressure is applied to the tilting rod 37, so that the tilting rod 37 tilts the rack 1 34, and the rack 1 34 gradually drives the gear 33 to rotate. The rotation of the second gear 33 drives the rack 2 35 to move downward. After the rack 2 35 moves downward a certain number of times, the spring 4 36 will be tightened first, and at the same time, pressure will be applied downward to the lifting plate 215.The top surface of the lifting plate 215 is fixedly connected with a triangular block 216. When the slide plate 24 is pulled, the spring 219 will be compressed. However, because the square hole 23 of the transmission bar 22 will contact the inclined surface of the triangular block 216 when the transmission bar 22 is pulled, the triangular block 216 is embedded in the square hole 23, and then the triangular block 216 limits the transmission bar 22 in one direction, so that the spring 219 cannot pull the transmission bar 22 back. The bottom surface of the lifting plate 215 is fixedly connected with a support rod 217, and a spring 3 218 is fixedly connected between the lifting plate 215 and the inner wall of the cutting table 1. The linkage part 3 includes an active cavity 31, which is opened on the inner side of the gantry 8. A fixed rod 32 is fixedly connected to the inner side of the active cavity 31. The fixed rod 32 penetrates and is rotatably connected to a gear 33. Since the teeth of the gear 33 are not full teeth and the teeth spacing of the rack 2 35 is large, the gear 33 is no longer meshed with the rack 2 35 after rotating a certain distance, and the spring 4 36 pulls the rack 2 35 back to its original position, so that the staff can place a new cardboard on the cutting table 1. The inner side of the active cavity 31 is slidably connected to the rack 1 34 and the rack 2 35. A spring 4 36 is fixedly connected between the top surface of the rack 2 35 and the inner side of the active cavity 31. A tilting rod 37 is hinged to the inner side of the active cavity 31. The end of the tilting rod 37 close to the rack 1 34 penetrates the rack 1 34 and is hinged to the rack 1 34.
[0026] Based on the above embodiment, when in use, the cardboard to be cut is first placed on the inner side of the push plate 25, and the cylinder 4 is started. The cylinder 4 will repeatedly push the knife seat 5 downward. When the knife seat 5 moves downward, it will resist the square plate 29 and make the square plate 29 drive the linkage block 26 to move downward along the positioning rod 27. When the linkage block 26 moves downward, the spring 28 will be compressed, and the square plate 29 will drive the pull rod 211 downward through the shaft 210, so that the pull rod 211 is inserted into the square hole 23, and the bottom end of the pull rod 211 will resist the inclined surface of the trapezoidal resistance block 214, forcing the pull rod 211 to rotate with the shaft 210 as the axis, and the torsion spring 213 will be compressed during the rotation, and the torsion spring 213 will be compressed. The transmission bar 22 is pulled by pulling the square hole 23, and then the transmission bar 22 pulls the slide plate 24 and the push plate 25 to load the cardboard, so that the cardboard is pushed to the position of the cutting groove 7 for cutting, and the slide plate 24 will compress the spring 219 when being pulled, but because the square hole 23 of the transmission bar 22 will resist the inclined surface of the triangular block 216 when being pulled, the triangular block 216 is embedded in the square hole 23, and then the triangular block 216 performs unidirectional limit on the transmission bar 22, so that the spring 219 cannot pull the transmission bar 22 back, and the fixed distance cutting is realized by repeatedly starting the cylinder 4 and the pull rod 211 pulling the transmission bar 22 to a fixed distance, and no manual pushing of materials is required, which is safer.
[0027] When the linkage block 26 moves downward, pressure is applied to the tilting rod 37, so that the tilting rod 37 tilts the rack 1 34, and the rack 1 34 gradually drives the gear 33 to rotate. The rotation of the second gear 33 drives the rack 2 35 to move downward. After the rack 2 35 moves downward a certain number of times, the spring 4 36 will be tightened first, and pressure will be applied to the lifting plate 215 downward, so that the lifting plate 215 drives the triangular block 216 to move downward together, so that the triangular block 216 no longer limits the transmission bar 22, so that the spring 219 pushes the push plate 25 back. However, because the teeth of the gear 33 are not full, and the teeth spacing of the rack 2 35 is large, the gear 33 will no longer mesh with the rack 2 35 after rotating a certain distance, so that the spring 4 36 pulls the rack 2 35 back to its original position, so that the staff can place a new cardboard on the cutting table 1 and work again without manual reset. After the cardboard is cut at a fixed distance, the push plate 25 can be automatically reset, making the cutting operation convenient and efficient.
[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A cutting device with a protective mechanism, comprising a cutting table (1) and a gantry (8), characterized in that: The surface of the cutting table (1) is provided with a cutting groove (7), the inner side of the gantry (8) is fixedly connected to a cylinder (4), the output shaft of the cylinder (4) is fixedly connected to a knife seat (5), the bottom surface of the knife seat (5) is provided with a cutting knife (6), and the inner side of the gantry (8) is provided with a control unit (2) and a linkage unit (3), and the control unit (2) comprises: A fixed rail (21), the bottom surface of the fixed rail (21) being fixedly connected to the top surface of the cutting table (1), a transmission bar (22) penetrating the inner side of the fixed rail (21) and being slidably connected, and a square hole (23) being provided on the surface of the transmission bar (22); A slide plate (24), the slide plate (24) passes through the cutting table (1) and is slidably connected, the side of the slide plate (24) close to the transmission bar (22) is fixedly connected to the transmission bar (22), the inner side of the gantry (8) passes through and is slidably connected with a linkage block (26), the surface of the linkage block (26) close to the inner side of the gantry (8) is fixedly connected with a square plate (29), the surface of the square plate (29) is fixedly connected with an axis rod (210) and a limit block (212), the axis rod (210) passes through and is rotatably connected with a pull rod (211), and a torsion spring (213) is fixedly connected between the pull rod (211) and the limit block (212).
2. A cutting device with a protective mechanism according to claim 1, characterized in that: A positioning rod (27) penetrates the bottom surface of the linkage block (26), and the linkage block (26) is slidably connected to the positioning rod (27). A spring (28) is fixedly connected between the linkage block (26) and the inner side of the gantry (8).
3. A cutting device with a protection mechanism according to claim 1, characterized in that: The number of the slide plates (24) is two groups, and a push plate (25) is fixedly connected between the two groups of slide plates (24), and a second spring (219) is fixedly connected between the slide plates (24) and the inner side of the cutting table (1).
4. A cutting device with a protection mechanism according to claim 1, characterized in that: A trapezoidal abutment block (214) is fixedly connected to the inner wall of the cutting table (1), and a lifting plate (215) penetrates and is slidably connected to the inner side of the cutting table (1).
5. A cutting device with a protection mechanism according to claim 4, characterized in that: The top surface of the lifting plate (215) is fixedly connected to a triangular block (216), the bottom surface of the lifting plate (215) is fixedly connected to a support rod (217), and a spring three (218) is fixedly connected between the lifting plate (215) and the inner wall of the cutting table (1).
6. A cutting device with a protection mechanism according to claim 1, characterized in that: The linkage part (3) comprises an active cavity (31), the active cavity (31) is opened on the inner side of the gantry (8), a fixed rod (32) is fixedly connected to the inner side of the active cavity (31), a gear (33) is passed through and rotatably connected to the fixed rod (32), and a rack 1 (34) and a rack 2 (35) are slidably connected to the inner side of the active cavity (31).
7. A cutting device with a protection mechanism according to claim 6, characterized in that: A spring four (36) is fixedly connected between the top surface of the second rack (35) and the inner side of the movable cavity (31); a tilting rod (37) is hingedly connected to the inner side of the movable cavity (31); an end of the tilting rod (37) close to the first rack (34) passes through the first rack (34) and is hingedly connected to the first rack (34).