Automatic material changing mechanism for circular knife die-cutting machine

Abstract

The utility model relates to the technical field of die-cutting machine equipment, in particular to an automatic material changing mechanism for a circular knife die-cutting machine, which comprises a working table, mounting plates fixedly connected to the front side and the rear side of the upper end of the working table, a die-cutting component arranged between the two mounting plates, and a limiting component arranged on the left side of the upper end of the working table. A rear plate is fixedly connected to the rear end of the workbench, a case is fixedly mounted on the rear side of the rear plate, a rotating disc is rotatably mounted at the front end of the rear plate, the rear end of the rotating disc extends into the case and is provided with a material changing assembly, a base is fixedly mounted at the lower end of the rear plate, and a feeding assembly is arranged at the front end of the base. According to the automatic material changing mechanism for the circular cutter die-cutting machine, the lifting air cylinder and the sliding strip are used, the feeding device is additionally arranged, in the feeding process, the lifting air cylinder adjusts and keeps a material roll and the discharging roller at the same horizontal height, the sliding strip is driven by the pulley to move backwards along the moving groove, the material roll is connected to the discharging roller on the left side in a sleeved mode, feeding and roll changing are accurate and rapid, and the working efficiency is improved. And the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting machine equipment, in particular to an automatic material changing mechanism for a rotary die-cutting machine. Background Art

[0002] The rotary die-cutting machine, also known as the "multi-station rotary die-cutting machine" in full, is a machine based on the rotary cutting principle. It continuously performs die-cutting processing in the form of a hob, and achieves the purpose of die-cutting by extruding materials between the cutting edge and the backing roller. It is one of the die-cutting machines with the highest production efficiency.

[0003] Most of the existing rotary die-cutting machines are integrated devices. The roller for feeding is usually installed on the rotary die-cutting machine at one end. When feeding, the material roll is sleeved and fixed. However, the material roll itself is very heavy, and it needs to be positioned and fed with the cooperation of a crane or a forklift, which is easy to damage the machine and materials. The feeding downtime is long, the operation is complex, and there are safety hazards. When the material roll is used up, the equipment operation must be stopped and re-fed. Frequent replacement of the material roll increases the labor intensity and greatly reduces the working efficiency of the die-cutting machine.

[0004] Therefore, aiming at the problem of inconvenient feeding and material changing of the existing die-cutting machine, an automatic material changing mechanism for a rotary die-cutting machine can be designed to facilitate, accurately, quickly feed and change the roll of the die-cutting machine, improve the feeding efficiency. At the same time, adding a material changing component can replace the material roll while the die-cutting machine is working, saving time, extending the working duration of the die-cutting machine, and improving the production efficiency. Summary of the Utility Model

[0005] In order to overcome the problem of inconvenient feeding and material changing of the existing die-cutting machine.

[0006] The technical solution of the utility model is as follows: an automatic material changing mechanism for a rotary die-cutting machine, including a workbench, mounting plates are fixedly connected to the front and rear sides of the upper end of the workbench, a die-cutting component is arranged between the two mounting plates, a limiting component is arranged on the left side of the upper end of the workbench, a front plate is fixedly connected to the front end of the workbench, a rear plate is fixedly connected to the rear end of the workbench, a chassis is fixedly installed on the rear side of the rear plate, a rotating disc is rotatably installed at the front end of the rear plate, two material feeding rollers are arranged at the front end of the rotating disc, a material changing component is arranged at the rear end of the rotating disc and extends into the interior of the chassis, a base is fixedly installed at the lower end of the rear plate, and a feeding component is arranged at the front end of the base.

[0007] The die-cutting assembly includes a circular knife roller and a belt. The circular knife roller is rotatably connected between two mounting plates. Circular knives are fixedly installed on the surface of the circular knife roller. The rear end of the circular knife roller extends to the outside of the mounting plate and is fixedly connected to a circular knife motor. A driving roller is arranged above the circular knife roller. The front and rear ends of the driving roller are respectively rotatably connected to the mounting plates. The circular knife roller and the driving roller are connected by belt drive. The circular knife motor drives the circular knife roller to rotate, and at the same time drives the driving roller to rotate through the belt, so that the circular knives on the circular knife roller and the driving roller squeeze to cut the raw material, thereby realizing the function of die-cutting the raw material.

[0008] Preferably, the limiting assembly includes a transmission roller. A transmission roller is fixedly connected between two mounting plates on the left side of the circular knife roller. There are two transmission rollers. A limiting cavity is opened on the surface of the workbench. A double-headed threaded rod is installed in the limiting cavity. The front and rear ends of the double-headed threaded rod are respectively rotatably connected to the inner wall of the limiting cavity. The rear end of the double-headed threaded rod extends to the outside of the limiting cavity and is fixedly installed with a limiting motor. The raw material moves through the two transmission rollers, and the limiting motor drives the double-headed threaded rod to rotate.

[0009] As a preference, the surface of the double-headed threaded rod is threadedly connected with a movable block. The movable block is slidably connected to the limiting cavity. The upper end of the movable block is fixedly connected with a limiting seat. The left and right ends of the limiting seat are respectively sleeved on the transmission rollers. The front and rear movable blocks simultaneously drive the limiting seat to move relative to the transmission rollers and move the same distance, limiting the raw material and adjusting the angle between the raw material and the transportation direction, avoiding the situation of producing defective products due to the deviation of the raw material position.

[0010] As a preference, the material-changing assembly includes a toothed ring and a gear motor. The rear end of the unwinding roller extends to the inside of the turntable and is fixedly connected with a rotating motor. The output end of the gear motor is fixedly connected with a small gear. The rear end of the gear motor is fixedly connected with the inner wall of the machine case. The toothed ring is meshed with the small gear. The gear motor drives the small gear to rotate, so that the turntable rotates together with the toothed ring, and the material roll can be replaced while the die-cutting machine is working, saving time, prolonging the working time of the die-cutting machine, and thus improving the production efficiency.

[0011] As a preference, the feeding assembly includes a moving seat. A lifting cylinder is fixedly installed on the upper end of the moving seat. There are two lifting cylinders. The output end of the lifting cylinder is fixedly installed with a supporting seat. Both sides of the upper end of the supporting seat are fixedly installed with brackets. A roller is rotatably connected between the two brackets. There are three rollers. The material roll is placed on the rollers rotating between the brackets. The three rollers can support different specifications of material rolls, with strong bearing capacity and stable rolling of the material roll. The lifting cylinder drives the supporting seat and the material roll to rise, so that the material roll and the unwinding roller are at the same horizontal height, and the feeding and roll changing are accurate and fast.

[0012] Preferably, sliding bars are fixedly installed on both the left and right sides of the lower end of the moving seat. Holes are formed at the front and rear ends of the sliding bars, and pulleys are installed in the holes. The pulleys drive the sliding bars and the moving seat to move, and it is convenient and fast to sleeved the material roll onto the unwinding roller.

[0013] Preferably, a moving groove is formed on the left side of the lower end of the base. There are two moving grooves, and the moving grooves are adapted to the sliding bars. The pulleys drive the moving seat to move along the moving grooves for loading materials, and when the work is finished, the moving seat also returns to its original position.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. For the automatic material changing mechanism of the circular knife die cutting machine, by using the lifting cylinder and the sliding bars, a feeding device is added. During feeding, the lifting cylinder adjusts and keeps the material roll and the unwinding roller at the same horizontal height. The pulleys drive the sliding bars to move backward along the moving grooves, so that the material roll is sleeved onto the unwinding roller on the left side. The feeding and roll changing are accurate, fast, and the feeding efficiency is improved.

[0016] 2. For the automatic material changing mechanism of the circular knife die cutting machine, by using the rotating disc and the unwinding roller, during material changing, the gear motor drives the small gear to rotate, so that the rotating disc rotates. The unwinding roller with the newly loaded material on the left side rotates to the right side to complete the material change. The rotating motor drives the unwinding roller to rotate, and conveys the raw material to the driving roller. While the die cutting machine is working, the material roll is replaced, saving time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The schematic diagram of the overall structure of the automatic material changing mechanism for the circular knife die cutting machine of the present utility model is shown; Figure 1 ;

[0018] Figure 2 The schematic diagram of the overall structure of the automatic material changing mechanism for the circular knife die cutting machine of the present utility model is shown; Figure 2 ;

[0019] Figure 3 The schematic diagram of the die cutting assembly and the limiting assembly of the automatic material changing mechanism for the circular knife die cutting machine of the present utility model is shown;

[0020] Figure 4 The schematic diagram of the material changing assembly of the automatic material changing mechanism for the circular knife die cutting machine of the present utility model is shown;

[0021] Figure 5 The schematic diagram of the feeding assembly of the automatic material changing mechanism for the circular knife die cutting machine of the present utility model is shown.

[0022] Description of reference numerals: 1, workbench; 2, mounting plate; 3, die-cutting assembly; 31, circular knife roller; 32, circular knife; 33, circular knife motor; 34, driving roller; 35, belt; 4, limiting assembly; 41, driving roller; 42, limiting cavity; 43, double-headed threaded rod; 44, limiting motor; 45, movable block; 46, limiting seat; 5, front plate; 6, rear plate; 7, chassis; 8, material-changing assembly; 81, rotating disk; 82, unwinding roller; 83, rotating motor; 84, toothed ring; 85, pinion; 86, gear motor; 9, base; 91, moving groove; 10, feeding assembly; 101, moving seat; 102, lifting cylinder; 103, supporting seat; 104, bracket; 105, roller; 106, slide bar. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] Please refer to Figures 1 - 5 , the present utility model provides an embodiment: an automatic material-changing mechanism for a circular knife die-cutting machine, including a workbench 1, mounting plates 2 are fixedly connected to the front and rear sides of the upper end of the workbench 1, a die-cutting assembly is arranged between the two mounting plates 2, a front plate 5 is fixedly connected to the front end of the workbench 1, a rear plate 6 is fixedly connected to the rear end of the workbench 1, a chassis 7 is fixedly installed on the rear side of the rear plate 6, and a base 9 is fixedly installed at the lower end of the rear plate 6;

[0025] The die-cutting assembly includes a circular knife roller 31 and a belt 35. The circular knife roller 31 is rotatably connected between the two mounting plates 2. A circular knife 32 is fixedly installed on the surface of the circular knife roller 31. The rear end of the circular knife roller 31 extends to the outside of the mounting plate 2 and is fixedly connected to a circular knife motor 33. A driving roller 34 is arranged above the circular knife roller 31. The front and rear ends of the driving roller 34 are respectively rotatably connected to the mounting plates 2. The circular knife roller 31 and the driving roller 34 are driven by the belt 35. When in use, the circular knife motor 33 drives the circular knife roller 31 to rotate, and simultaneously drives the driving roller 34 to rotate through the belt 35, so that the circular knife 32 on the circular knife roller 31 squeezes the raw material with the driving roller 34 to cut the raw material, thereby realizing the function of die-cutting the raw material.

[0026] Please refer to 1, Figure 2 and Figure 3, in this embodiment, a limiting component is provided on the left side of the upper end of the workbench 1. The limiting component includes a driving roller 41. Between the two mounting plates 2, a driving roller 41 is fixedly connected on the left side of the circular knife roller 31. There are two driving rollers 41. A limiting cavity 42 is formed on the surface of the workbench 1. A double-headed threaded rod 43 is installed in the limiting cavity 42. The front and rear ends of the double-headed threaded rod 43 are respectively rotatably connected to the inner wall of the limiting cavity 42. The rear end of the double-headed threaded rod 43 extends to the outside of the limiting cavity 42 and is fixedly installed with a limiting motor 44. A movable block 45 is threadedly connected to the surface of the double-headed threaded rod 43. The movable block 45 is slidably connected to the limiting cavity 42. The upper end of the movable block 45 is fixedly connected with a limiting seat 46. The left and right ends of the limiting seat 46 are respectively sleeved on the driving roller 41. When in use, the limiting motor 44 drives the double-headed threaded rod 43 to rotate, so that the front and rear two movable blocks 45 drive the limiting seat 46 to move relative to each other along the driving roller 41 and move the same distance, adjust the distance between the two limiting seats 46 according to the width of the raw material, limit the raw material, and adjust the angle between the raw material and the transportation direction, avoiding the situation of producing defective products due to the deviation of the raw material position.

[0027] Please refer to 1, Figure 2 and Figure 4 , in this embodiment, a rotating disk 81 is rotatably installed at the front end of the rear plate 6. Two feeding rollers 82 are provided at the front end of the rotating disk 81. The rear end of the rotating disk 81 extends into the interior of the chassis 7 and is provided with a material changing component. The material changing component includes a toothed ring 84 and a gear motor 86. The rear end of the feeding roller 82 extends into the rotating disk 81 and is fixedly connected with a rotating motor 83. The output end of the gear motor 86 is fixedly connected with a small gear 85. The rear end of the gear motor 86 is fixedly connected with the inner wall of the chassis 7. The toothed ring 84 is meshed with the small gear 85. When in use, the feeding roller 82 is used to sleeve the material roll. The rotating motor 83 drives the feeding roller 82 to rotate, and conveys the raw material to the driving roller 41. When the right feeding roller 82 conveys the material, the left feeding roller 82 is replaced with a material roll by the feeding component. When the raw material on the right feeding roller 82 is used up, the gear motor 86 drives the small gear 85 to rotate, so that the rotating disk 81 rotates together with the toothed ring 84. The two feeding rollers 82 rotate following the rotating disk 81. The original left feeding roller 82 rotates to the right and starts to convey the raw material. With the setting of the material changing component, the two feeding rollers 82 do not interfere with each other, and the material roll can be replaced while the die-cutting machine is working, saving time, prolonging the working duration of the die-cutting machine, and thus improving the production efficiency.

[0028] Please refer to 1, Figure 2 and Figure 5, in this embodiment, a feeding component is provided at the front end of the base 9. The feeding component includes a moving seat 101. An elevating cylinder 102 is fixedly installed at the upper end of the moving seat 101. There are two elevating cylinders 102. A support seat 103 is fixedly installed at the output end of the elevating cylinder 102. Brackets 104 are fixedly installed on both sides of the upper end of the support seat 103. A roller 105 is rotatably connected between the two brackets 104. There are three rollers 105. Slide bars 106 are fixedly installed on the left and right sides of the lower end of the moving seat 101. Holes are formed at the front and rear ends of the slide bars 106, and pulleys 107 are installed in the holes. A moving groove 91 is formed at the left side of the lower end of the base 9. There are two moving grooves 91. The moving grooves 91 are adapted to the slide bars 106. During use, the coil is placed on the rollers 105 that rotate between the brackets 104. The three rollers 105 can support coils of different specifications, with strong bearing capacity and stable rolling of the coil. The elevating cylinder 102 drives the support seat 103 and the coil to rise, so that the coil and the unwinding roller 82 are at the same horizontal height. The slide bar 106 is driven by the pulley 107 to move backward along the moving groove 91, so that the coil is sleeved on the left unwinding roller 82 to complete the fixing of the coil. At the same time, the moving seat 101 also returns to its original position. The feeding and coil changing are accurate, fast, simple to operate, and highly automated, improving the feeding efficiency.

[0029] During operation, the coil is placed on the rollers 105 that rotate between the brackets 104. The elevating cylinder 102 drives the support seat 103 and the coil to rise, so that the coil and the unwinding roller 82 are at the same horizontal height. The slide bar 106 is driven by the pulley 107 to move backward along the moving groove 91, so that the coil is sleeved on the left unwinding roller 82 to complete the fixing of the coil. The feeding and coil changing are accurate, fast, and simple to operate. When the raw material on the right unwinding roller 82 is used up, the gear motor 86 drives the small gear 85 to rotate, so that the rotating disk 81 rotates together with the toothed ring 84. The two unwinding rollers 82 follow the rotating disk 81 to rotate. The original left unwinding roller 82 rotates to the right. At the same time, the rotating motor 83 drives the unwinding roller 82 to rotate, and the raw material is conveyed to the driving roller 41. The coil is changed while the die-cutting machine is working, saving time and prolonging the working duration of the die-cutting machine, thereby improving the production efficiency. The limit motor 44 drives the double-headed threaded rod 43 to rotate, so that the front and rear movable blocks 45 drive the limit seats 46 to move relative to each other along the driving roller 41 and move the same distance, adjusting the distance between the two limit seats 46 according to the width of the raw material, limiting the raw material, and adjusting the angle between the raw material and the transportation direction, avoiding the situation of producing defective products due to the deviation of the raw material position. Finally, the round knife motor 33 drives the round knife roller 31 to rotate, and simultaneously drives the driving roller 34 to rotate through the belt 35, so that the round knife 32 on the round knife roller 31 squeezes against the driving roller 34 to cut the raw material, thereby realizing the function of die-cutting the raw material.

[0030] Through the above steps, the use of the lifting cylinder 102 and the slide bar 106 increases the loading device, facilitating the adjustment of the height and position of the material roll. The loading and roll change are accurate and fast, improving the loading efficiency. The use of the rotating disk 81 and the unwinding roller 82 facilitates the replacement of the material roll while the die-cutting machine is working, saving time and improving the production efficiency, so as to solve the problem of inconvenient loading and material change of the existing die-cutting machine.

Claims

1. An automatic material changing mechanism for a circular die cutting machine, comprising a workbench (1), characterized in that: The front and rear sides of the upper end of the workbench (1) are fixedly connected with mounting plates (2), a die-cutting assembly is arranged between the two mounting plates (2), a limit assembly is arranged on the left side of the upper end of the workbench (1), the front end of the workbench (1) is fixedly connected with a front plate (5), the rear end of the workbench (1) is fixedly connected with a rear plate (6), the rear side of the rear plate (6) is fixedly installed with a chassis (7), the front end of the rear plate (6) is rotatably installed with a rotating disk (81), the front end of the rotating disk (81) is provided with two material discharge rollers (82), the rear end of the rotating disk (81) extends to the interior of the chassis (7) and is provided with a material changing assembly, the lower end of the rear plate (6) is fixedly installed with a base (9), and the front end of the base (9) is provided with a loading assembly; The die-cutting assembly comprises a circular knife roller (31) and a belt (35). The circular knife roller (31) is rotatably connected between two mounting plates (2). A circular knife (32) is fixedly installed on the surface of the circular knife roller (31). The rear end of the circular knife roller (31) extends to the outside of the mounting plate (2) and is fixedly connected to a circular knife motor (33). A driving roller (34) is arranged at the upper end of the circular knife roller (31). The front and rear ends of the driving roller (34) are respectively rotatably connected to the mounting plate (2). The circular knife roller (31) and the driving roller (34) are connected by a belt (35) for transmission.

2. The automatic material changing mechanism for a circular die cutting machine according to claim 1, characterized in that: The limiting assembly comprises a transmission roller (41), which is fixedly connected to the left side of the circular knife roller (31) between the two mounting plates (2), and two transmission rollers (41) are provided. A limiting cavity (42) is provided on the surface of the workbench (1), and a double-headed threaded rod (43) is installed in the limiting cavity (42). The front and rear ends of the double-headed threaded rod (43) are respectively rotatably connected to the inner wall of the limiting cavity (42), and the rear end of the double-headed threaded rod (43) extends to the outside of the limiting cavity (42) and is fixedly installed with a limiting motor (44).

3. The automatic material changing mechanism for a circular die cutting machine according to claim 2, characterized in that: A movable block (45) is threadedly connected to the surface of the double-headed threaded rod (43); the movable block (45) is slidably connected to the limiting cavity (42); the upper end of the movable block (45) is fixedly connected to the limiting seat (46); and the left and right ends of the limiting seat (46) are respectively sleeved with the driving roller (41).

4. The automatic material changing mechanism for a circular die cutting machine according to claim 1, characterized in that: The material changing assembly comprises a gear ring (84) and a gear motor (86). The rear end of the material discharging roller (82) extends to the rotating disk (81) and is fixedly connected to the rotating motor (83). The output end of the gear motor (86) is fixedly connected to a pinion (85). The rear end of the gear motor (86) is fixedly connected to the inner wall of the chassis (7). The gear ring (84) is meshedly connected to the pinion (85).

5. The automatic material changing mechanism for a circular die cutting machine according to claim 1, characterized in that: The loading assembly comprises a movable seat (101), a lifting cylinder (102) is fixedly mounted on the upper end of the movable seat (101), two lifting cylinders (102) are provided, a support seat (103) is fixedly mounted on the output end of the lifting cylinder (102), brackets (104) are fixedly mounted on both sides of the upper end of the support seat (103), a roller (105) is rotatably connected between the two brackets (104), and three rollers (105) are provided.

6. The automatic material changing mechanism for a circular die cutting machine according to claim 5, characterized in that: Slide bars (106) are fixedly installed on both left and right sides of the lower end of the movable seat (101), and holes are provided at the front and rear ends of the slide bar (106), and pulleys (107) are installed in the holes.

7. The automatic material changing mechanism for a circular die cutting machine according to claim 6, characterized in that: A movable groove (91) is provided on the left side of the lower end of the base (9), and two movable grooves (91) are provided. The movable grooves (91) are adapted to the slide bar (106).

Images