Cutter adjusting mechanism of circular cutter die-cutting machine

Abstract

The cutter adjusting mechanism of the circular cutter die-cutting machine comprises a circular cutter die, a first fixing frame and a second fixing frame, a first shaft rod and a second shaft rod are arranged at the two ends of the circular cutter die respectively, a driving mechanism and a sliding rail are fixedly installed on the first fixing frame, and an adjusting frame is movably installed on the sliding rail. The driving mechanism is in driving connection with the adjusting frame through a lead screw, the adjusting frame is fixedly connected with the first shaft rod through a first bearing, the second fixing frame is movably provided with a main shaft through a second bearing, the main shaft is provided with a sliding hole, the sliding hole is movably connected with the second shaft rod, and the main shaft is fixedly provided with a driving gear. When the circular cutting die is adjusted, the position of the adjusting frame is accurately driven by controlling the driving mechanism, and meanwhile, the circular cutting die synchronously moves along with the adjusting frame, so that the position of the circular cutting die is rapidly and accurately adjusted.

Description

Technical Field

[0001] This utility model belongs to the technical field of cutting equipment, specifically relating to a blade adjustment mechanism for a circular die-cutting machine. Background Technology

[0002] Rotary die-cutting machines use a continuously rotating rotary cutter for die-cutting, making them one of the most efficient die-cutting machines. During operation, the cutter's horizontal position can be adjusted by using an adjustment mechanism. However, existing cutter adjustment mechanisms rely on manual adjustment, resulting in insufficient precision.

[0003] Chinese utility model patent CN221416832U discloses a tool adjustment mechanism for a rotary die-cutting machine, including a die holder, a first U-shaped plate, a die, and a second U-shaped plate. The die is installed inside the die holder, and rollers are installed at both ends of the die. The first U-shaped plate is installed at one end of the die holder, and the second U-shaped plate is installed at the end of the die holder away from the first U-shaped plate. A screw hole is provided at the end of the second U-shaped plate away from the first U-shaped plate, and an adjusting screw is installed in the internal thread of the screw hole. This utility model includes a second mounting rod, a second bearing, a second U-shaped plate, and a second sliding assembly. In use, the second sliding plate can slide on the second sliding assembly, thereby moving the die via the second mounting rod, allowing adjustment of the die's position in the horizontal direction. However, manual adjustment of the tool position lacks precision. Utility Model Content

[0004] The purpose of this invention is to provide a tool adjustment mechanism for a circular die-cutting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tool adjustment mechanism for a circular die-cutting machine, comprising a circular die, a first fixed frame, and a second fixed frame. The circular die has a first shaft and a second shaft at each end. The first fixed frame is fixedly mounted with a drive mechanism and a slide rail. An adjustment frame is movably mounted on the slide rail. The drive mechanism is driven and connected to the adjustment frame via a lead screw. The adjustment frame is fixedly connected to the first shaft via a first bearing. The second fixed frame is movably mounted with a main shaft via a second bearing. The main shaft has a sliding hole, which is movably connected to the second shaft. A groove is provided within the sliding hole. The second shaft has a protruding rib, which is engaged and fixedly connected to the protruding rib. A drive gear is fixedly mounted on the main shaft.

[0006] Preferably, the drive mechanism includes a stepper motor and a locking mechanism.

[0007] Preferably, the first fixing frame is fixedly installed with a limit grating, and the adjusting frame is fixedly installed with a baffle.

[0008] Preferably, the first shaft has a ring top and a screw hole, and a fastener is fixedly connected to the screw hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The first fixed frame of this utility model is fixedly installed with a drive mechanism and a slide rail. An adjustment frame is movably installed on the slide rail. The drive mechanism is driven to the adjustment frame through a lead screw. The adjustment frame is fixedly connected to the first shaft through a first bearing. When adjusting the circular die, the position of the adjustment frame is precisely driven by controlling the drive mechanism. At the same time, the circular die moves synchronously with the adjustment frame, so as to quickly and accurately adjust the position of the circular die.

[0011] The second fixed frame of this utility model has a main shaft movably mounted on it via a second bearing. The main shaft has a sliding hole that is movably connected to a second shaft. The sliding hole has a sliding groove, and the second shaft has a rib. The sliding groove and the rib are engaged and fixed, so that the main shaft and the second shaft can rotate synchronously. A drive gear is fixedly mounted on the main shaft. The design of the sliding hole and the second shaft fixes the position of the main shaft on the second fixed frame and fixes the position of the drive gear on the main shaft, which facilitates the connection of the drive gear to the power input device. Attached Figure Description

[0012] Figure 1 This is the first perspective structural view of this utility model.

[0013] Figure 2 This is the second perspective structural view of this utility model.

[0014] Figure 3 This is a structural view of the first fixing frame of this utility model.

[0015] Figure 4 This is a structural view of the first shaft of this utility model.

[0016] Figure 5 This is a structural view of the second fixing frame of this utility model.

[0017] The diagram shows: 1. Circular die; 2. First fixed frame; 3. Second fixed frame; 4. First shaft; 5. Second shaft; 6. Drive mechanism; 7. Slide rail; 8. Adjustment frame; 9. Lead screw; 10. First bearing; 11. Second bearing; 12. Main shaft; 13. Sliding hole; 14. Sliding groove; 15. Protruding rib; 16. Drive gear; 17. Stepper motor; 18. Locking mechanism; 19. Limiting grating; 20. Baffle plate; 21. Ring top; 22. Screw hole; 23. Fixing component. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1:

[0020] like Figures 1-5 As shown, the present invention provides a blade adjustment mechanism for a circular die-cutting machine, comprising a circular die 1, a first fixed frame 2, and a second fixed frame 3. The circular die 1 has a first shaft 4 and a second shaft 5 at both ends. The first fixed frame 2 is fixedly mounted with a drive mechanism 6 and a slide rail 7. An adjustment frame 8 is movably mounted on the slide rail 7. The drive mechanism 6 is driven by the adjustment frame 8 via a lead screw 9. The adjustment frame 8 is fixedly connected to the first shaft 4 via a first bearing 10. The second fixed frame 3 is movably mounted with a main shaft 12 via a second bearing 11. The main shaft 12 has a sliding hole 13, which is movably connected to the second shaft 5. A sliding groove 14 is provided inside the sliding hole 13. The second shaft 5 has a protruding rib 15, which is engaged and fixedly connected to the sliding groove 14 and the protruding rib 15. A drive gear 16 is fixedly mounted on the main shaft 12. The drive mechanism 6 includes a stepper motor 17 and a locking mechanism 18. A limit grating 19 is fixedly mounted on the first fixed frame 2, and a baffle 20 is fixedly mounted on the adjustment frame 8. The first shaft 4 is provided with a ring top 21 and a screw hole 22, and a fastener 23 is fixedly connected to the screw hole 22.

[0021] Through the above technical solution, the first fixed frame 2 of this utility model is fixedly installed with a drive mechanism 6 and a slide rail 7. The slide rail 7 is movably installed with an adjustment frame 8. The drive mechanism 6 is driven to the adjustment frame 8 through a lead screw 9. The adjustment frame 8 is fixedly connected to the first shaft 4 through a first bearing 10. When adjusting the circular die 1, the position of the adjustment frame 8 is precisely driven by controlling the drive mechanism 6. At the same time, the circular die 1 moves synchronously with the adjustment frame 8, so as to quickly and accurately adjust the position of the circular die 1.

[0022] The second fixed frame 3 of this utility model has a main shaft 12 movably mounted on it via a second bearing 11. The main shaft 12 has a sliding hole 13, which is movably connected to the second shaft 5. A sliding groove 14 is provided in the sliding hole 13, and a rib 15 is provided in the second shaft 5. The sliding groove 14 and the rib 15 are engaged and fixed, so that the main shaft 12 and the second shaft 5 can rotate synchronously. A drive gear 16 is fixedly mounted on the main shaft 12. The design of the sliding hole 13 and the second shaft 5 fixes the position of the main shaft 12 on the second fixed frame 3, and fixes the position of the drive gear 16 on the main shaft 12, which facilitates the connection of the drive gear 16 to the power input device.

[0023] Example 2:

[0024] like Figures 1-5 As shown, this utility model includes a circular die 1, a first fixed frame 2, and a second fixed frame 3. The circular die 1 has a first shaft 4 and a second shaft 5 at both ends. The first fixed frame 2 is fixedly mounted with a drive mechanism 6 and a slide rail 7. An adjusting frame 8 is movably mounted on the slide rail 7. The drive mechanism 6 is driven by the adjusting frame 8 via a lead screw 9. The adjusting frame 8 is fixedly connected to the first shaft 4 via a first bearing 10. The second fixed frame 3 is movably mounted with a main shaft 12 via a second bearing 11. The main shaft 12 has a sliding hole 13, which is movably connected to the second shaft 5. A sliding groove 14 is provided inside the sliding hole 13, and a protruding rib 15 is provided on the second shaft 5; the sliding groove 14 and the protruding rib 15 are engaged and fixed. A drive gear 16 is fixedly mounted on the main shaft 12. In this adjusting mechanism, the drive mechanism 6 is mounted on the first fixed frame 2 to provide power. The slide rail 7 is also fixed on the first fixed frame 2 to provide movement guidance for the adjusting frame 8. The adjusting frame 8 is mounted on the slide rail 7 and can move along the slide rail 7. The drive mechanism 6 is connected to the adjusting frame 8 via a lead screw 9, controlling the position of the adjusting frame 8. The adjusting frame 8 is fixedly connected to the first shaft 4 of the circular die 1 via a first bearing 10, allowing the circular die 1 to move synchronously with the adjusting frame 8. The second fixed frame 3 movably mounts the main shaft 12 via a second bearing 11. The main shaft 12 has a sliding hole 13, which is movably connected to the second shaft 5 of the circular die 1. This design fixes the position of the main shaft 12, while allowing the circular die 1 to be adjusted horizontally. A sliding groove 14 is provided in the sliding hole 13, and a rib 15 is provided on the second shaft 5; the sliding groove 14 and the rib 15 are engaged and fixed. This structure allows the main shaft 12 to drive the second shaft 5 to rotate while allowing the second shaft 5 to move horizontally. A drive gear 16 is fixedly mounted on the main shaft 12 for connecting to the power input device. When it is necessary to adjust the position of the circular die 1, the drive mechanism 6 drives the adjusting frame 8 to move via the lead screw 9. The adjusting frame 8 drives the first shaft 4 to move, thereby adjusting the horizontal position of the circular die 1. Due to the sliding connection between the second shaft 5 and the main shaft 12, the circular die 1 can be freely adjusted in position without affecting the positions of the main shaft 12 and the drive gear 16. After adjustment, the circular die 1 remains in the new position, while the positions of the main shaft 12 and the drive gear 16 remain unchanged, facilitating cooperation with other mechanisms. This invention employs automated control, improving the accuracy of the circular die 1's position adjustment. The cooperation between the slide rail 7 and the lead screw 9 ensures a smooth and controllable adjustment process. The sliding connection design between the main shaft 12 and the second shaft 5 resolves the contradiction between the circular die 1's position adjustment and power transmission. The entire mechanism has a compact structure, with all components working in coordination, ensuring adjustment accuracy without affecting the normal operation of the circular die 1 cutting machine.

[0025] Example 3:

[0026] like Figures 1-5As shown, this utility model optimizes the design of the drive mechanism 6, which includes a stepper motor 17 and a locking mechanism 18. The stepper motor 17 is used to precisely control the position of the adjusting frame 8. The locking mechanism 18 is activated when the stepper motor 17 stops, locking the motor and preventing the adjusting frame 8 from moving accidentally. The stepper motor 17 is mounted on the first fixed frame 2 and connected to the lead screw 9. The stepper motor 17 can precisely control the rotation angle, thereby achieving precise control of the position of the adjusting frame 8. The control signal for the stepper motor 17 is provided by the control system, enabling automated adjustment. The locking mechanism 18 includes a brake and a control circuit. The brake is mounted on the output shaft of the stepper motor 17. When the stepper motor 17 stops, the control circuit sends a signal to the brake, which activates and locks the output shaft of the stepper motor 17. This prevents the adjusting frame 8 from moving accidentally under external force, ensuring the stability of the adjusted position. When it is necessary to adjust the position of the circular die 1, the control system first releases the locking mechanism 18 and then controls the stepper motor 17 to rotate. Stepper motor 17 drives adjustment frame 8 to move via lead screw 9, thereby adjusting the position of circular die 1. After adjustment, stepper motor 17 stops running, and locking mechanism 18 automatically activates to lock the output shaft of stepper motor 17. This design combines the precise control capability of stepper motor 17 with the position holding capability of locking mechanism 18, ensuring both the accuracy of the adjustment process and the stability of the adjusted position. Stepper motor 17 can achieve minute incremental adjustments, meeting the needs of high-precision machining. Locking mechanism 18 overcomes the problem of creep that traditional adjustment devices are prone to, maintaining the adjusted position even in vibration environments.

[0027] Example 4:

[0028] like Figures 1-5As shown, a limiting grating 19 is installed on the first fixed frame 2 of this utility model, and a baffle 20 is installed on the adjusting frame 8. The limiting grating 19 adopts photoelectric sensing technology and consists of a transmitter and a receiver. The transmitter emits a light beam, and the receiver detects whether the light beam is blocked. The limiting grating 19 is installed on the first fixed frame 2 and arranged along the direction of movement of the adjusting frame 8. The baffle 20 is fixed on the adjusting frame 8 and moves with the adjusting frame 8. When the adjusting frame 8 moves to a preset position, the baffle 20 blocks the light beam emitted by the grating. The receiver detects the interruption of the light beam and immediately sends a signal to the control system. After receiving the signal, the control system immediately controls the drive mechanism 6 to stop running to prevent collision. The combined use of the limiting grating 19 and the baffle 20 can not only accurately control the movement range of the adjusting frame 8, but also improve the safety of the entire adjusting mechanism. A limiting grating 19 is set at each end of the movement range of the adjusting frame 8. When the adjusting frame 8 approaches the movement limit, the baffle 20 will trigger the corresponding limiting grating 19, and the control system will then slow down the movement speed of the adjusting frame 8 until it stops completely. This design avoids the possibility of the adjustment bracket 8 accidentally exceeding the safe range.

[0029] Example 5:

[0030] like Figures 1-5As shown, the first shaft 4 of this utility model is provided with a ring top 21 and a screw hole 22, and a fixing member 23 is fixedly connected in the screw hole 22. The first shaft 4 is movably connected to the adjusting frame 8 through the first bearing 10. The ring top 21 and the fixing member 23 are located on both sides of the first bearing 10, and together they fix the first shaft 4 on the adjusting frame 8. The ring top 21 is a protruding structure on the first shaft 4, shaped like an annular boss. Its diameter is slightly larger than the shaft body, forming a blocking surface. The main function of the ring top 21 is to prevent the first shaft 4 from displacing axially. When the first shaft 4 is inserted into the first bearing 10, the ring top 21 abuts against one side of the bearing, restricting the shaft from moving in one direction. The screw hole 22 is located at the other end of the first shaft 4 and is an internally threaded hole. The fixing member 23 is a bolt or screw that matches the screw hole 22. After the fixing member 23 is screwed into the screw hole 22, its head abuts against the other side of the first bearing 10, thereby restricting the shaft from moving in the other direction. By adjusting the screw-in depth of the fixing member 23, the position of the first shaft 4 within the bearing can be precisely controlled. The ring top 21 and the fixing member 23 work together to firmly fix the first shaft 4 onto the adjusting frame 8, preventing axial movement of the shaft during use. Secondly, since the fixing points are located on both sides of the bearing, they do not interfere with the normal operation of the bearing, thus ensuring the rotational freedom of the first shaft 4. Finally, this design allows the adjusting frame 8 to move the entire shaft assembly freely in the X-axis direction. Another advantage of this design is its adjustability. By adjusting the position of the fixing member 23, the axial position of the first shaft 4 can be fine-tuned, thereby precisely controlling the position of the circular die 1. This is crucial for cutting operations requiring high-precision tool setting.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A tool adjustment mechanism for a circular die-cutting machine, comprising a circular die, a first fixed frame, and a second fixed frame, wherein a first shaft and a second shaft are respectively provided at both ends of the circular die, characterized in that, The first fixed frame is fixedly equipped with a drive mechanism and a slide rail. An adjusting frame is movably mounted on the slide rail. The drive mechanism is driven and connected to the adjusting frame via a lead screw. The adjusting frame is fixedly connected to the first shaft via a first bearing. The second fixed frame is movably equipped with a main shaft via a second bearing. The main shaft has a sliding hole, which is movably connected to the second shaft. A sliding groove is provided in the sliding hole. The second shaft has a protruding rib, which is engaged and fixed with the sliding groove. A drive gear is fixedly mounted on the main shaft.

2. The tool adjustment mechanism of a circular die-cutting machine according to claim 1, characterized in that, The drive mechanism includes a stepper motor and a locking mechanism.

3. The tool adjustment mechanism of a circular die-cutting machine according to claim 1, characterized in that, The first fixed frame is fixedly installed with a limit grating, and the adjustment frame is fixedly installed with a baffle.

4. The tool adjustment mechanism of a circular die-cutting machine according to claim 1, characterized in that, The first shaft has a ring top and a screw hole, and a fastener is fixedly connected to the screw hole.

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