Quick locking device for die-cutting knife plate

Abstract

The utility model discloses a quick locking device for a die-cutting knife plate, which comprises a die-cutting frame and a locking mechanism, the locking mechanism comprises a locking plate, an adjusting plate and a transmission part, and the transmission part comprises a mounting rack, a mounting shaft, a positioning wheel, an internal tooth ratchet wheel and a pawl. A locking mechanism is installed in the locking strip hole for cooperative use, during locking, the inner tooth ratchet wheel is directly rotated to drive the adjusting plate to downwards extrude the locking plate, the locking plate slides towards the inner side of the die-cutting frame to extrude and lock the die-cutting knife plate, and the one-way meshing characteristic of the pawl and the ratchet ensures that the die-cutting knife plate cannot be loosened in the working state; the operation time is shortened by more than 70% compared with the traditional mode, the replacement time is effectively shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting machine technology, specifically to a quick locking device for die-cutting blades. Background Technology

[0002] Die-cutting is a cutting process used in the post-processing of printed materials. It involves making a die-cutting plate according to a pre-designed pattern and cutting the printed material so that the shape of the printed material is no longer limited to straight edges and right angles.

[0003] With the development of the printing and packaging industry, the types of printed products are constantly changing, and the final delivery time of printed products is getting shorter and shorter. Printing manufacturers often need to complete the production and processing of multiple printed products on a single die-cutting machine. However, different types of printed products require the replacement of their corresponding die-cutting blades to complete the processing technology.

[0004] Because different printed materials require corresponding die-cutting plates for processing, operators need to frequently change the corresponding die-cutting plates in a multi-variety, small-batch printing production mode. However, traditional die-cutting plates are usually locked with bolts during operation. When it is necessary to change the die-cutting plate, the bolts on the die-cutting frame are loosened one by one; after the die-cutting plate is replaced, the bolts are tightened one by one so that one end of the bolt rests against the die-cutting plate. However, this locking method results in excessively long die-cutting plate change times, thereby reducing printing production efficiency and greatly reducing the flexibility of workshop production scheduling and on-time delivery. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a quick-locking device for die-cutting plates that can effectively shorten changeover time and improve production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick locking device for a die-cutting blade, comprising a die-cutting frame and a locking mechanism. The die-cutting frame is a rectangular frame, and a locking strip hole penetrating both the inner and outer sides is provided on any right-angled frame at any right angle. A "T"-shaped connecting block is provided on the side wall near the right inner corner of the die-cutting frame inside the locking strip hole, and sliding grooves are provided on the side walls on both sides of the connecting block.

[0007] The locking mechanism includes a locking plate, an adjusting plate, and a transmission component. The locking plate has a right-angled triangular structure, and a "T"-shaped connecting groove adapted to the connecting block is opened on the bottom surface of its hook edge. The locking plate is slidably connected to the connecting block in the locking strip hole through the connecting groove, and the tangential edge of the locking plate faces the inside of the die-cutting frame. The adjusting plate has the same structure and size as the locking plate. The inclined edge of the adjusting plate is opposite to the inclined edge of the locking plate, and a sliding rod is provided at the angle between the hook edge and the tangential edge of the adjusting plate. The adjusting plate is slidably connected to the sliding groove in the locking strip hole through the sliding rod. A rack is also installed on the tangential edge of the adjusting plate, and the tooth surface of the rack faces the outside of the die-cutting frame.

[0008] The transmission components include a mounting bracket, a mounting shaft, a positioning wheel, an internal toothed ratchet, and a pawl. The mounting bracket is a square frame structure with an opening on one side. The open end of the mounting bracket is connected to the frame of the die-cutting frame on the same side as the locking groove and is sleeved on the outside of the locking plate and the adjusting plate. One end of the mounting shaft is fixedly connected to the mounting bracket, and the positioning wheel is sleeved on the outside of the mounting shaft and locked and fixed thereto.

[0009] The internal toothed ratchet is movably sleeved outside the positioning wheel. The wall thickness of the internal toothed ratchet is greater than that of the positioning wheel. A rocker arm is installed on its end face. A gear structure that matches the rack on the adjustment plate is also provided on the outer circumference of the internal toothed ratchet, and the two are meshed together. The fixed end of the pawl is connected to the end face of the positioning wheel through a return spring. The anti-reverse end cooperates with the ratchet teeth of the internal toothed ratchet. The return spring is used to give the pawl elastic potential energy to engage with the ratchet teeth. An unlocking lever is also installed on the anti-reverse end of the pawl.

[0010] As an optimization of this case, in order to improve the locking effect, for the die-cutting frame, a second locking strip hole is provided at another right-angle position that is diagonally distributed to the right angle of the opening of the locking strip hole, and the right-angle frame of the second locking strip hole is perpendicular to the right-angle frame of the opening of the locking strip hole; a second locking mechanism is installed at the second locking strip hole, and the structure and installation method of the second locking mechanism are the same as those of the locking mechanism.

[0011] As an optimization of this solution, in order to improve the smoothness of the adjustment plate pressing down on the locking plate, a roller assembly is installed on the chordal side of the adjustment plate.

[0012] As an optimization of this case, in order to improve the fit and locking effect between the side surface of the locking plate and the blade, an anti-slip silicone pad layer is provided on the side surface of the locking plate.

[0013] Beneficial effects: This utility model opens locking strip holes on the edge of the die-cutting frame and installs a locking mechanism in the locking strip holes for use. When locking, the internal tooth ratchet is directly rotated to drive the adjusting plate to press the locking plate downward. The locking plate slides towards the inside of the die-cutting frame to press and lock the die-cutting blade. The unidirectional engagement of the pawl and ratchet teeth ensures that it will not loosen during operation. The operation time is reduced by more than 70% compared with the traditional method, effectively shortening the changeover time and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0016] Figure 3 for Figure 1 A schematic diagram of the locking mechanism.

[0017] Figure 4 for Figure 3 A schematic diagram of the transmission components.

[0018] Figure 5 This is a schematic diagram of the structure of the present invention in Embodiment 2.

[0019] In the diagram: 1. Die-cutting frame; 2. Locking strip hole; 3. Locking plate; 4. Adjusting plate; 5. Rack; 6. Mounting bracket; 7. Mounting shaft; 8. Positioning wheel; 9. Internal toothed ratchet; 10. Pawl; 11. Rocker arm; 12. Unlocking lever; 13. Second locking mechanism. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the accompanying drawings are all in a very simplified form, using non-precise ratios, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Example 1

[0022] like Figure 1-4 As shown in the figure, this embodiment discloses a quick locking device for a die-cutting blade, including a die-cutting frame 1 and a locking mechanism.

[0023] See Figure 1The die-cutting frame 1 is a rectangular frame. A locking strip hole 2 that runs through both the inner and outer sides is provided on the lower right side of the die-cutting frame 1. A "T"-shaped connecting block is provided on the side wall near the inner right corner of the die-cutting frame 1 inside the locking strip hole 2. Sliding grooves are provided on the side walls on both sides of the connecting block.

[0024] See Figure 2 and Figure 3 The locking mechanism includes a locking plate 3, an adjusting plate 4, and a transmission component, from... Figure 3 As can be seen, the locking plate 3 is a right-angled triangular structure, and a "T"-shaped connecting groove adapted to the connecting block is opened on the bottom surface of its hook edge. The locking plate 3 is slidably connected to the connecting block in the locking strip hole 2 through the connecting groove, and the side edge of the locking plate 3 faces the inside of the die-cutting frame 1. The structure and size of the adjusting plate 4 are the same as those of the locking plate 3. The inclined side of the adjusting plate 4 is set opposite to the inclined side of the locking plate 3, and a sliding rod is provided at the angle between the hook edge and the chord edge of the adjusting plate 4. The adjusting plate 4 is slidably connected to the sliding groove in the locking strip hole 2 through the sliding rod. A rack 5 is also installed on the side edge of the adjusting plate 4, and the tooth surface of the rack 5 faces the outside of the die-cutting frame 1.

[0025] See Figure 3 and Figure 4 The transmission components include a mounting frame 6, a mounting shaft 7, a positioning wheel 8, an internal toothed ratchet 9, and a pawl 10. The mounting frame 6 is a square frame structure with an opening on one side. The open end of the mounting frame 6 is connected to the frame of the die-cutting frame 1 on the same side as the locking groove and is sleeved on the outside of the locking plate 3 and the adjusting plate 4. One end of the mounting shaft 7 is fixedly connected to the mounting frame 6, and the positioning wheel 8 is sleeved on the outside of the mounting shaft 7 and locked and fixed thereto.

[0026] from Figure 4 It can be seen that the internal tooth ratchet 9 is movably sleeved outside the positioning wheel 8. The wall thickness of the internal tooth ratchet 9 is greater than that of the positioning wheel 8. A rocker arm 11 is installed on its end face. The outer circumference of the internal tooth ratchet 9 is also provided with a gear structure that matches the rack 5 on the adjustment plate 4, and the two are meshed together. The fixed end of the pawl 10 is connected to the end face of the positioning wheel 8 through a return spring. The anti-reverse end cooperates with the ratchet stop of the internal tooth ratchet 9. The return spring is used to give the pawl 10 elastic potential energy to engage the ratchet. An unlocking lever 12 is also installed on the anti-reverse end of the pawl 10. Example 2

[0027] like Figure 5 The specific structure and implementation method are as shown in Example 1. The difference is that the upper left corner of the die-cutting frame 1 has a second locking strip hole that is the same as the lower right side of the frame. A second locking mechanism 13 is installed at the second locking strip hole 2. The structure and installation method of the second locking mechanism 13 are the same as those of the locking mechanism.

[0028] The adjusting plate 4 has a roller assembly mounted on its chord edge.

[0029] The locking plate 3 has an anti-slip silicone pad layer on its side surface.

[0030] In use, place the die plate inside the die-cutting frame 1, ensuring that its lower left corner aligns with the inner left corner of the die-cutting frame 1. Then, use the rocker arm 11 to rotate the internal toothed ratchet 9. The rack 5 on the outer circumference of the internal toothed ratchet 9 transmits the rotational force to the rack 5, causing the adjusting plate 4 to press down on the locking plate 3. The locked plate 3, under pressure, slides towards the inside of the die-cutting frame 1 within the locking through hole, and its side surface contacts the die-cutting die plate. It also engages with the frame of the die-cutting frame 1 on the other side to clamp and lock the die plate. At this time, the pawl 10, under the potential energy of the return spring, engages with the ratchet teeth of the internal toothed ratchet 9 in one direction to ensure that it will not loosen during operation. After locking the left and right sides, use the second locking mechanism 13 to lock the upper and lower sides of the die plate according to the above steps.

[0031] When the blade plate needs to be replaced, pull the unlocking lever 12 to disengage the pawl 10 from the ratchet 9 and release the lock. Then, use the rocker arm 11 to rotate the ratchet 9 in the opposite direction. At this time, the adjusting plate 4 will no longer press the locking plate 3, allowing the locking plate 3 to slide freely within the locking adjustment range, thus releasing the clamping state on the blade plate. Then, separate the unlocking lever 12 to reset the pawl 10 and engage it with the ratchet 9. The replaced blade plate can then be locked according to the previous steps.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A quick locking device for a die cutting rule, comprising a die cutting frame (1) and a locking mechanism; characterized in that: The die-cut frame (1) is a rectangular frame, a locking strip hole (2) is formed on any one of the straight edges of any one of the right angles of the die-cut frame (1), the locking strip hole (2) is provided with a "T" type connecting block on the side wall close to the right inner corner of the die-cut frame (1), and the side walls on the two sides of the connecting block are provided with a sliding groove on the upper side; The locking mechanism comprises a locking plate (3), an adjusting plate (4) and a transmission component, the locking plate (3) is a right-angled triangle structure, a "T" type connecting groove matched with the connecting block is formed on the bottom surface of the hook edge surface of the locking plate (3), the locking plate (3) is slidably connected with the connecting block in the locking strip hole (2) through the connecting groove, and the hook edge surface of the locking plate (3) faces the inner side of the die-cut frame (1), the adjusting plate (4) has the same structure and size as the locking plate (3), the hypotenuse surface of the adjusting plate (4) is oppositely arranged with the hypotenuse surface of the locking plate (3), and a sliding rod is arranged at the included angle between the hook edge surface and the chord edge surface of the adjusting plate (4), the adjusting plate (4) is slidably connected with the sliding groove in the locking strip hole (2) through the sliding rod, and a rack (5) is further arranged on the hook edge surface of the adjusting plate (4), and the tooth surface of the rack (5) faces the outer side of the die-cut frame (1); The transmission component comprises a mounting frame (6), a mounting shaft (7), a positioning wheel (8), an internal tooth ratchet wheel (9) and a ratchet pawl (10), the mounting frame (6) is a square frame structure with an open side, the open end of the mounting frame (6) is connected with the edge frame of the die-cut frame (1) on the same side of the locking groove and is sleeved outside the locking plate (3) and the adjusting plate (4), one end of the mounting shaft (7) is fixedly connected with the mounting frame (6), and the positioning wheel (8) is sleeved outside the mounting shaft (7) and is fixedly connected with the mounting shaft (7); The internal tooth ratchet wheel (9) is movably sleeved outside the positioning wheel (8), the wall thickness of the internal tooth ratchet wheel (9) is greater than that of the positioning wheel (8), a rocker (11) is arranged on the end surface of the internal tooth ratchet wheel (9), a gear structure matched with the rack (5) on the adjusting plate (4) is further arranged on the outer circumferential surface of the internal tooth ratchet wheel (9), and the two are in meshing connection, the fixed end of the ratchet pawl (10) is connected with the end surface of the positioning wheel (8) through a return spring, the reverse stopping end is in stop cooperation with the ratchet teeth of the internal tooth ratchet wheel (9), the return spring is used for enabling the ratchet pawl (10) to have elastic potential energy for clamping into the ratchet teeth, and an unlocking pull rod (12) is further arranged on the reverse stopping end of the ratchet pawl (10).

2. The quick locking device for die cutting rule according to claim 1, characterized in that: For the die-cut frame (1), a second locking strip hole is arranged at another right angle position which is diagonally distributed with the right angle in which the locking strip hole (2) is formed, the right angle edge frame in which the second locking strip hole is formed is in perpendicular relationship with the right angle edge frame in which the locking strip hole (2) is formed; a second locking mechanism (13) is arranged at the second locking strip hole, and the structure and mounting mode of the second locking mechanism (13) are the same as those of the locking mechanism.

3. The quick locking device for die cutting rule according to claim 2, characterized in that: The chord edge surface of the adjusting plate (4) is provided with a roller set.

4. A quick locking device for a die cutting rule according to any one of claims 1 to 3, characterized in that: The hook edge surface of the locking plate (3) is provided with an anti-skid silica gel pad.

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