A water-cooled die-cutting circular knife and a circular knife die-cutting machine

Abstract

This application relates to the field of die-cutting equipment technology, specifically disclosing a water-cooled die-cutting circular blade and a circular blade die-cutting machine, including a circular blade body and an industrial water chiller. The industrial water chiller has a water inlet and a water outlet. The outer surface of the circular blade body is machined with a die-cutting die, and the interior of the circular blade body is formed into a hollow cavity. Sealing joints are respectively provided at both ends of the circular blade body. The water inlet and water outlet of the industrial water chiller are respectively connected to the two sealing joints through water pipes. The circular blade die-cutting machine provided by this application uses a chiller to provide cooling water to the die-cutting circular blade during the die-cutting process. In this way, the die-cutting circular blade can be cooled down, thereby avoiding overheating of the die after long-term production and causing the glue area to stick back, effectively improving the die-cutting yield.

Description

Technical Field

[0001] This application relates to the field of die-cutting equipment technology, and specifically discloses a water-cooled die-cutting circular knife and a circular knife die-cutting machine. Background Technology

[0002] A rotary die-cutting machine is a device that uses an upper circular blade and a lower bottom roller to cut the material fed by the paper feeding roller into a certain shape. When existing die-cutting equipment performs long-term die-cutting of double-sided adhesive products such as substrate-free double-sided adhesive and thick-coated double-sided adhesive, the edge of the adhesive will soften due to the heat of the circular blade mold, making it easy to stick back, which in turn causes the problem of difficult waste removal.

[0003] To address the aforementioned issues, this application discloses a water-cooled die-cutting circular knife and a circular knife die-cutting machine. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this application discloses a water-cooled die-cutting circular knife and a circular knife die-cutting machine.

[0005] To achieve the above objectives, the technical solution adopted in this application is: a water-cooled die-cutting circular blade, comprising a circular blade body and an industrial water chiller, wherein the industrial water chiller has a water inlet and a water outlet, the outer surface of the circular blade body is machined with a die-cutting die, the interior of the circular blade body is formed as a hollow cavity, and sealing joints are respectively provided at both ends of the circular blade body, and the water inlet and water outlet of the industrial water chiller are respectively connected to the two sealing joints through water pipes.

[0006] More preferably, a temperature sensor is provided inside the hollow cavity.

[0007] More preferably, the sealing joint includes a sealing sleeve, a sealing bearing, and a connecting pipe. The sealing sleeve is fitted onto the roller core of the circular cutter body and welded and fixed to the roller core of the circular cutter body. The sealing bearing is interference-fitted inside the sealing sleeve, and one end of the connecting pipe is inserted into the inner ring of the sealing bearing.

[0008] More preferably, the water pipe is provided with an external threaded connector, and the other end of the connecting pipe is provided with an internal threaded connector. When the water pipe and the connecting pipe are fixed together, the internal threaded connector is screwed onto the external threaded connector.

[0009] More preferably, the industrial water chiller is equipped with valves at its inlet and outlet.

[0010] A circular die-cutting machine includes a die holder, a lower bottom roller, a power motor, and a water-cooled circular die-cutting blade as described above. The lower bottom roller and the water-cooled circular die-cutting blade are disposed inside the die holder and connected by gear transmission. The power motor is connected to the lower bottom roller outside the die holder.

[0011] This application achieves the following beneficial effects: The circular die-cutting machine provided in this application uses a refrigeration unit to provide cooling water to the die-cutting circular blade during the die-cutting process. In this way, the die-cutting circular blade can be cooled down, thereby avoiding overheating of the mold after long-term production and causing the glue area to stick back, effectively improving the die-cutting yield.

[0012] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures shown in the description and the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the disclosure of this application and, together with the specification, serve to explain the principles of this disclosure.

[0014] Figure 1 This is a schematic diagram of the water-cooled die-cutting circular blade structure disclosed in this application; Figure 2 This is a schematic diagram of the circular die-cutting machine disclosed in this application; In the diagram: 10. Circular blade body; 11. Die-cutting die; 12. Hollow cavity; 20. Industrial water chiller; 30. Sealing joint; 31. Sealing sleeve; 32. Sealed bearing; 33. Connecting pipe fitting; 34. Internal threaded joint; 40. Water pipe; 41. External threaded connector; 50. Temperature sensor; 60. Valves; 70. Knife holder; 80. Lower bottom roller; 90. Power motor; 100. Gear. Detailed Implementation

[0015] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0016] In the description of this application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the component or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Example

[0017] To address the problem that existing die-cutting equipment, when performing prolonged die-cutting of double-sided adhesive products such as substrate-free double-sided adhesive and thickly coated double-sided adhesive, experiences softening of the adhesive edges due to heat from the circular die, leading to easy re-adhesion and difficulty in waste removal, this paper refers to... Figure 1 and Figure 2 As shown, this application discloses a water-cooled die-cutting circular blade, including a circular blade body 10 and an industrial water chiller 20 (the structure of the industrial water chiller is known technology and will not be described in detail here). The industrial water chiller 20 has a water inlet and a water outlet. The outer surface of the circular blade body 10 is machined with a die-cutting die 11. The interior of the circular blade body 10 is formed as a hollow cavity 12. Both ends of the circular blade body 10 are respectively provided with sealing joints 30. The water inlet and water outlet of the industrial water chiller 20 are respectively connected to the two sealing joints 30 through water pipes 40.

[0018] After the circular blade body 10 is installed with the die-cutting machine, it will not affect the normal operation of the die-cutting work when connected to the water pipe 40 through the sealing joint 30. When the circular blade body 10 participates in the die-cutting of double-sided adhesive products, the industrial water chiller 20 will inject cooling water into the hollow cavity 12 through the water pipe 40. In this way, the temperature of the circular blade body 10 can be reduced, so as not to cause the edge of the adhesive to soften.

[0019] In order to monitor the temperature inside the hollow cavity 12 in real time, this application also provides a temperature sensor 50 inside the hollow cavity 12. In actual use, the industrial chiller can change the water in a timely manner based on the temperature of the cooling water detected by the temperature sensor 50, thereby ensuring the cooling effect.

[0020] In a preferred embodiment, the sealing joint of this application includes a sealing sleeve 31, a sealing bearing 32, and a connecting pipe 33. The sealing sleeve 31 is fitted onto the roller core of the circular cutter body 10 and welded and fixed to the roller core of the circular cutter body 10. The sealing bearing 32 is interference-fitted inside the sealing sleeve 31. One end of the connecting pipe 33 is inserted into the inner ring of the sealing bearing 32. The water pipe 40 is provided with an external threaded connector 41, and the other end of the connecting pipe 33 is provided with an internal threaded connector 34. When the water pipe 40 is fixed to the connecting pipe 33, the internal threaded connector 34 is screwed onto the external threaded connector 41.

[0021] When the circular cutter body 10 rotates, the connecting pipe 33 and the water pipe 40 can also rotate. In this way, the water pipe 40 can be prevented from getting tangled without affecting the cooling water's cooling of the circular cutter mold.

[0022] In one specific embodiment, the industrial water chiller 20 of this application is provided with valves 60 at the inlet and outlet. In actual use, water can be supplied to or drained from the circular knife body 10 by controlling the operation of the two valves 60. As for the type of valve 60, in specific implementation, solenoid valves are preferred.

[0023] Based on the structure of the water-cooled die-cutting circular blade described above, this application also discloses a circular blade die-cutting machine, including a blade holder 70, a lower bottom roller 80, a power motor 90, and a water-cooled die-cutting circular blade as described above. The lower bottom roller 80 and the water-cooled die-cutting circular blade are disposed inside the blade holder 70 and are connected by a gear 100. The power motor 90 is connected to the lower bottom roller 80 outside the blade holder 70. In a specific implementation, the double-sided adhesive product passes between the water-cooled die-cutting circular blade and the lower bottom roller 80. When the drive motor drives the lower bottom roller 80 to rotate, the water-cooled die-cutting circular blade can perform die-cutting processing on the double-sided adhesive product through the gear 100 transmission.

[0024] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be used to limit the scope of protection of this application. All equivalent changes or modifications made in accordance with the spirit and essence of this application should be included within the scope of protection of this application.

Claims

1. A water-cooled die-cutting circular blade, characterized in that, The device includes a circular cutter body (10) and an industrial water chiller (20). The industrial water chiller (20) has an inlet and an outlet. The outer surface of the circular cutter body (10) is machined with a die-cutting die (11). The interior of the circular cutter body (10) is formed as a hollow cavity (12). Both ends of the circular cutter body (10) are respectively provided with sealing joints (30). The inlet and outlet of the industrial water chiller (20) are respectively connected to the two sealing joints (30) through water pipes (40).

2. The water-cooled die-cutting circular blade according to claim 1, characterized in that, A temperature sensor (50) is installed inside the hollow cavity (12).

3. The water-cooled die-cutting circular blade according to claim 1, characterized in that, The sealing joint includes a sealing sleeve (31), a sealing bearing (32), and a connecting pipe (33). The sealing sleeve (31) is fitted onto the roller core of the circular cutter body (10) and welded and fixed to the roller core of the circular cutter body (10). The sealing bearing (32) is interference-fitted inside the sealing sleeve (31). One end of the connecting pipe (33) is inserted into the inner ring of the sealing bearing (32).

4. A water-cooled die-cutting circular blade according to claim 3, characterized in that, The water pipe (40) is provided with an external threaded connector (41), and the other end of the connecting pipe fitting (33) is provided with an internal threaded connector (34). When the water pipe (40) and the connecting pipe fitting (33) are fixed together, the internal threaded connector (34) is screwed onto the external threaded connector (41).

5. A water-cooled die-cutting circular blade according to claim 1, characterized in that, The industrial water chiller (20) is equipped with valves (60) at its inlet and outlet.

6. A circular die-cutting machine, characterized in that, It includes a blade holder (70), a bottom roller (80), a power motor (90), and any one of the water-cooled die-cutting circular blades as described in claims 1-5. The bottom roller (80) and the water-cooled die-cutting circular blade are disposed inside the blade holder (70) and are connected by a gear (100). The power motor (90) is connected to the bottom roller (80) outside the blade holder (70).

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