Cutter disc suspension device of cutting machine

Abstract

The utility model discloses a cutter head suspension device of a cutting machine, which comprises a cutting head base, a support is arranged on the cutting head base, an air cylinder is arranged on one side of the support, a cutter head assembly is connected on the cutting head base, the lower end of the cutter head assembly is connected with a liftable cutter head, and the cutter head is connected with a cutter head. The output end of the air cylinder is connected with the cutterhead through a cutterhead fixing frame, the double-acting air cylinder is connected with a gas loop, the gas loop comprises a gas source, a main valve, a pressure reducing valve, a proportional valve and a three-position middle sealing electromagnetic valve which are sequentially connected, the three-position middle sealing electromagnetic valve is connected with the double-acting air cylinder, the double-acting air cylinder comprises an upper gas cavity and a lower gas cavity, and the upper gas cavity is communicated with the lower gas cavity. A piston is arranged between the upper air cavity and the lower air cavity, the lower end of the piston is connected with a push rod, the push rod is connected with the cutterhead, the double-acting air cylinder is arranged, air is introduced into the upper air cavity and the lower air cavity at the same time, opposite force is generated through the air cavity on the other side, the rigidity of a system is enhanced, and vibration is restrained.

Description

Technical Field

[0001] This utility model relates to the field of automatic cutting machine technology, specifically to a cutting machine blade suspension device. Background Technology

[0002] Automatic cutting machines are used for cutting and slitting sheet materials in various industries. They require no molds; controlled by system software, they directly cut the product. Simply set the relevant parameters on the operating platform, and the computer transmits the corresponding instructions to the cutting machine. The machine then quickly cuts according to the received design drawings, boasting a high degree of automation and simple operation. It is currently the cutting equipment used in many industries.

[0003] Currently, the types and disadvantages of cutter discs in the cutting machine industry are as follows: 1. No cutter disc suspension function: When the cutter disc is in direct contact with the fabric, it will rub against the upper material, which will cause the upper material to shift and the cut finished product to be unqualified; 2. Fixed cutter disc suspension structure: (1) Fixed suspension height, the height of different fabrics needs to be manually adjusted; (2) Complex structure, high failure rate, and requires frequent maintenance and adjustment; (3) Long adjustment time, affecting production efficiency; 3. Manual cylinder structure: (1) Since the height is different each time, the cutter disc rise height needs to be manually adjusted before the equipment is started, which affects production efficiency; (2) Complex structure and high maintenance cost; 4. Servo electric cylinder structure: (1) High cost; (2) Complex equipment structure and high failure rate. Therefore, this utility model provides a cutter disc suspension device for cutting machines, which adopts a system control method, does not require manual calibration, and makes the suspension height easy to control. Utility Model Content

[0004] The purpose of this invention is to provide a levitation device for a cutting machine blade disc. It employs a system control method to precisely control the levitation height of the cutting machine blade disc without manual calibration, ensuring a consistent levitation height. The device eliminates the need for mechanical adjustments, features a simple structure, low failure rate, and minimal maintenance and calibration workload. Through the combination of pneumatic components, a low-cost, highly reliable non-contact levitation solution is achieved.

[0005] This utility model provides the following technical solution: a cutting machine blade suspension device, including a cutting head base, a bracket mounted on the cutting head base, a cylinder mounted on one side of the bracket, a blade assembly connected to the cutting head base, a liftable blade assembly connected to the lower end of the blade assembly, the output end of the cylinder connected to the blade through a blade fixing bracket, the cylinder being a double-acting cylinder, a gas circuit for controlling the suspension of the blade connected to the double-acting cylinder, the gas circuit including a gas source, a main valve, a pressure reducing valve, a proportional valve and a three-position centrally sealed solenoid valve connected in sequence, the three-position centrally sealed solenoid valve being connected to the double-acting cylinder, the double-acting cylinder including an upper air chamber and a lower air chamber, a piston disposed between the upper air chamber and the lower air chamber, a push rod connected to the lower end of the piston, and the push rod being connected to the blade.

[0006] To increase the reverse force and reduce cylinder vibration, the three-position central sealing solenoid valve includes a first air outlet and a second air outlet. The first air outlet is connected to the upper air chamber, and the second air outlet is connected to the lower air chamber.

[0007] To regulate the cylinder exhaust flow and prevent oscillation, a throttle valve is connected between the cylinder and the three-position central sealing solenoid valve.

[0008] According to the above technical solution, the cutter head assembly includes a rotary bearing seat connected in the cutter head base, a rotary bracket connected to the lower end of the rotary bearing seat, a guide cutter seat connected to the top wall of the rotary bracket, a clamping blade connected to the side of the guide cutter seat, and a cutter clamped between the two clamping blades.

[0009] To control the extension and retraction of the cutter head, a linear guide rail is inserted into the lower end of the rotating bracket, and the lower end of the linear guide rail is connected to the cutter head.

[0010] To adjust the orientation of the cutter head, a cutter head timing pulley is connected to the upper end of the rotary bearing housing, and the cutter head timing pulley is connected to the drive device via a belt.

[0011] In order to detect the cutting blade and replace it in time, a broken blade detection sensor is also connected to the bracket, and the broken blade detection sensor is located on the side of the cutting blade.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] (1) By setting up a double-acting cylinder, gas is introduced into the upper and lower air chambers at the same time. The reverse force is generated by the air chamber on the other side, which enhances the rigidity of the system and suppresses vibration. When the pressure in the lower air chamber is greater than the pressure in the upper air chamber, the cutter head rises. When the pressure in the lower air chamber is less than the pressure in the upper air chamber, the cutter head falls.

[0014] (2) By using a three-position central sealing solenoid valve, the cylinder can be reset when the power is off, and the two air chambers of the cylinder can be sealed to maintain the height of the cutter head and prevent the cutter head from falling. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a perspective view of the overall structure of this utility model from another angle;

[0018] Figure 3 This is a front view of the overall structure of this utility model;

[0019] Figure 4 This is a perspective view of the cutter head assembly of this utility model;

[0020] Figure 5 This is a perspective view of the cutter head assembly of this utility model from another angle;

[0021] Figure 6 This is the control principle diagram of the cylinder of this utility model;

[0022] In the diagram: 1. Cutting head base; 2. Bracket; 3. Cylinder; 31. Cutting head fixing bracket; 32. Upper air chamber; 33. Lower air chamber; 4. Cutting head assembly; 41. Cutting head synchronous pulley; 42. Rotary bearing seat; 43. Rotary bearing seat cover; 44. Rotary bracket; 45. Guide cutter seat; 46. Clipping blade; 47. Linear guide rail; 48. Cutting head; 5. Cutting blade; 6. Main valve; 7. Pressure reducing valve; 8. Proportional valve; 9. Three-position center-sealed solenoid valve; 91. First air outlet; 92. Second air outlet. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 6This utility model provides a technical solution: a suspending device for a cutting machine cutter head, including a cutting head base 1, a bracket 2 mounted on the side of the cutting head base 1 by screws, a cylinder 3 mounted on one side of the bracket 2 by screws, a cutter head assembly 4 connected to the cutting head base 1, a liftable cutter head 48 connected to the lower end of the cutter head assembly 4, the output end of the cylinder 3 connected to the cutter head 48 through a cutter head fixing frame 31, the extension and retraction of the cylinder 3 controls the up and down movement of the cutter head fixing frame 31, thereby driving the up and down movement of the cutter head 48 and controlling the height of the cutter head 48, the cylinder 3 is a double-acting cylinder. A double-acting cylinder 3 is connected to a gas circuit for controlling the suspension of the cutter head 48. The gas circuit includes a gas source, a main valve 6, a pressure reducing valve 7, a proportional valve 8, and a three-position centrally sealed solenoid valve 9 connected in sequence. The three-position centrally sealed solenoid valve 9 is connected to the cylinder 3. The cylinder 3 includes an upper air chamber 32 and a lower air chamber 33. A piston is arranged between the upper air chamber 32 and the lower air chamber 33. The lower end of the piston is connected to a push rod, which is connected to the cutter head 48. The push rod communicates with the upper air chamber 32 through the first air outlet 91 of the three-position centrally sealed solenoid valve 9, and with the lower air chamber 33 through the second air outlet 92. By simultaneously supplying air to both the upper air chamber 32 and the lower air chamber 33, when the three-position central sealing solenoid valve 9 is in the right position, the air intake volume of the upper air chamber 32 is greater than that of the lower air chamber 33, and the pressure in the upper air chamber 32 is greater than that in the lower air chamber 33, causing the piston to move downwards, which in turn drives the push rod and the cutter head 48 to descend. When the three-position central sealing solenoid valve 9 is in the left position, the air intake volume of the upper air chamber 32 is less than that of the lower air chamber 33, and the pressure in the upper air chamber 32 is less than that in the lower air chamber 33, causing the piston to move upwards, which in turn drives the push rod and the cutter head 48 to rise ... When in the neutral position, the pressure in the upper air chamber 32 and the lower air chamber 33 is the same, locking the air pressure in both chambers and keeping the cylinder 3 in its current position. When the cutter head 48 is in the downward motion, the air pressure in the lower air chamber 33 will provide a reverse force, enhancing the system rigidity and suppressing vibration. At the same time, the pressure in the lower air chamber 33 will generate an upward thrust on the piston, counteracting the gravity of the cutter head 48. Meanwhile, when the power is off, the three-position central sealing solenoid valve 9 resets and switches to the neutral position. At this time, the air pressure in the cylinder is sealed, and the cutter head 48 remains in a suspended state, preventing the cutter head 48 from falling.

[0025] A throttle valve is connected between cylinder 3 and three-position central sealing solenoid valve 9 to adjust the cylinder exhaust flow, control the suspension speed damping, and avoid oscillation.

[0026] like Figure 1 , 4 As shown in Figure 5, the cutter head assembly 4 includes a rotary bearing seat 42 connected inside the cutter head base 1. The inner ring of the rotary bearing seat 42 is fixed on the cutter head base 1, and the outer ring of the rotary bearing seat 42 is sleeved on the inner ring. The lower end of the outer ring of the rotary bearing seat 42 is connected to a rotary bracket 44. A guide cutter seat 45 is connected to the top wall of the rotary bracket 44. A clamping blade 46 is connected to the side of the guide cutter seat 45, and a cutter 5 is clamped between the two clamping blades 46.

[0027] like Figure 4 As shown, a linear guide rail 47 is inserted into the lower end of the rotating bracket 44. The lower end of the linear guide rail 47 is connected to the cutter head 48. The up and down movement of the linear guide rail 47 guides the up and down movement of the cutter head 48, making the up and down movement of the cutter head 48 smoother.

[0028] The upper end of the rotary bearing housing 42 is connected to the cutter head timing pulley 41. The cutter head timing pulley 41 is connected to the drive device via a belt. The drive device is a motor. The cutter head timing pulley 41 is connected to the pulley on the output end of the motor.

[0029] The bracket 2 is also connected to a broken blade detection sensor 10, which is located on the side of the cutter 5. The broken blade detection sensor 10 detects the cutter 5. When the cutter 5 breaks, it is detected by the broken blade detection sensor 10 and an alarm is issued, so that the blade can be replaced in time.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting machine blade suspension device, comprising a cutting head base, a bracket mounted on the cutting head base, a cylinder mounted on one side of the bracket, a blade assembly connected to the cutting head base, and a liftable blade assembly connected to the lower end of the blade assembly, characterized in that: The output end of the cylinder is connected to the cutter head via a cutter head mounting bracket. The cylinder is a double-acting cylinder, and a gas circuit for controlling the suspension of the cutter head is connected to the double-acting cylinder. The gas circuit includes a gas source, a main valve, a pressure reducing valve, a proportional valve, and a three-position centrally sealed solenoid valve connected in sequence. The three-position centrally sealed solenoid valve is connected to the double-acting cylinder. The double-acting cylinder includes an upper air chamber and a lower air chamber. A piston is arranged between the upper air chamber and the lower air chamber. A push rod is connected to the lower end of the piston, and the push rod is connected to the cutter head.

2. The cutting machine blade suspension device according to claim 1, characterized in that: The three-position centrally sealed solenoid valve includes a first air outlet and a second air outlet. The first air outlet is connected to the upper air chamber, and the second air outlet is connected to the lower air chamber.

3. The cutting machine blade suspension device according to claim 1, characterized in that: A throttle valve is connected between the cylinder and the three-position central sealing solenoid valve.

4. The cutting machine blade suspension device according to claim 1, characterized in that: The cutter head assembly includes a rotary bearing seat connected to the cutter head base. A rotary support is connected to the lower end of the rotary bearing seat. A guide cutter seat is connected to the top wall of the rotary support. A clamping blade is connected to the side of the guide cutter seat. A cutter is clamped between the two clamping blades.

5. A cutting machine blade suspension device according to claim 4, characterized in that: The lower end of the rotating bracket is connected to a linear guide rail, and the lower end of the linear guide rail is connected to the cutter head.

6. The cutting machine blade suspension device according to claim 4, characterized in that: The upper end of the rotary bearing housing is connected to a cutter head timing pulley, which is connected to the drive device via a belt.

7. The cutting machine blade suspension device according to claim 1, characterized in that: The bracket is also connected to a broken blade detection sensor, which is located on the side of the cutting blade.

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