A cutter drive module for cutting a flexible sheet

Abstract

The utility model relates to sheet material cutter structure technical field discloses a cutting flexible sheet's cutter drive module, including main support, is equipped with the cutter component, the rotary knife subassembly and the guide component on main support, the cutter component includes the servo motor on main support, and the connecting rod transmission spare of the rotary action conversion is linear reciprocating motion, connecting rod transmission spare and main support rotatory connection, connecting rod transmission spare is equipped on servo motor output shaft, the output end of connecting rod transmission spare is equipped with the elastic connecting piece that can take place distortion, the elastic connecting piece is in its axis is the datum and presents spiral twist shape, and the bottom of elastic connecting piece is equipped with cutting knife, the rotary knife subassembly and the guide component all are located cutting knife outside, and the rotary knife subassembly can drive guide component and cutting knife to rotate simultaneously. The utility model, can satisfy the different cutting needs of cutting knife multi -angle, make the applicability of cutting greatly improve, and the stable performance of flexible sheet cutting work is convenient.

Description

Technical Field

[0001] This utility model relates to the field of sheet cutting blade structure technology, specifically to a cutting blade drive module for cutting flexible sheets. Background Technology

[0002] For cutting flexible sheets, a common method is to use a reciprocating cutter to cut along a specified path, thereby cutting the flexible sheet or cutting its surface into the corresponding shape.

[0003] Common cutting techniques include laser cutting and blade cutting. When using blade cutting, a common approach is to use a linkage structure to convert the rotational motion of the motor into linear reciprocating motion, thereby driving the cutter to perform up-and-down cutting motions.

[0004] For example, the utility model patent with announcement number CN210161230U discloses a new flexible material cutting head mechanism. In this patent, the blade is driven to move up and down reciprocally through the cooperation of the output shaft, eccentric wheel, drive linkage and connecting rod, thereby enabling the cutting of flexible materials.

[0005] However, in the above technical solutions, when the rigid drive linkage and the linkage cooperation structure are used to drive the blade, the blade can meet the transmission requirements for up and down movement. If the blade needs to rotate to change its cutting path to meet the cutting requirements of different paths such as circles and arcs, then a device is needed on the machine tool to drive the entire blade cutting mechanism to move and rotate, which occupies a large area and is costly. Based on this, this application provides a cutting blade drive module for cutting flexible sheets to solve the above problems. Utility Model Content

[0006] Based on the above description, this utility model provides a cutting drive module for cutting flexible sheets to solve the problem that the cutting mechanism of the prior art is not convenient to meet the cutting requirements of different paths.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A cutting blade drive module for cutting flexible sheet material includes a main support, and the main support is provided with a blade drive assembly, a blade rotating assembly and a guide assembly;

[0008] The drive assembly includes a servo motor mounted on the main support and a linkage transmission component that converts rotational motion into linear reciprocating motion. The linkage transmission component is rotatably connected to the main support and is mounted on the output shaft of the servo motor.

[0009] The output end of the linkage transmission component is provided with an elastic connector capable of torsional deformation. The elastic connector is spirally tortuous with its axis as a reference, and a cutting blade is provided at the bottom end of the elastic connector.

[0010] Both the rotating blade assembly and the guide assembly are located outside the cutting blade, and the rotating blade assembly can simultaneously drive the guide assembly and the cutting blade to rotate.

[0011] The above technical solution allows the cutting blade to be connected using an elastic connector, enabling it to move linearly up and down while also rotating together with the elastic connector. The rotating blade assembly drives the cutting blade to rotate, and the guide assembly guides the cutting blade.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the connecting rod transmission component includes a drive shaft rotatably connected to the main support via a bearing, a transmission wheel fixed to the outside of the drive shaft, and a crank rotatably connected to the side of the transmission wheel away from the drive shaft axis via a rotating shaft.

[0014] The above technical solution enables the drive shaft to drive the transmission wheel to rotate and drive the crank to perform circular motion.

[0015] Furthermore, the elastic connector is made of spring steel, the crank is fixed to the top end of the spring steel, and the bottom end of the spring steel is fixed to the cutting blade.

[0016] Through the above technical solution, spring steel can have the ability to twist and deform, and can normally apply downward thrust or upward tension after twisting.

[0017] Furthermore, the spring steel has a torsion angle α relative to its axis, where 32° < α < 720°.

[0018] The above technical solution can meet the rotation requirements of the cutting blade.

[0019] Furthermore, the output shaft of the servo motor passes through the outside of the main bracket and is fixedly connected to the end of the drive shaft, and the main bracket is provided with a support cylinder.

[0020] The above technical solution enables the servo motor to drive the drive shaft to rotate.

[0021] Furthermore, the outer side of the drive shaft is rotatably connected to the inner side of the support cylinder via a bearing, and the support cylinder has a support hole through which the drive shaft passes.

[0022] Through the above technical solution, the support cylinder can provide support for the drive shaft.

[0023] Furthermore, the guide assembly includes a guide shell located outside the cutting blade, and a guide block and two linkage rods are provided on the top of the guide shell;

[0024] A cutting hole for the cutting blade to pass through is provided between the top and bottom of the guide shell, and a guide groove for the cutting blade to be inserted and slid on the outside of the guide block is provided. The top and bottom of the guide groove are both open, and the inside of the guide groove is connected to the inside of the cutting hole.

[0025] The above technical solution can guide and limit the vertical movement path of the cutting blade through the cutting hole and guide groove.

[0026] Furthermore, the rotary cutter assembly includes a support frame and a power module mounted on the main support, with a driven gear rotatably connected to the top of the support frame and driven by the power module.

[0027] A limiting plate is provided between the top ends of the two linkage rods, and two limiting blocks are provided on the support frame. The limiting blocks are L-shaped, and the side of the limiting block near the limiting plate extends to the top of the driven gear. The limiting plate can be placed close to the top of the two limiting blocks.

[0028] Through the above technical solution, the limiting block can support the limiting disk, preventing it from directly contacting the rotating driven gear.

[0029] Furthermore, the driven gear is provided with a connecting cylinder at the bottom, and the top and bottom of the connecting cylinder are both open. The top of the support frame is provided with a circular hole for the connecting cylinder to pass through. The outer side of the connecting cylinder is rotatably connected to the inner side of the circular hole through a bearing.

[0030] The power module includes a small motor mounted on the main support. The output shaft of the small motor is equipped with a drive gear, and the drive gear meshes with the driven gear.

[0031] Through the above technical solution, the driven gear can rotate normally through the connecting cylinder; the small motor drives the driving gear to rotate, which in turn drives the driven gear to rotate, thus realizing the transmission of kinetic energy.

[0032] Furthermore, the driven gear is provided with sliding holes for two linkage rods to pass through and slide, and the linkage rods are located inside the connecting cylinder;

[0033] The top of both the limiting plate and the driven gear has a movable hole for the spring steel to move, and the movable hole is connected to the inside of the connecting cylinder.

[0034] The above technical solution enables the driven gear to rotate and push the linkage rod to move, which in turn drives the limit plate, linkage rod and guide shell to rotate together. The guide shell then drives the cutting blade to rotate, thus changing the cutting direction.

[0035] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0036] 1. By using spring steel as a connecting component, a connection is formed between the crank and the cutting blade that allows the cutting blade to rotate and move up and down normally. This allows the rotating blade assembly to be directly mounted on the main support to drive the cutting blade to rotate, meeting the different cutting needs of the cutting blade at multiple angles and greatly improving the applicability of the cutting process.

[0037] 2. With the cooperation of the rotating blade assembly and the guide assembly, the cutting blade can drive the guide assembly to rotate together when it rotates, so that the guide assembly can continuously guide the cutting blade in a straight line, thereby ensuring the stable cutting requirements of the cutting blade and facilitating the stable operation of flexible sheet cutting. Attached Figure Description

[0038] Figure 1 A schematic diagram of the overall structure of a cutting drive module for cutting flexible sheets provided in an embodiment of this utility model;

[0039] Figure 2 This is a front view schematic diagram of an embodiment of the present utility model;

[0040] Figure 3 This is a schematic diagram of the crank connection structure in an embodiment of the present utility model;

[0041] Figure 4 This is a schematic diagram of the spring steel structure in an embodiment of this utility model;

[0042] Figure 5 This is an embodiment of the present utility model. Figure 1 A magnified view of part A in the middle;

[0043] Figure 6 This is a schematic diagram of the connection structure between the rotary cutter assembly and the guide assembly in an embodiment of this utility model.

[0044] Attached reference numerals: 1. Main support;

[0045] 2. Drive assembly; 21. Servo motor; 22. Drive shaft; 23. Transmission wheel; 24. Crank; 25. Spring steel; 26. Cutting blade; 27. Support cylinder;

[0046] 3. Rotary cutter assembly; 31. Support frame; 32. Driven gear; 33. Power module; 34. Limit plate; 35. Limit block;

[0047] 4. Guide assembly; 41. Guide shell; 42. Guide block; 43. Linkage rod. Detailed Implementation

[0048] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0050] Example: Reference Figure 1 and Figure 2 A cutting blade drive module for cutting flexible sheets includes a main support 1, on which a blade drive assembly 2, a rotating blade assembly 3, and a guide assembly 4 are mounted. The blade drive assembly 2 includes a servo motor 21 mounted on the main support 1 and a linkage transmission component that converts rotational motion into linear reciprocating motion. The linkage transmission component is rotatably connected to the main support 1 and is mounted on the output shaft of the servo motor 21. The output end of the linkage transmission component is provided with an elastic connector capable of torsional deformation. The elastic connector is helically tortuous with its axis as a reference, and a cutting blade 26 is provided at the bottom end of the elastic connector. The rotating blade assembly 3 and the guide assembly 4 are both located outside the cutting blade 26, and the rotating blade assembly 3 can simultaneously drive the guide assembly 4 and the cutting blade 26 to rotate.

[0051] It should be noted that both the drive assembly 2 and the rotating assembly 3 are electrically connected to the main controller and the power supply. The main controller can be a computer or other existing known control device. The electrical connection technology is a publicly available technology, so it will not be described in detail.

[0052] refer to Figure 2 and Figure 3 The linkage transmission component includes a drive shaft 22 rotatably connected to the main support 1 via a bearing. A transmission wheel 23 is fixed on the outside of the drive shaft 22. A crank 24 is rotatably connected to the side of the transmission wheel 23 away from the axis of the drive shaft 22 via a rotating shaft, so that the drive shaft 22 can drive the transmission wheel 23 to rotate and drive the crank 24 to perform circular motion.

[0053] refer to Figure 3 and Figure 4 The elastic connector is spring steel 25. The crank 24 is fixed to the top of the spring steel 25, and the bottom of the spring steel 25 is fixed to the cutting blade 26. The spring steel 25 has the ability to twist and deform, and can normally apply downward thrust or upward tension after twisting. The twist angle of the spring steel 25 with its axis as the reference is α, 32°<α<720°, which can meet the rotation requirements of the cutting blade 26.

[0054] It should be noted that the initial twist angle of the spring steel 25 is between 32° and 60°, and the rotation direction of the cutting blade 26 is the same as the twist direction of the spring steel 25.

[0055] refer to Figure 2 The output shaft of the servo motor 21 passes through the outside of the main bracket 1 and is fixedly connected to the end of the drive shaft 22. The main bracket 1 is provided with a support cylinder 27, so that the servo motor 21 can drive the drive shaft 22 to rotate.

[0056] In use, the servo motor 21 drives the drive shaft 22 to rotate, which causes the transmission wheel 23 to rotate and drive the crank 24 to make circular motion.

[0057] refer to Figure 2 The outer side of the drive shaft 22 is rotatably connected to the inner side of the support cylinder 27 via a bearing. The support cylinder 27 has a support hole through which the drive shaft 22 passes. The support cylinder 27 can support the drive shaft 22.

[0058] refer to Figure 5 and Figure 6 The guide assembly 4 includes a guide shell 41 located outside the cutter 26. The top of the guide shell 41 is provided with a guide block 42 and two linkage rods 43. A cutting hole for the cutter 26 to pass through is opened between the top and bottom of the guide shell 41. A guide groove for the cutter 26 to be inserted and slid is opened on the outside of the guide block 42. The top and bottom of the guide groove are both open. The inside of the guide groove is connected to the inside of the cutting hole. The cutting hole and the guide groove can guide and limit the vertical movement path of the cutter 26.

[0059] When in use, when the crank 24 makes a circular motion, it will pull or push the cutting blade 26 to move through the twisted spring steel 25. With the guiding and limiting effect of the cutting hole and guide groove on the cutting blade 26, the cutting blade 26 can be prevented from deviating, so that it can only make vertical reciprocating motion up and down to achieve normal cutting action.

[0060] refer to Figure 6 The rotary cutter assembly 3 includes a support frame 31 and a power module 33 mounted on the main support 1. The top of the support frame 31 is rotatably connected to a driven gear 32 that can be driven by the power module 33. A limiting disc 34 is provided between the tops of the two linkage rods 43. The support frame 31 is provided with two limiting blocks 35. The limiting blocks 35 are L-shaped. The side of the limiting block 35 near the limiting disc 34 extends to the top of the driven gear 32. The limiting disc 34 can be placed close to the tops of the two limiting blocks 35. The limiting blocks 35 can support the limiting disc 34 and prevent it from directly contacting the rotating driven gear 32.

[0061] refer to Figure 6The driven gear 32 has a connecting cylinder at its bottom, with openings at both the top and bottom. The support frame 31 has a circular hole at its top for the connecting cylinder to pass through. The outer side of the connecting cylinder is rotatably connected to the inner side of the circular hole via a bearing. The power module 33 includes a small motor mounted on the main support 1. The output shaft of the small motor has a drive gear, which meshes with the driven gear 32. The connecting cylinder allows the driven gear 32 to rotate normally. The small motor drives the drive gear to rotate, which in turn drives the driven gear 32 to rotate, thus realizing the transfer of kinetic energy.

[0062] refer to Figure 6 The driven gear 32 has sliding holes for two linkage rods 43 to pass through and slide. The linkage rods 43 are located inside the connecting cylinder. The top of the limiting plate 34 and the driven gear 32 are both provided with movable holes for the spring steel 25 to move. The movable holes are connected to the inside of the connecting cylinder, so that when the driven gear 32 rotates, it can push the linkage rods 43 to move, which in turn can drive the limiting plate 34, linkage rods 43 and guide shell 41 to rotate together. Then, the guide shell 41 drives the cutting blade 26 to rotate, thus changing the cutting direction.

[0063] In use, the small motor drives the drive gear to rotate, which in turn drives the driven gear 32 to rotate, thereby pushing the linkage rod 43 to rotate as well, and causing the guide shell 41 to rotate. This allows the cutting blade 26 to rotate under the cooperation of the cutting hole on the guide shell 41 and the guide groove on the guide block 42, thus changing the cutting direction.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting blade drive module for cutting flexible sheets, characterized in that, It includes a main support (1), on which a drive assembly (2), a rotating assembly (3) and a guide assembly (4) are provided; The drive assembly (2) includes a servo motor (21) mounted on the main support (1) and a linkage transmission component that converts rotational motion into linear reciprocating motion. The linkage transmission component is rotatably connected to the main support (1) and is mounted on the output shaft of the servo motor (21). The output end of the linkage transmission component is provided with an elastic connector capable of torsional deformation. The elastic connector is spirally tortuous with its axis as a reference, and a cutting blade (26) is provided at the bottom end of the elastic connector. The rotating blade assembly (3) and the guide assembly (4) are both located outside the cutting blade (26). The rotating blade assembly (3) can simultaneously drive the guide assembly (4) and the cutting blade (26) to rotate.

2. The cutting blade driving module for cutting flexible sheets according to claim 1, characterized in that, The linkage transmission component includes a drive shaft (22) rotatably connected to the main support (1) via a bearing. A transmission wheel (23) is fixed on the outside of the drive shaft (22). A crank (24) is rotatably connected to the side of the transmission wheel (23) away from the axis of the drive shaft (22) via a rotating shaft.

3. The cutting blade driving module for cutting flexible sheets according to claim 2, characterized in that, The elastic connector is spring steel (25), the crank (24) is fixed to the top of the spring steel (25), and the bottom of the spring steel (25) is fixed to the cutting blade (26).

4. The cutting blade driving module for cutting flexible sheets according to claim 3, characterized in that, The spring steel (25) has a torsion angle of α with its axis as a reference, where 32° < α < 720°.

5. The cutting blade driving module for cutting flexible sheets according to claim 2, characterized in that, The output shaft of the servo motor (21) passes through the outside of the main bracket (1) and is fixedly connected to the end of the drive shaft (22). The main bracket (1) is provided with a support cylinder (27).

6. The cutting blade driving module for cutting flexible sheets according to claim 5, characterized in that, The outer side of the drive shaft (22) is rotatably connected to the inner side of the support cylinder (27) via a bearing, and the support cylinder (27) has a support hole through which the drive shaft (22) passes.

7. The cutting blade driving module for cutting flexible sheets according to claim 3, characterized in that, The guide assembly (4) includes a guide shell (41) located outside the cutter (26), and a guide block (42) and two linkage rods (43) are provided on the top of the guide shell (41); The guide shell (41) has a cutting hole between its top and bottom for the cutting blade (26) to pass through. The guide block (42) has a guide groove on its outer side for the cutting blade (26) to be inserted and slid. The top and bottom of the guide groove are open, and the inside of the guide groove is connected to the inside of the cutting hole.

8. The cutting blade driving module for cutting flexible sheets according to claim 7, characterized in that, The rotary cutter assembly (3) includes a support frame (31) and a power module (33) mounted on the main support (1). The top of the support frame (31) is rotatably connected to a driven gear (32) that can be driven by the power module (33). A limiting plate (34) is provided between the top ends of the two linkage rods (43), and two limiting blocks (35) are provided on the support frame (31). The limiting blocks (35) are L-shaped, and the side of the limiting block (35) near the limiting plate (34) extends to the top of the driven gear (32). The limiting plate (34) can be placed close to the top of the two limiting blocks (35).

9. A cutting blade driving module for cutting flexible sheets according to claim 8, characterized in that, The driven gear (32) is provided with a connecting cylinder at the bottom. The top and bottom of the connecting cylinder are open. The support frame (31) has a round hole at the top for the connecting cylinder to pass through. The outer side of the connecting cylinder is rotatably connected to the inner side of the round hole through a bearing. The power module (33) includes a small motor mounted on the main support (1). The output shaft of the small motor is equipped with a drive gear, which meshes with the driven gear (32).

10. A cutting blade driving module for cutting flexible sheets according to claim 9, characterized in that, The driven gear (32) has sliding holes for two linkage rods (43) to pass through and slide, and the linkage rods (43) are located inside the connecting cylinder; The top of both the limiting plate (34) and the driven gear (32) is provided with a movable hole for the spring steel (25) to move, and the movable hole is connected to the inside of the connecting cylinder.

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