A cutting blade holder structure

Abstract

This utility model discloses a cutting blade holder structure, including a bracket with a horizontally arranged crossbar mounted on it; a connecting part rotatably sleeved on the crossbar, extending perpendicular to the length of the crossbar and to both sides therefrom; two cutting blades symmetrically arranged at both ends of the connecting part, each cutting blade rotatably connected to one end of the connecting part; two pressing parts symmetrically arranged on both sides of the crossbar, used to press the connecting part, thereby causing the connecting part to rotate around the crossbar as an axis and drive the cutting blade on its corresponding side to move downward; and two limiting plates symmetrically arranged on both sides of the crossbar, located between the crossbar and the cutting blade on its corresponding side, each limiting plate having a protrusion, so that when the connecting part is pressed and rotates below the protrusion, the protrusion can limit the connecting part and prevent it from rotating back to its original position. This utility model controls the rotatable connecting part through the pressing parts, realizing the alternating operation of the cutting blades at both ends of the connecting part, thus improving cutting flexibility.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, and specifically to a cutting blade holder structure. Background Technology

[0002] Currently, in the processing of strip or sheet materials, fixed-length cutting is often required to obtain finished products with consistent dimensions. Existing cutting equipment mostly adopts a single-blade cutting structure, that is, a single blade cuts the material along a set direction. Traditional single-blade cutting equipment mostly uses mechanical limiting or manual control to achieve fixed-length cutting, with generally low levels of automation. Some devices require frequent manual adjustments to the blade position or pressure, resulting in low operating efficiency and difficulty in meeting the needs of continuous, high-cycle production. Utility Model Content

[0003] To overcome the above shortcomings, the purpose of this utility model is to provide a cutting blade holder structure that controls the rotatable connecting part through the pressing part, so that the two cutting blades at both ends of the connecting part work alternately, thereby improving cutting flexibility.

[0004] Technical solution: This utility model discloses a cutting blade holder structure, including:

[0005] A bracket, on which a horizontal crossbar is mounted;

[0006] A connecting part is rotatably sleeved on the crossbar, and the connecting part extends perpendicular to the length direction of the crossbar and extends to both sides thereon;

[0007] Two cutting blades are symmetrically arranged at both ends of the connecting part, and any one of the cutting blades is rotatably connected to the corresponding end of the connecting part;

[0008] Two pressing parts are symmetrically arranged on both sides of the crossbar. The pressing parts are used to press the connecting part, so that the connecting part rotates around the crossbar and drives the cutting blade on the corresponding side to move downward.

[0009] Two limiting plates are symmetrically arranged on both sides of the crossbar. Each limiting plate is located between the crossbar and the cutting blade on the corresponding side. The limiting plate also has a protrusion. When the connecting part is pressed and rotated to below the protrusion, the protrusion can limit the connecting part and prevent the connecting part from rotating back to its original position.

[0010] Furthermore, any one of the pressing parts includes an extension rod passing through the bracket and a limiting block and a pressing block installed at both ends of the extension rod. The pressing block includes a stop portion extending from the wedge block toward the connecting part. The wedge block has a first inclined surface, which slopes from the stop portion downwards and from near the connecting part toward away from the connecting part. When the pressing part presses down on the connecting part, the first inclined surface abuts against the connecting part, thereby allowing the connecting part to move along the length direction of the crossbar.

[0011] Furthermore, any one of the protrusions has a second inclined surface that slopes downward toward the connecting portion, and a third inclined surface that slopes downward and outward from the inside of the inner side of the protrusion. When the protrusion limits the connecting portion, the third inclined surface fits against the end face of the connecting portion.

[0012] Furthermore, a first spring is also sleeved on the outside of any one of the extension rods. The two ends of the first spring are respectively connected to the bracket and the pressure block. When the pressing part is not pressed by an external force, the first spring is in a stationary state, and at least part of the extension rod extends out of the bracket.

[0013] Furthermore, a second spring is also sleeved on the outside of the crossbar, with the two ends of the second spring abutting against the bracket and the connecting part respectively, and the second spring is always in a non-extended state.

[0014] Furthermore, the inner side of the bracket also has a groove for accommodating the vertical movement of the cutting blade.

[0015] Furthermore, the cutting blade also includes a guide rod that passes through and is rotatably connected to the connection portion along its width direction. The length of the guide rod is greater than the width of the connection portion. The end of the connection portion has a connection hole through which the guide rod can pass. The connection hole has a length, so that the guide rod can move within the connection hole along its length direction.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) This utility model sets up a rotatable connecting part, with two identical cutting blades connected to both ends of the connecting part. This allows the connecting part to rotate around the crossbar as the axis of rotation, enabling the two cutting blades to switch cutting. In addition, with the pressing parts located on both sides, when either side is pressed, the connecting part can rotate around the crossbar, driving the corresponding cutting blade to move downward to complete the cutting. This achieves alternating cutting with two cutting blades, which not only makes the cutting direction more flexible, but also significantly improves the cutting efficiency and applicability, reduces the time of repeated operation of a single blade, and makes the overall operation more convenient and faster.

[0018] (2) A first spring is sleeved on the outside of the pressing part. When the pressing part is released, it can automatically rebound and reset. At the same time, there are symmetrical protrusions on both sides of the limiting plate. After the connecting part rotates to a preset angle under the action of the pressing part, the connecting part can form an effective mechanical limit with the protrusions to prevent excessive rotation or jamming.

[0019] (3) The cutting blade is rotatably connected to the connecting part through the guide rod, and the length of the guide rod is greater than the width of the connecting part, so that the connecting part can move along the direction of the guide rod during the cutting process. At the same time, the second spring set outside the crossbar can provide thrust when the connecting part moves along the length direction of the crossbar, so that the connecting part and the protrusion can fit together and fix the cutting blade to prevent it from resetting when not pressing. Attached Figure Description

[0020] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances. In the drawings:

[0021] Figure 1 This is a schematic diagram of the internal structure of the cutting blade holder described in this utility model;

[0022] Figure 2 This is a schematic diagram of the bracket described in this utility model;

[0023] Figure 3 This is a schematic diagram of the pressing part and the limiting plate described in this utility model.

[0024] In the diagram: 1. Bracket; 11. Crossbar; 12. Second spring; 13. Knife groove; 2. Connecting part; 21. Connecting hole; 3. Cutting knife; 31. Guide rod; 4. Pressing part; 41. Extension rod; 411. First spring; 42. Limiting block; 43. Pressing block; 431. Wedge block; 432. First inclined surface; 433. Stop; 5. Limiting plate; 51. Protrusion; 511. Second inclined surface; 512. Third inclined surface. Detailed Implementation

[0025] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The implementation methods of this utility model will now be described based on its overall structure.

[0027] like Figures 1 to 3 As shown, this utility model discloses a cutting blade holder structure, including:

[0028] Support 1, on which a horizontally arranged crossbar 11 is installed;

[0029] Connecting part 2, which is rotatably sleeved on the crossbar 11, is perpendicular to the length direction of the crossbar 11 and extends to both sides thereto;

[0030] Two cutting blades 3 are symmetrically arranged at both ends of the connecting part 2, and any one of the cutting blades 3 is rotatably connected to the corresponding end of the connecting part 2;

[0031] Two pressing parts 4 are symmetrically arranged on both sides of the crossbar 11. The pressing parts 4 are used to press the connecting part 2, so that the connecting part 2 rotates around the crossbar 11 and drives the cutting blade 3 on the corresponding side to move downward.

[0032] Two limiting plates 5 are symmetrically arranged on both sides of the crossbar 11. Each limiting plate 5 is located between the crossbar 11 and the cutting blade 3 on the corresponding side. The limiting plate 5 also has a protrusion 51. When the connecting part 2 is pressed and rotated to below the protrusion 51, the protrusion 51 can limit the connecting part 2 and prevent the connecting part 2 from rotating back to its original position.

[0033] With the above structure, the bracket 1 provides overall support for the cutting blade holder. A horizontally arranged crossbar 11 is installed on the bracket 1, serving as a rotation axis and providing a fulcrum for the connecting part 2. The connecting part 2 is rotatably sleeved on the crossbar 11, extending symmetrically to both sides of the crossbar 11 along a length perpendicular to it, allowing it to rotate about the crossbar 11 as a rotation axis, thereby driving the cutting blades 3 on both sides to move up and down. Cutting blades 3 are rotatably connected to both ends of the connecting part 2, with each cutting blade 3 connected to the corresponding end of the connecting part 2. When the connecting part 2 rotates, the cutting blade 3 can swing around the connection point, achieving the cutting operation on the material being cut.

[0034] Furthermore, a pressing part 4 is symmetrically provided on each side of the crossbar 11. The pressing part 4 is located on both sides of the connecting part 2. When pressing the pressing part 4 on either side, the connecting part 2 rotates about the crossbar 11 as the rotation axis, causing the cutting blade 3 on the corresponding side to move downward, thereby cutting the material.

[0035] A limiting plate 5 is symmetrically arranged on both sides of the crossbar 11. Each limiting plate 5 is located between the crossbar 11 and the corresponding cutting blade 3, and the limiting plate 5 has a protrusion 51. When the connecting part 2 is pressed down and rotates to a certain angle, the connecting part 2 rotates to below the corresponding protrusion 51. When the connecting part 2 rotates back to its original position under inertia, the protrusion 51 abuts against the connecting part 2 and limits it, preventing the connecting part 2 from rotating back to its original position. Until the pressing part 4 on the other side presses the connecting part 2, the pressing part 4 passes over the protrusion 51, returns to its initial position, and is ready for the next operation. This utility model realizes the cutting action of the cutting blade 3 by driving the connecting part 2 to rotate through the pressing part 4, and effectively locks it through the protrusion 51 of the limiting plate 5, thus achieving the effects of symmetrical arrangement, simple operation, stable cutting, and safety and reliability in structure.

[0036] Each pressing part 4 includes an extension rod 41 passing through the bracket 1, and limiting blocks 42 and pressing blocks 43 installed at both ends of the extension rod 41. The pressing block 43 includes a wedge-shaped block 431 and a stop 433 extending from the wedge-shaped block 431 toward the connecting part 2. The wedge-shaped block 431 is provided with a first inclined surface 432, which starts from the stop 433 and slopes downward from top to bottom and from near the connecting part 2 toward away from the connecting part 2. When the pressing part 4 presses down on the connecting part 2, the first inclined surface 432 abuts against the surface of the connecting part 2. By the force generated by the contact with the first inclined surface 432, the connecting part 2 can move along the length direction of the crossbar 11. Then, the stop 433 continues to exert a downward force on the connecting part 2, causing the connecting part 2 to continue to rotate. Furthermore, when the pressing part 4 is pressed down and reaches the maximum pressing distance, the limiting block 42 at the end of the extension rod 41 contacts the bracket 1 and prevents the pressing part 4 from moving further downward, thereby also limiting the pressing part 4. Through the above structure, while the pressing part 4 generates downward pressure, the contact between the first inclined surface 432 and the connecting part 2 will form a lateral component force, thereby realizing the translational movement of the connecting part 2 along the direction of the crossbar 11 while rotating, and thus the connecting part 2 can rotate to below the protrusion 51 to form a limit.

[0037] Specifically, any protrusion 51 of the limiting plate 5 has a second inclined surface 511 that slopes downward toward the connecting part 2, and a third inclined surface 512 that slopes downward and outward from the inside of the inner side of the protrusion 51. When the connecting part 2 is pressed and rotated to the limiting position, the third inclined surface 512 fits against the end face of the connecting part 2, thereby achieving a stable limiting effect. With the setting of the second inclined surface 511, when the pressing part 4 presses down on the connecting part 2, the first inclined surface 432 and the second inclined surface 511 jointly abut against the connecting part 2, so that when one side of the connecting part 2 is pressed down, the connecting part 2 moves along the length direction of the crossbar 11 under the combined action of the first inclined surface 432 and the second inclined surface 511 until the connecting part 2 is continuously pushed to the end of the second inclined surface 511 of the protrusion 51, and then the pressing part 4 continues to press so that the connecting part 2 can bypass the protrusion 51 and smoothly slide into the limiting position of the protrusion 51, finally forming a locked state.

[0038] Correspondingly, when it is necessary to release the locking state on this side, the pressing part 4 on the other side presses down on the connecting part 2. Since the first inclined surface 432 of the pressing part 4 contacts the connecting part 2 first, the connecting part 2 can be pushed to move along the length direction of the crossbar 11 under the action of the first inclined surface 432 until the connecting part 2 passes the protrusion 51, and the locking is released. Then, the stop part 433 of the pressing part 4 continues to press the connecting part 2, causing the connecting part 2 to continue to rotate, and repeating the above operation, thereby realizing the alternating cutting of the cutting blades 3 at both ends of the connecting part 2.

[0039] Preferably, a first spring 411 is also sleeved on the outside of any one of the extension rods 41, with both ends of the first spring 411 connected to the bracket 1 and the pressure block 43, respectively. When the pressing part 4 is not pressed by external force, the first spring 411 is in a static state, and at least part of the extension rod 41 extends out of the bracket 1. With the above structure, the first spring 411 is stretched when the pressing part 4 is subjected to external force, and can store elastic potential energy. When the external force is released, the spring automatically resets, driving the pressure block 43 and the extension rod 41 back to the initial position, thereby automatically resetting the pressing part 4. The above structure effectively simplifies the operator's operation, avoids the tedious action of manually lifting the pressing part 4 after each cut by the cutting blade 3, and improves work efficiency.

[0040] Furthermore, a second spring 12 is also fitted onto the outside of the crossbar 11. The two ends of the second spring 12 abut against the bracket 1 and the connecting part 2, respectively, and the second spring 12 is always in a non-extended state. After assembly, the second spring 12 is in a natural or slightly compressed state, which can apply a continuous elastic force to the connecting part 2, thereby ensuring that the connecting part 2 maintains a stable initial position when not subjected to external force. Since the second spring 12 is always in a non-extended state, its elastic force always acts between the connecting part 2 and the bracket 1. When the pressing part 4 presses down on one side of the connecting part 2 and passes around the protrusion 51, the connecting part 2 moves forward along the length direction of the crossbar 11 and compresses the second spring 12. After the connecting part 2 passes the protrusion 51, the connecting part 2 loses the obstructing support force, and the elastic force of the second spring 12 pushes the connecting part 2 to move backward along the length direction of the crossbar 11, so that the end face of the connecting part 2 fits against the third inclined surface 512, thereby forming a locking structure.

[0041] The inner side of the bracket 1 also has a groove 13 for accommodating the vertical movement of the cutting blade 3. The groove 13 is set along the movement direction of the cutting blade 3, and its depth and width are adapted to the shape and stroke of the cutting blade 3, providing movement space for the cutting blade 3 during the cutting process. When the cutting blade 3 moves downward under the drive of the connecting part 2, the cutting blade 3 completes the cutting of the material along the direction of the groove 13 without interfering with the bracket 1; when the cutting blade 3 returns to its original position, it returns along the groove 13 to the initial position. The groove 13 not only ensures the smoothness and accuracy of the cutting action, but also plays a guiding and limiting role during the cutting process, making the movement trajectory of the cutting blade 3 more stable and preventing it from swaying or deviating due to force deviation.

[0042] The cutting blade 3 also includes a guide rod 31 that passes through and is rotatably connected to the connecting part 2 along its width direction. The length of the guide rod 31 is greater than the width of the connecting part 2, so that when the connecting part 2 is pushed to move along the length direction of the crossbar 11, the connecting part 2 also moves relative to the length direction of the guide rod 31. Therefore, the cutting blade 3 does not move with the horizontal movement of the connecting part 2. The end of the connecting part 2 is also provided with a connecting hole 21 through which the guide rod 31 can pass. The connecting hole 21 has a length that allows the guide rod 31 to move along its own length direction within the connecting hole 21, thereby preventing the cutting blade 3 connected to its end from being squeezed and rubbed against the inner wall of the blade groove 13 when the connecting part 2 is raised or lowered.

[0043] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A cutting blade holder structure, characterized in that, include: A bracket, on which a horizontal crossbar is mounted; A connecting part is rotatably sleeved on the crossbar, and the connecting part extends perpendicular to the length direction of the crossbar and extends to both sides thereon; Two cutting blades are symmetrically arranged at both ends of the connecting part, and any one of the cutting blades is rotatably connected to the corresponding end of the connecting part; Two pressing parts are symmetrically arranged on both sides of the crossbar. The pressing parts are used to press the connecting part, so that the connecting part rotates around the crossbar and drives the cutting blade on the corresponding side to move downward. Two limiting plates are symmetrically arranged on both sides of the crossbar. Each limiting plate is located between the crossbar and the cutting blade on the corresponding side. The limiting plate also has a protrusion. When the connecting part is pressed and rotated to below the protrusion, the protrusion can limit the connecting part and prevent the connecting part from rotating back to its original position.

2. The cutting blade holder structure according to claim 1, characterized in that, Each of the pressing parts includes an extension rod passing through the bracket and a limiting block and a pressing block installed at both ends of the extension rod. The pressing block includes a stop portion of a wedge-shaped block extending from the wedge block toward the connecting part. The wedge block has a first inclined surface, which slopes from the stop portion downwards and from near the connecting part toward away from the connecting part. When the pressing part presses down on the connecting part, the first inclined surface abuts against the connecting part, thereby allowing the connecting part to move along the length direction of the crossbar.

3. The cutting blade holder structure according to claim 2, characterized in that, Each of the protrusions has a second inclined surface that slopes downward toward the connecting portion, and a third inclined surface that slopes downward and outward from the inside of the inner side of the protrusion. When the protrusion limits the connecting portion, the third inclined surface fits against the end face of the connecting portion.

4. The cutting blade holder structure according to claim 2, characterized in that, Each of the extension rods is further fitted with a first spring, the two ends of the first spring being connected to the bracket and the pressure block respectively. When the pressing part is not pressed by an external force, the first spring is in a stationary state, and at least part of the extension rod extends out of the bracket.

5. The cutting blade holder structure according to claim 1, characterized in that, A second spring is also sleeved on the outside of the crossbar. The two ends of the second spring abut against the bracket and the connecting part, respectively. The second spring is always in a non-extended state.

6. The cutting blade holder structure according to claim 1, characterized in that, The inner side of the bracket also has a groove for accommodating the vertical movement of the cutting blade.

7. The cutting blade holder structure according to claim 1, characterized in that, The cutting blade also includes a guide rod that passes through and is rotatably connected to the connection portion along its width direction. The length of the guide rod is greater than the width of the connection portion. The end of the connection portion has a connection hole through which the guide rod can pass. The connection hole has a length, so that the guide rod can move within the connection hole along its length direction.

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