Electric scissors

Abstract

The utility model relates to a pair of electric shears, which comprises a shell, a pair of electric shears, a pair of electric shears, a pair of electric shears and a pair of electric shears, a gear groove is formed in one side of the moving rod in the length direction of the moving rod, the lower end of the moving rod is connected with a presser foot, and the moving rod upwards penetrates through the mounting cavity and is in sliding connection with the mounting cavity; the gear is rotationally connected to a fixing shaft, the fixing shaft is fixed in the mounting cavity, the gear is in meshed connection with the gear groove, a first connecting ring is arranged on one side of the front face of the gear in a protruding mode, and one-way teeth arranged in the circumferential direction are arranged on the inner wall of the first connecting ring in a protruding mode; and the fixing disc is fixed to one end of the fixing shaft and located in the first connecting ring, and a gap is formed between the outer wall of the fixing disc and the one-way teeth. The height-adjustable presser foot has the advantages that convenience of the moving rod in use is effectively improved, the moving rod can stop at any height, and the height of the presser foot can be adjusted more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to an electric scissors. Background Art

[0002] The straight knife cutting machine is suitable for cutting cotton, wool, linen, silk, chemical fiber, leather and other materials. The machine has centralized lubrication, smooth cutting, and can cut curves with small curvature radius.

[0003] Chinese patent document CN222809766U discloses an electric shear for aviation seat cushions with a heat dissipation function. The electric shear comprises a mounting base, the bottom of which is connected to a base via a bracket. Specifically, a bracket is provided vertically on the top of the base and is parallel to the mounting base. The mounting base is provided with a guide mechanism, which is connected to a drive motor via a transmission mechanism. The drive motor drives the guide mechanism to reciprocate downwardly via the transmission mechanism. A guide base is provided in the middle of the mounting base on the side away from the control box. Two adjustment rods are vertically and movably provided in the guide base. The adjustment rods are located on either side of the blade. The top of the two adjustment rods is connected by a connecting seat and the bottom is connected by a pressure plate. The pressure plate has an arc-shaped structure on the side away from the blade. During the shearing process, to prevent deformation of the material contacted by the blade, the pressure plate can be pressed in front of the blade to flatten the material in front of the blade. A tension spring is provided on the top of at least one of the adjustment rods. The ends of the tension spring are respectively connected to the connecting seat and the guide base. In the static state, the tension spring drives the pressure plate to be placed on the base, so that the pressure plate, driven by the tension spring, always exerts pressure on the material.

[0004] When the above patent is in use, it is necessary to manually pull the connecting seat to drive the adjusting rod and the pressure plate to rise, the spring is stretched, and then the electric scissors are moved to the material to be cut. During the movement of the electric scissors, it is necessary to manually pull the connecting seat and the adjusting rod to prevent the pressure plate from falling. When the electric scissors move to the cutting position, the connecting seat and the adjusting rod are released to press the pressure plate tightly on the material to be cut. This method makes it very inconvenient to adjust the pressure plate and move the electric scissors. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an electric scissors to solve the above problems.

[0006] The technical solution of the utility model is implemented as follows: an electric scissors, including a base, a mounting frame connected to the base via a support rod, a blade provided on one side of the support rod, a body for driving the blade provided on the mounting frame, and further comprising:

[0007] A housing is provided on a mounting frame, with a mounting cavity being provided between the housing and the mounting frame;

[0008] A moving rod, wherein a gear groove is provided on one side of the moving rod along its length direction, a presser foot is connected to the lower end of the moving rod, and the moving rod passes upward through the mounting cavity for sliding connection;

[0009] A gear, the gear being rotatably connected to a fixed shaft, the fixed shaft being fixed in the mounting cavity, the gear being meshed with the gear groove, a first connecting ring being protruded on one side of the front face of the gear, and a one-way tooth being provided on the inner wall of the first connecting ring;

[0010] A fixed plate, the fixed plate is fixed to one end of the fixed shaft and is located in the first connecting ring, the outer wall of the fixed plate is not in contact with the one-way tooth, and a one-way clamping block that cooperates with the one-way tooth is movably connected to the outer wall of the fixed plate, the one-way clamping block contacts or separates with the one-way tooth through a magnetic adjustment mechanism, when the one-way clamping block contacts or separates with the one-way tooth, the gear can only rotate in one direction so that the moving rod can only move upward, and when the one-way clamping block is separated from the one-way tooth, the gear can rotate in both directions;

[0011] The reset mechanism is used to reset the gear after it rotates.

[0012] By adopting the above technical solution, when in use, the one-way clamping block is first adjusted to a position in contact with the one-way tooth by the magnetic adjustment mechanism, so that the gear can only rotate in one direction, and then the moving rod is manually pulled upward to drive the gear to rotate, the reset mechanism accumulates force, and the presser foot gradually rises. When it moves to the required height, since the gear cannot rotate in the opposite direction, it can prevent the moving rod from moving downward, and then the cutting machine is moved to the required position. When the cutting position is reached, the one-way clamping block is adjusted to a position separated from the one-way tooth by the magnetic adjustment mechanism, the lock of the gear is released, and the gear can rotate freely in both directions. Under the action of the reset mechanism, the gear is driven to reset and rotate, thereby driving the moving rod to move downward, so that the presser foot on the moving rod is pressed tightly on the material to be cut, and the material to be cut is kept pressed tightly; the convenience of the moving rod in use is effectively improved, and the moving rod can be stopped at any height, making it more convenient to adjust the height of the presser foot.

[0013] The utility model is further configured as follows: a plurality of grooves for sliding connection of a one-way card block are opened on the outer wall of the fixed disk along the circumference of its central axis; when the one-way card block slides in the groove, it approaches or moves away from the central axis of the fixed disk, and the top end of the one-way card block extends or retracts into the groove through a magnetic adjustment mechanism.

[0014] By adopting the above technical solution, the connection stability between the one-way clamping block and the first connecting ring can be effectively improved.

[0015] The utility model is further configured as follows: the magnetic adjustment mechanism includes:

[0016] a pull rod, wherein a first magnet having a long strip shape is provided on one end of the pull rod, the central axis of the first magnet coincides with the center of the pull rod, the two magnetic poles of the first magnet are respectively located at the two ends of the first magnet, and the other end of the pull rod extends outward through the housing;

[0017] a first sliding hole, the first sliding hole being opened at the center of the fixed disk, and the end of the pull rod with the first magnet being slidably connected to the first sliding hole;

[0018] A second magnet, the second magnet being fixed to the bottom of the one-way clamping block and disposed close to the first magnet, with two magnetic poles of the second magnet being located at the upper and lower sides of the second magnet respectively;

[0019] In which, the pull rod has a first fixed point and a second fixed point when moving in the first sliding hole; when the pull rod is located at the first fixed point, one end of the first magnet is close to the center of the fixed disk and repel each other with the lower side of the second magnet; when the pull rod is located at the second fixed point, the other end of the first magnet is close to the center of the fixed disk and attracts each other with the lower side of the second magnet.

[0020] By adopting the above technical solution, when the pull rod is located at the first fixed point, one end of the first magnet is close to the center of the fixed disk and repel each other with the lower side of the second magnet, thereby pushing the one-way card block out of the groove, so that the upper end of the one-way card block is connected to the one-way tooth accordingly, and the gear can only rotate in one direction at this time; when the pull rod is located at the second fixed point, the other end of the first magnet is close to the center of the fixed disk and attracts each other with the lower side of the second magnet, thereby sucking the one-way card block into the groove, so that the upper end of the one-way card block is separated from the one-way tooth, and the gear can rotate in both directions at this time; the adjustment is very convenient and can be achieved by simply pulling the pull rod.

[0021] The utility model is further configured as follows: two limiting grooves are provided on the outer wall of the pull rod, and a protrusion matching the limiting grooves is protruded from the through hole on the outer shell for the pull rod to pass through. When the protrusions are respectively connected to the two limiting grooves, the pull rod is located at the first fixed point or the second fixed point.

[0022] By adopting the above technical solution, the pull rod can effectively stop at the first fixed point or the second fixed point when sliding, making the control of the second magnet and the one-way clamping block more stable and efficient.

[0023] The utility model is further configured as follows: the reset mechanism includes:

[0024] a second connecting ring, the second connecting ring being protrudingly provided on one side of the back surface of the gear;

[0025] a coil spring, the coil spring being arranged on the inner side of the second connecting ring, one end of the coil spring being fixed to the fixed shaft, and the other end being fixed to the second connecting ring;

[0026] Wherein, the outer walls of the second connecting ring and the fixed shaft are both provided with insertion holes for the two ends of the coil spring to be inserted and fixed.

[0027] By adopting the above technical solution, the coil spring has a force on the gear when it is in the initial state, so that the gear will always give the moving rod a downward pressure, so that when the presser foot is in the lowest position, it will be pressed tightly against the base; then when the moving rod moves upward, it will drive the gear to rotate to store force in the coil spring. Therefore, when the presser foot reaches the specified height, the coil spring will release energy to drive the gear to rotate, thereby giving the moving rod a downward pressure to press the presser foot against the material to be cut, and the downward pressure is always maintained during the movement and cutting process of the cutting machine.

[0028] The utility model is further configured as follows: the upper end of the moving rod passes through the shell and protrudes to be provided with an arc-shaped pulling block.

[0029] By adopting the above technical solution, when pulling the movable rod upward, it is more convenient to pull the movable rod through the pulling block.

[0030] The utility model is further configured as follows: a second sliding hole is opened in the lower end of the moving rod, a sliding rod is provided on the presser foot, the upper end of the sliding rod extends into the second sliding hole, a spring is provided between the upper end of the sliding rod and the top of the second sliding hole, the opening diameter of the lower end of the second sliding hole matches the outer diameter of the sliding rod, and a boss is provided on the top of the sliding rod to prevent the sliding rod from sliding out of the second sliding hole, and the outer diameter of the boss is larger than the outer diameter of the sliding rod.

[0031] By adopting the above technical solution, a certain elasticity can be created between the presser foot and the moving rod, so that the presser foot is pressed tightly on the material to be cut, and the pressed state can be maintained even during the cutting movement, so that the pressing effect on the material to be cut is better; when the moving rod moves downward, damage to the presser foot can also be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 This is a structural stereogram of a specific embodiment of the utility model;

[0034] Figure 2 for Figure 1 Schematic diagram of the structure of A;

[0035] Figure 3 This is a front view of the structure of a specific embodiment of the utility model;

[0036] Figure 4 for Figure 3 Schematic diagram of the structure of B;

[0037] Figure 5 This is a structural diagram of the one-way clamping block and the one-way tooth in the present invention when they are separated;

[0038] Figure 6 This is a structural sectional view of a side view of a specific embodiment of the utility model;

[0039] Figure 7 for Figure 6 Schematic diagram of the structure of C;

[0040] Figure 8 This is a structural diagram of a specific embodiment of the present invention when the coil spring is inside the gear;

[0041] Figure 9 for Figure 6 Schematic diagram of the structure of D in the figure. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figures 1-9 As shown, the utility model discloses an electric scissors, comprising a base 1, a mounting frame 3 connected to the base 1 via a support rod 2, a blade 4 being provided on one side of the support rod 2, a body 40 for driving the blade 4 being provided on the mounting frame 3, and further comprising:

[0044] A housing 30 is provided on the mounting frame 3, and a mounting cavity 300 is provided between the housing 30 and the mounting frame 3;

[0045] A movable rod 5, one side of which is provided with a gear groove 50 arranged along its length direction, a presser foot 6 is connected to the lower end of the movable rod 5, and the movable rod 5 is upwardly passed through the mounting cavity 300 for sliding connection;

[0046] Gear 7, said gear 7 is rotatably connected to a fixed shaft 8, said fixed shaft 8 being fixed in the mounting cavity 300, said gear 7 being meshed with a gear groove 50, and a first connecting ring 70 being protruded from one side of the front face of said gear 7, and a one-way tooth 71 being provided on the inner wall of said first connecting ring 70;

[0047] A fixed plate 9 is fixed to one end of the fixed shaft 8 and is located in the first connecting ring 70. The outer wall of the fixed plate 9 does not contact the one-way teeth 71. A one-way block 90 that cooperates with the one-way teeth 71 is movably connected to the outer wall of the fixed plate 9. The one-way block 90 contacts or separates with the one-way teeth 71 through a magnetic adjustment mechanism. When the one-way block 90 contacts or separates with the one-way teeth 71, the gear 7 can only rotate in one direction, so that the movable rod 5 can only move upward. When the one-way block 90 separates from the one-way teeth 71, the gear 7 can rotate in both directions.

[0048] The reset mechanism is used to reset the gear 7 after it rotates.

[0049] When the cutting machine reaches the desired height, the one-way block 90 is adjusted to a position separated from the one-way tooth 71 by the magnetic adjusting mechanism, thereby releasing the lock of the gear 7 and allowing the gear 7 to rotate freely in both directions. Under the action of the reset mechanism, the gear 7 is driven to reset and rotate, thereby driving the moving rod 5 to move downward, so that the presser foot 6 on the moving rod 5 is pressed tightly on the material to be cut, and the material to be cut is kept pressed tightly; the convenience of the moving rod 5 in use is effectively improved, and the moving rod 5 can be stopped at any height, making it more convenient to adjust the height of the presser foot 6.

[0050] In an embodiment of the present utility model, a plurality of grooves 91 for sliding connection of the one-way block 90 are provided on the outer wall of the fixed disk 9 along the circumference of its central axis. When the one-way block 90 slides in the groove 91, it approaches or moves away from the central axis of the fixed disk 9, and the top end of the one-way block 90 is extended or retracted into the groove 91 through a magnetic adjustment mechanism.

[0051] By adopting the above technical solution, the connection stability between the one-way clamping block 90 and the first connecting ring 70 can be effectively improved.

[0052] In an embodiment of the present utility model, the magnetic adjustment mechanism includes:

[0053] A pull rod 10, wherein a first magnet 100 is provided on one end of the pull rod 10, wherein the central axis of the first magnet 100 coincides with the center of the pull rod 10, and the two magnetic poles of the first magnet 100 are respectively located at the two ends of the first magnet 100, and the other end of the pull rod 10 extends outward through the housing 30;

[0054] A first sliding hole 11 is provided at the center of the fixed plate 9, and one end of the pull rod 10 with the first magnet 100 is slidably connected to the first sliding hole 11;

[0055] The second magnet 12 is fixed to the bottom of the one-way block 90 and is disposed close to the first magnet 100. The two magnetic poles of the second magnet 12 are respectively located at the upper and lower sides of the second magnet 12;

[0056] In which, the pull rod 10 has a first fixed point and a second fixed point when moving in the first sliding hole 11; when the pull rod 10 is located at the first fixed point, one end of the first magnet 100 is close to the center of the fixed disk 9, and repel each other with the lower side of the second magnet 12; when the pull rod 10 is located at the second fixed point, the other end of the first magnet 100 is close to the center of the fixed disk 9, and attracts each other with the lower side of the second magnet 12.

[0057] By adopting the above technical solution, when the pull rod 10 is located at the first fixed point, one end of the first magnet 100 is close to the center of the fixed disk 9 and repels each other with the lower side of the second magnet 12, thereby pushing the one-way block 90 out of the groove 91, so that the upper end of the one-way block 90 is connected to the one-way tooth 71 accordingly, and at this time the gear 7 can only rotate in one direction; when the pull rod 10 is located at the second fixed point, the other end of the first magnet 100 is close to the center of the fixed disk 9 and attracts each other with the lower side of the second magnet 12, thereby sucking the one-way block 90 into the groove 91, so that the upper end of the one-way block 90 is separated from the one-way tooth 71, and at this time the gear 7 can rotate in both directions; the adjustment is very convenient, and it can be achieved by simply pulling the pull rod 10.

[0058] In an embodiment of the present utility model, two limiting grooves 101 are provided on the outer wall of the pull rod 10, and a protrusion 102 matching the limiting groove 101 is protruded from the through hole on the outer shell 30 for the pull rod 10 to pass through. When the protrusion 102 is respectively connected to the two limiting grooves 101, the pull rod 10 is located at the first fixed point or the second fixed point.

[0059] By adopting the above technical solution, the pull rod 10 can effectively stop at the first fixed point or the second fixed point when sliding, making the control of the second magnet 12 and the one-way block 90 more stable and efficient.

[0060] In an embodiment of the present utility model, the reset mechanism includes:

[0061] a second connecting ring 72 , the second connecting ring 72 being protrudingly provided on one side of the back surface of the gear 7 ;

[0062] A coil spring 73 , which is disposed on the inner side of the second connecting ring 72 , with one end of the coil spring 73 fixed to the fixed shaft 8 and the other end fixed to the second connecting ring 72 ;

[0063] The outer walls of the second connecting ring 72 and the fixed shaft 8 are both provided with insertion holes 74 for the two ends of the coil spring 73 to be inserted and fixed.

[0064] By adopting the above technical solution, the coil spring 73 has a force on the gear 7 when it is in the initial state, so that the gear 7 will always give the moving rod 5 a downward pressure, so that when the presser foot 6 is in the lowest position, it will also be pressed against the base 1; then when the moving rod 5 moves upward, it will drive the gear 7 to rotate so that the coil spring 73 accumulates force. Therefore, when the presser foot 6 reaches the specified height, the coil spring 73 will release energy to drive the gear 7 to rotate, thereby giving the moving rod 5 a downward pressure to press the presser foot 6 against the material to be cut, and the downward pressure is always maintained during the movement and cutting process of the cutting machine.

[0065] In the embodiment of the present invention, the upper end of the moving rod 5 passes through the housing 30 and is protruded to form an arc-shaped pull block 53 .

[0066] By adopting the above technical solution, when the movable rod 5 is pulled upward, it is more convenient to pull the movable rod 5 through the pulling block 53 .

[0067] In an embodiment of the present utility model, a second sliding hole 51 is opened in the lower end of the movable rod 5, and a sliding rod 60 is provided on the presser foot 6. The upper end of the sliding rod 60 extends into the second sliding hole 51. A spring 52 is provided between the upper end of the sliding rod 60 and the top of the second sliding hole 51. The opening diameter of the lower end of the second sliding hole 51 matches the outer diameter of the sliding rod 60. A boss 61 is provided on the top of the sliding rod 60 to prevent the sliding rod 60 from sliding out of the second sliding hole 51. The outer diameter of the boss 61 is larger than the outer diameter of the sliding rod 60.

[0068] By adopting the above technical solution, a certain elasticity can be created between the presser foot 6 and the movable rod 5, so that the presser foot 6 is pressed tightly on the material to be cut, and the pressed state can be maintained even during the cutting movement, so that the pressing effect on the material to be cut is better; when the movable rod 5 moves downward, damage to the presser foot 6 can also be avoided.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric scissors, comprising a base (1), a mounting frame (3) connected to the base (1) via a support rod (2), a blade (4) being provided on one side of the support rod (2), and a body (40) for driving the blade (4) being provided on the mounting frame (3), characterized in that: Also includes: A housing (30), the housing (30) being arranged on the mounting frame (3), and a mounting cavity (300) being provided between the housing (30) and the mounting frame (3); A moving rod (5), wherein a gear groove (50) is provided on one side of the moving rod (5) along its length direction, a presser foot (6) is connected to the lower end of the moving rod (5), and the moving rod (5) passes upward through the mounting cavity (300) for sliding connection; A gear (7), the gear (7) being rotatably connected to a fixed shaft (8), the fixed shaft (8) being fixed in the mounting cavity (300), the gear (7) being meshed and connected with the gear groove (50), a first connecting ring (70) being protruded on one side of the front face of the gear (7), and a one-way tooth (71) being provided on the inner wall of the first connecting ring (70); A fixed disk (9), wherein the fixed disk (9) is fixed on one end of the fixed shaft (8) and is located in the first connecting ring (70), the outer wall of the fixed disk (9) does not contact the one-way tooth (71), and a one-way one-way block (90) that cooperates with the one-way tooth (71) is movably connected to the outer wall of the fixed disk (9), and the one-way block (90) contacts or separates from the one-way tooth (71) through a magnetic adjustment mechanism. When the one-way block (90) contacts or separates from the one-way tooth (71), the gear (7) can only rotate in one direction so that the moving rod (5) can only move upward. When the one-way block (90) separates from the one-way tooth (71), the gear (7) can rotate in both directions. A reset mechanism is used to reset the gear (7) after it rotates.

2. The electric scissors according to claim 1, characterized in that: A plurality of grooves (91) for sliding connection of the one-way clamping block (90) are provided on the outer wall of the fixed disk (9) along the circumference of the central axis thereof. When the one-way clamping block (90) slides in the groove (91), it approaches or moves away from the central axis of the fixed disk (9). The top end of the one-way clamping block (90) extends out of or retracts into the groove (91) via a magnetic adjustment mechanism.

3. The electric scissors according to claim 2, characterized in that: The magnetic adjustment mechanism comprises: A pull rod (10), wherein a first magnet (100) arranged in an elongated shape is provided at one end of the pull rod (10), the central axis of the first magnet (100) coincides with the center of the pull rod (10), the two magnetic poles of the first magnet (100) are respectively located at the two ends of the first magnet (100), and the other end of the pull rod (10) passes through the housing (30) and extends outward; A first sliding hole (11), the first sliding hole (11) is opened at the center of the fixed disk (9), and one end of the pull rod (10) with the first magnet (100) is slidably connected in the first sliding hole (11); a second magnet (12), the second magnet (12) being fixed to the bottom of the one-way clamp (90) and arranged close to the first magnet (100), the two magnetic poles of the second magnet (12) being respectively located on the upper and lower sides of the second magnet (12); The pull rod (10) has a first fixed point and a second fixed point when moving in the first sliding hole (11); when the pull rod (10) is located at the first fixed point, one end of the first magnet (100) is close to the center of the fixed disk (9) and repel each other with the lower side of the second magnet (12); when the pull rod (10) is located at the second fixed point, the other end of the first magnet (100) is close to the center of the fixed disk (9) and attracts each other with the lower side of the second magnet (12).

4. The electric scissors according to claim 3, characterized in that: Two limiting grooves (101) are provided on the outer wall of the pull rod (10), and a protrusion (102) matching the limiting grooves (101) is protruded from the through hole on the housing (30) for the pull rod (10) to pass through. When the protrusion (102) is respectively connected to the two limiting grooves (101), the pull rod (10) is located at the first fixed point or the second fixed point.

5. The electric scissors according to claim 1, characterized in that: The reset mechanism comprises: a second connecting ring (72), the second connecting ring (72) being protrudingly provided on one side of the back side of the gear (7); a coil spring (73), the coil spring (73) being arranged on the inner side of the second connecting ring (72), one end of the coil spring (73) being fixed on the fixed shaft (8), and the other end being fixed on the second connecting ring (72); Wherein, the outer walls of the second connecting ring (72) and the fixed shaft (8) are provided with insertion holes (74) for the two ends of the coil spring (73) to be inserted and fixed.

6. The electric scissors according to claim 1, characterized in that: The upper end of the moving rod (5) passes through the housing (30) and protrudes to provide an arc-shaped pull block (53).

7. The electric scissors according to claim 1, characterized in that: A second sliding hole (51) is provided in the lower end of the movable rod (5), a sliding rod (60) is provided on the presser foot (6), the upper end of the sliding rod (60) extends into the second sliding hole (51), a spring (52) is provided between the upper end of the sliding rod (60) and the top of the second sliding hole (51), the opening diameter of the lower end of the second sliding hole (51) matches the outer diameter of the sliding rod (60), and a boss (61) is provided on the top end of the sliding rod (60) to prevent the sliding rod (60) from sliding out of the second sliding hole (51), and the outer diameter of the boss (61) is larger than the outer diameter of the sliding rod (60).

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