Reset transmission structure of spring machine steel wire shearing mechanism

Abstract

The utility model discloses a reset transmission structure of a steel wire shearing mechanism of a spring machine, relates to the technical field of spring production equipment, and aims to solve the problems that an existing shearing reset mechanism is limited by the size of an eccentric wheel, the upward jacking shearing angle is small, the shearing force is small, the effect is poor when spring steel wires with large sizes are cut, and the cutting efficiency is poor. And secondary shearing needs to be carried out, and secondary cutting can be carried out again only when an eccentric wheel is reset, so that the problem that operation is inconvenient is solved. Comprising a movable end shearing part, and a fixed end shearing part is installed on one side of the movable end shearing part; the support is installed at the rear end of the movable end shearing part, a lead screw motor is installed at the upper end of the support, a ball screw is installed at one end of the lead screw motor, a lead screw sliding block is installed on the outer wall of the ball screw, and a controller is detachably installed on the side wall of the support through a screw.

Description

Technical Field

[0001] The utility model relates to the technical field of spring production equipment, in particular to a reset transmission structure of a steel wire shearing mechanism of a spring machine. Background Art

[0002] A spring machine is a processing machine that produces springs and can bend spring wire into shape. After the spring wire is bent into a certain shape, it needs to be cut. Currently, in response to the above situation, some processing units will install a shearing mechanism on the spring machine to shear spring steel with a larger diameter. Ordinary shearing mechanisms include fixed shears and movable shears. The movable shears rotate around the fixed shears, and both are sheared in a manner similar to scissors. The shearing mechanism also includes a drive motor. An eccentric shearing wheel is fixed on the output shaft of the drive motor. A tension spring pulls one end of the movable shear to always rest against the eccentric shearing wheel. The drive motor drives the movable shear to swing up and down through the eccentric wheel to achieve the shearing function;

[0003] For example, the public document: CN213887988U, named "A steel wire shearing reset mechanism for a spring machine" includes a shearing slide seat, a fixed shear and a movable shear. The shearing slide seat is also provided with a driving motor for driving the movable shear to reciprocate and swing around the fixed shear. An eccentric shearing wheel is fixedly provided on the output shaft of the driving motor. The movable shear is provided with a supporting wheel at one end close to the eccentric shearing wheel. The movable shear is also provided with a reset wheel so that the supporting wheel always rests on the eccentric shearing wheel. The advantage of the utility model is that by adjusting the position of the reset rod, the reset wheel always rests on the outer wheel surface of the eccentric shearing wheel, thereby ensuring the stable shearing of the movable shear and the continuous shearing work.

[0004] The above-mentioned existing shearing and resetting mechanism is limited by the size of the eccentric wheel. The upward shearing angle is small and the shearing force is small. The cutting effect is poor when it is used to cut some larger spring steel wires, and secondary shearing is required. The secondary cutting requires the eccentric wheel to be reset before it can be carried out again, which makes the operation inconvenient. The shearing port does not have a knife changing structure and cannot be adjusted according to the thickness of the steel wire. Therefore, it does not meet the existing needs. We propose a reset transmission structure for the steel wire shearing mechanism of a spring machine. Utility Model Content

[0005] The utility model aims to provide a reset transmission structure of a spring machine steel wire shearing mechanism, so as to solve the problem that the existing shear reset mechanism proposed in the above background technology is limited by the size of the eccentric wheel, the upward shearing angle is small, the shearing force is small, and the cutting effect is poor when it is used for cutting some large spring steel wires, and secondary shearing is required. The secondary cutting requires the eccentric wheel to be reset before it can be carried out again, which leads to inconvenient operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reset transmission structure of a spring machine steel wire shearing mechanism, comprising: a movable end shearing piece, a fixed end shearing piece is installed on one side of the movable end shearing piece;

[0007] Also includes:

[0008] A bracket is installed at the rear end of the movable end shearing piece, a screw motor is installed at the upper end of the bracket, a ball screw is installed at one end of the screw motor, a screw slider is installed on the outer wall of the ball screw, a controller is detachably installed on the side wall of the bracket by screws, and the output end of the controller is electrically connected to the control end of the screw motor, a plurality of displacement sensors arranged at intervals in the transverse direction are arranged on the outer wall of the front end face of the bracket, and the output end of the displacement sensor is electrically connected to the input end of the controller.

[0009] Preferably, a first rotating shaft is installed on the side wall of the movable end shearing piece, and one end of the first rotating shaft extends to the fixed end shearing piece. An angle sensor is arranged outside the first rotating shaft, and the output end of the angle sensor is electrically connected to the input end of the controller.

[0010] Preferably, the front ends of the movable end shearing piece and the fixed end shearing piece are both provided with shearing ports, a driving motor is installed on the side wall above the shearing port, and the control end of the driving motor is electrically connected to the output end of the controller, a transmission belt is provided at the output end of the driving motor, a second rotating shaft is provided at one end of the transmission belt, and the output end of the driving motor is transmission-connected to the second rotating shaft via the transmission belt.

[0011] Preferably, a knife holder is arranged on the outer wall of the second rotating shaft, and a plurality of shearing blades are arranged in an annular shape on the outer wall of the knife holder.

[0012] Preferably, a mounting piece is mounted on the side wall of the fixed-end shearing piece by means of screws, a side sliding block is mounted on the side wall of the mounting piece by means of screws, and a side sliding frame is provided at the middle position of the side sliding block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can make the spring machine steel wire shearing mechanism have a fast reset transmission structure through the arrangement of a bracket, a screw motor, a ball screw, a screw slider, a controller, a movable end shearing piece, a displacement sensor, a first rotating shaft, and an angle sensor. Compared with the eccentric wheel rotation reset mode, the reset structure can firstly adjust the shearing angle according to the demand. Secondly, compared with the eccentric wheel reset, the reset structure resets faster. For steel wires of different volumes and thicknesses, different angles can be adjusted in advance, and the shearing force is stronger.

[0015] Specifically, the screw slider is driven to move up and down by the screw motor and the ball screw. During the movement of the screw slider, the movable end shearing piece at the front end is driven to rotate at the first rotating shaft, and its shearing angle is changed by the rotation. The existing shearing reset mechanism is limited by the size of the eccentric wheel, and its upward shearing angle is small, and the shearing force is small. The cutting effect is poor for some larger spring steel wires, and secondary shearing is required. The secondary cutting requires resetting the eccentric wheel before it can be carried out again, which leads to inconvenient operation.

[0016] 2. The driving motor is used to drive the transmission belt and the second rotating shaft to rotate. The knife holder is flipped by rotation to change the positions of different shear blades. Before cutting the steel wire, shear blades of different sizes can be selected according to the size, volume and thickness of the steel wire. Compared with the fixed shear port, the shear port can quickly adjust and replace the shear blade, thereby improving the shearing effect and reducing the problem of inability to cut thoroughly in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the local structure of the shear port of the utility model;

[0019] Figure 3 It is the principle diagram of the utility model;

[0020] In the figure: 1. movable end shearing piece; 2. fixed end shearing piece; 3. bracket; 4. screw motor; 5. ball screw; 6. screw slider; 7. controller; 8. displacement sensor; 9. angle sensor; 10. first rotating shaft; 11. mounting piece; 12. side slider; 13. side slide frame; 14. shearing port; 15. driving motor; 16. transmission belt; 17. second rotating shaft; 18. tool holder; 19. shearing blade. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-3 , the utility model provides an embodiment: a reset transmission structure of a spring machine steel wire shearing mechanism, comprising: a movable end shearing piece 1, a fixed end shearing piece 2 is installed on one side of the movable end shearing piece 1;

[0023] Also includes:

[0024] A bracket 3 is mounted on the rear end of the movable end shearing member 1, a lead screw motor 4 is mounted on the upper end of the bracket 3, a ball screw 5 is mounted on one end of the lead screw motor 4, a lead screw slider 6 is mounted on the outer wall of the ball screw 5, a controller 7 is detachably mounted on the side wall of the bracket 3 by screws, and the output end of the controller 7 is electrically connected to the control end of the lead screw motor 4, a plurality of displacement sensors 8 arranged at intervals in the transverse direction are arranged on the outer wall of the front end face of the bracket 3, and the output end of the displacement sensor 8 is electrically connected to the input end of the controller 7;

[0025] A first rotating shaft 10 is installed on the side wall of the movable end shearing piece 1, and one end of the first rotating shaft 10 extends to the fixed end shearing piece 2. An angle sensor 9 is arranged outside the first rotating shaft 10, and the output end of the angle sensor 9 is electrically connected to the input end of the controller 7.

[0026] Through the arrangement of the bracket 3, the screw motor 4, the ball screw 5, the screw slider 6, the controller 7, the movable end shearing piece 1, the displacement sensor 8, the first rotating shaft 10, and the angle sensor 9, the spring machine steel wire shearing mechanism can have a fast reset transmission structure. Compared with the eccentric wheel rotation reset mode, the reset structure can firstly adjust the shearing angle according to the demand. Secondly, compared with the eccentric wheel reset, the reset structure resets faster. For steel wires of different volumes and thicknesses, different angles can be adjusted in advance, and the shearing force is stronger.

[0027] Specifically, the screw motor 4 and the ball screw 5 drive the screw slider 6 to move up and down, and during the movement of the screw slider 6, the front movable end shearing member 1 is driven to rotate at the first rotating shaft 10, and the shearing angle thereof is changed by the rotation;

[0028] In the initial state, the lead screw slider 6 drives the movable end shearing piece 1 to make its angle flush with the fixed end shearing piece 2, and the steel wire is placed in the front end shearing port 14, and the lead screw slider 6 drives the movable end shearing piece 1 to move upward, so that the angle of the movable end shearing piece 1 is downward, and the steel wire is sheared, and then the lead screw slider 6 moves to the initial position and resets;

[0029] Among them, the displacement sensor 8 is used to detect the position of the screw slider 6 and feedback the signal to the controller 7, so that the controller 7 obtains the position information of the screw slider 6. When the angle changes, the angle sensor 9 also feedbacks the angle change signal to the controller 7, so that the controller 7 obtains the angle change information. The above sensors can facilitate users to adjust to the desired position and angle, obtain accurate position and angle information, and reset the position and angle to the initial state after the operation is completed, which is convenient for use.

[0030] See also Figure 2The front ends of the movable end shearing piece 1 and the fixed end shearing piece 2 are both provided with a shearing port 14, a driving motor 15 is installed on the side wall above the shearing port 14, and the control end of the driving motor 15 is electrically connected to the output end of the controller 7, a transmission belt 16 is provided at the output end of the driving motor 15, a second rotating shaft 17 is provided at one end of the transmission belt 16, and the output end of the driving motor 15 is transmission-connected to the second rotating shaft 17 through the transmission belt 16;

[0031] A knife holder 18 is disposed on the outer wall of the second rotating shaft 17, and a plurality of shear blades 19 are annularly distributed on the outer wall of the knife holder 18;

[0032] The driving motor 15 is used to drive the transmission belt 16 and the second rotating shaft 17 to rotate. The knife holder 18 is flipped by rotation to change the positions of different shear blades 19. Before cutting the steel wire, shear blades 19 of different sizes can be selected according to the size, volume and thickness of the steel wire. Compared with the fixed shear port, the shear port 14 can quickly adjust and replace the shear blade 19, thereby improving the shearing effect and reducing the problem of inability to cut thoroughly in sequence.

[0033] See also Figure 1 A mounting member 11 is mounted on the side wall of the fixed end shear member 2 by screws, a side slider 12 is mounted on the side wall of the mounting member 11 by screws, and a side slider 13 is provided at the middle position of the side slider 12;

[0034] The side slide block 12 and the side slide frame 13 play the role of adjusting the position of the fixed end shearing piece 2.

[0035] Working principle: In the initial state, the lead screw slider 6 drives the movable end shearing piece 1 to make its angle flush with the fixed end shearing piece 2, put the steel wire into the front end shearing port 14, and the lead screw slider 6 drives the movable end shearing piece 1 to move upward, so that the angle of the movable end shearing piece 1 is downward, and the steel wire is sheared. After that, the lead screw slider 6 moves to the initial position and resets;

[0036] Among them, the displacement sensor 8 is used to detect the position of the lead screw slider 6, and feed back a signal to the controller 7, so that the controller 7 obtains the position information of the lead screw slider 6. When the angle changes, the angle sensor 9 also feeds back an angle change signal to the controller 7, so that the controller 7 obtains the angle change information. The above sensors can facilitate users to adjust to the desired position and angle, obtain accurate position and angle information, and reset the position and angle to the initial state after the operation is completed;

[0037] The driving motor 15 is used to drive the transmission belt 16 and the second rotating shaft 17 to rotate. The knife holder 18 is flipped by rotation to change the positions of different shear blades 19. Before cutting the steel wire, shear blades 19 of different sizes can be selected according to the size, volume and thickness of the steel wire.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A reset transmission structure of a steel wire shearing mechanism of a spring machine, comprising a movable end shearing piece (1), a fixed end shearing piece (2) being installed on one side of the movable end shearing piece (1); Features: Also includes: A bracket (3) is mounted on the rear end of the movable end shearing member (1); a screw motor (4) is mounted on the upper end of the bracket (3); a ball screw (5) is mounted on one end of the screw motor (4); a screw slider (6) is mounted on the outer wall of the ball screw (5); a controller (7) is detachably mounted on the side wall of the bracket (3) by means of screws, and the output end of the controller (7) is electrically connected to the control end of the screw motor (4); a plurality of displacement sensors (8) arranged in a transversely spaced manner are arranged on the outer wall of the front end surface of the bracket (3), and the output end of the displacement sensor (8) is electrically connected to the input end of the controller (7).

2. The reset transmission structure of the spring machine wire shearing mechanism according to claim 1, characterized in that: A first rotating shaft (10) is installed on the side wall of the movable end shearing piece (1), and one end of the first rotating shaft (10) extends to the fixed end shearing piece (2). An angle sensor (9) is arranged outside the first rotating shaft (10), and the output end of the angle sensor (9) is electrically connected to the input end of the controller (7).

3. The reset transmission structure of the spring machine wire shearing mechanism according to claim 1, characterized in that: The front ends of the movable end shearing piece (1) and the fixed end shearing piece (2) are both provided with a shearing port (14); a driving motor (15) is installed on the side wall above the shearing port (14); a control end of the driving motor (15) is electrically connected to an output end of a controller (7); a transmission belt (16) is provided at the output end of the driving motor (15); a second rotating shaft (17) is provided at one end of the transmission belt (16); and the output end of the driving motor (15) is transmission-connected to the second rotating shaft (17) via the transmission belt (16).

4. The reset transmission structure of the spring machine wire shearing mechanism according to claim 3, characterized in that: A knife holder (18) is arranged on the outer wall of the second rotating shaft (17), and a plurality of shear blades (19) are arranged in an annular shape on the outer wall of the knife holder (18).

5. The reset transmission structure of the spring machine wire shearing mechanism according to claim 1, characterized in that: A mounting piece (11) is mounted on the side wall of the fixed end shearing piece (2) by means of screws, a side sliding block (12) is mounted on the side wall of the mounting piece (11) by means of screws, and a side sliding frame (13) is arranged at the middle position of the side sliding block (12).

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