An instant mechanical intermittent control device

Abstract

The present invention specifically discloses an instant mechanical intermittent control device, including a plane cam mechanism, a mobile cam mechanism, and a gear rack mechanism. The present invention can randomly switch the working time and the rest time without repeatedly starting and closing the motor, greatly buffering the impact force, reducing vibration and noise, effectively reducing the impact of machine vibration on the human body during work, making work safe and simple, providing people with more comfortable working conditions, and bringing great convenience to production.

Description

Technical Field

[0001] The invention relates to an instant mechanical intermittent device, belonging to the technical field of machinery. Background Art

[0002] At present, mechanical intermittent mechanisms are usually four basic types: grooved wheel mechanism, ratchet mechanism, incomplete gear mechanism and cam intermittent mechanism. However, the above four types all control the intermittent time at equal intervals, and cannot instantly control the intermittent time between work and rest to meet work needs, so they need to be improved. At the same time, pure manual operation has low labor productivity and is prone to production accidents. At the same time, the production efficiency is low, the production quality is low, and the equipment is easy to wear. Transmission devices that require manual operation generally have a greater impact on the human body, which is easy to cause labor injuries, and the transmission is unstable and prone to produce a lot of noise. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems existing in the existing mechanism, and to provide a new type of mechanical intermittent device to buffer the direct effect of the working mechanism on the human body. The vibration is fully absorbed by the mechanical device, reducing the impact force of the vibration on the human body and avoiding labor injuries. The noise generated by the device is very small, and the power and motion are transmitted quickly, quickly and accurately. At the same time, based on the principle of mechanism combination, the device invents a mechanical intermittent device that can instantly control the working time, which brings convenience to production.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention mainly includes a bracket, a pedal rod, a pedal rod shaft, a camshaft, a push rod, a push rod guide, a push rod spring, a push rod roller, a cylindrical gear, a cylindrical gear shaft, a rack, a rack guide, a rack spring, a support plate, a support plate base, a support plate fine-tuning device, a support plate roller, a push rod, a push rod guide, a push rod spring, a push rod roller, a bearing seat plate, etc.; the bracket is mainly used as an integral support body and a fixed object, and a fixed device and mechanism are installed on the bracket. The camshaft bearing seat is fixed to the bracket by bolts and nuts, the camshaft is installed on the bracket through the camshaft bearing seat, the push rod guide is fixed to the bracket by bolts and nuts, the push rod spring limits the upward displacement by direct contact with the bracket, and the cylindrical gear shaft The cylindrical gear shaft is installed on the bracket through the bearing seat, a part of the rack guide is welded to the bracket, and the other part is fixed to the bracket with bolts and nuts. One end of the rack spring is directly hooked on the bracket to limit the displacement of one end. The support plate base is connected to the bracket through a pin key to realize the rotation of the support plate base around the connection. The support plate base fine-tuning device is fixed to the bracket through a pin key to realize the rotation around the connection. The push rod guide is fixed to the bracket through bolts and nuts, and one end of the push rod spring is hooked on the bracket to limit the displacement of one end; the pedal rod shaft is connected to the pedal rod and the camshaft through an interference fit, so that the pedal rod is stepped on to rotate the camshaft and then the cam is rotated; the cam on the camshaft is pressed by the rack on the push rod The downward force makes the push rod and the cam always in contact; the push rod can only move vertically up and down due to the limitation of the push rod guide, the upper part of the push rod is fixed with a rotatable push rod roller, the upper part of the push rod is in contact with the rack through the push rod roller, and the lower part is in contact with the cam; the push rod spring is sleeved on the push rod, the upper part is in contact with the bracket and is limited by the bracket, and the lower part is in contact with the push rod and is limited by the push rod, and can only be extended and retracted in the vertical direction; the cylindrical gear is connected to the cylindrical gear shaft by an interference fit and a key; one end of the rack is in the middle of the rack guide, and the other end is welded to the middle of the rack guide on the bracket, and is always in contact with the support plate through the stretching action of the rack spring, thereby limiting the freedom of the rack; the rack guide is fixed to the bracket by bolts and nuts; one end of the rack spring is hooked on On the bracket, one end is hooked on the rack; the support plate is fixed to the support plate base by bolts and nuts, a rotatable support plate roller is fixed on the support plate, and the upper end of the support plate is always in contact with the rack through the support plate roller; one end of the support plate base is connected to the bracket by a pin key, and the other end is fixed to the support plate base fine-tuning device by bolts and nuts; the push rod is always in contact with the rack through the push rod roller under the tensile action of the push rod spring, the lower part of the push rod is fixed with a rotatable push rod roller, and the upper part of the push rod is fixed to the base of the lower stripping roller by bolts and nuts, and the push rod is limited to move vertically up and down through the push rod guide in the middle; the push rod guide is fixed to the bracket by bolts and nuts; each bearing seat is connected to the bracket by bolts and nuts. The main function of each component is to realize the intermittent separation of the upper actuator and the lower actuator without repeatedly opening and closing the motor, that is, it can instantly control the up and down movement of the lower actuator, and instantly control the working time and non-working time.At the same time, it reduces the harm caused by vibration to the human body, and transmits stably, accurately and effectively. During non-working hours, loosen the pedal, the rack and the cylindrical gear are separated, the push rod is at the lower end, and the lower actuator is separated from the upper actuator. At this time, put the workpiece in, make sure it is placed properly and safe, step on the pedal, enter the working state, the cam pushes the push rod upward, the gear and rack match, the rack moves to move the push rod upward, and pushes the lower actuator upward to achieve the working purpose.

[0006] Features and beneficial effects of the present invention:

[0007] The invention has low cost, simple structure, convenient processing and installation, and is suitable for various time interval devices operated by human power. It effectively reduces the impact of machine vibration on the human body during work, making work safe and simple. There is no need to repeatedly start and close the motor, and the working and non-working states can be switched instantly. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the present invention;

[0009] Figure 2 for Figure 1 Left view of

[0010] Figure 3 It is a stop state diagram of the present invention;

[0011] Figure 4 It is the critical diagram of the working state and the rest state of the present invention;

[0012] Figure 5 This is a working state diagram of the present invention.

[0013] Figure 1 Middle bracket 1, pedal rod 2, pedal rod shaft 3, camshaft bearing seat 4, camshaft 5, push rod 6, push rod spring 7, rack guide 8, push rod guide 9, push rod roller 10, rack 11, cylindrical gear 12, cylindrical gear shaft 13, cylindrical gear shaft bearing seat 14, push rod guide 15, push rod spring 16, pin 17, bolt rod 18, cylindrical washer 19, nut 20, support plate base 21, pin 22, support plate 23, support plate roller 24, rack spring 25, rack guide 26, push rod roller 27, push rod 28, lower stripping roller 29, upper stripping roller 30. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0015] The present invention mainly includes a bracket 1, a pedal rod 2, a pedal rod shaft 3, a camshaft 5, a push rod 6, a push rod guide 9, a push rod spring 7, a push rod roller 10, a cylindrical gear 12, a cylindrical gear shaft 13, a rack 11, a rack guide 26, a rack spring 25, a support plate 23, a support plate base 21, a support plate fine-tuning device, a support plate roller 24, a push rod 28, a push rod guide 15, a push rod spring 16, a push rod roller 27, a bearing seat plate, etc.; the bracket 1 is mainly used as an integral support body and a fixed object, and a fixed device and mechanism are installed on the bracket 1, the camshaft bearing seat 4 is fixed to the bracket 1 by bolts and nuts, the camshaft 5 is installed on the bracket 1 by 4 camshaft bearing seats, and the push rod guide 9 is installed by screws The bolt nut is fixed to the bracket 1, the push rod spring 7 limits the upward displacement by directly contacting the bracket 1, the cylindrical gear shaft 13 is installed on the bracket 1 through the cylindrical gear shaft bearing seat 14, a part of the rack guide 26 is directly welded to the bracket 1, and the other part is fixed to the bracket 1 through bolts and nuts, one end of the rack spring 25 is directly hooked on the bracket 1 to limit the displacement of one end, the support plate base 21 is connected to the bracket 1 through a pin key to realize the rotation of the support plate base 21 around the connection, the support plate base 21 fine-tuning device is connected to the bracket 1 through a pin key to realize the rotation around the connection, the push rod guide 15 is fixed to the bracket 1 through bolts and nuts, and one end of the push rod spring 16 is directly hooked on the bracket 1 to limit The pedal rod shaft 3 is connected to the pedal rod 2 and the cam shaft 5 by an interference fit, so that the pedal rod 2 is stepped on to rotate the cam shaft 5 and then the cam is rotated; the cam on the cam shaft 5 is in contact with the cam due to the downward force of the rack 11 on the push rod 6; the push rod 6 can only move vertically up and down due to the limitation of the push rod guide 9, and the upper part of the push rod 6 is fixed with a rotatable push rod roller 10, the upper part of the push rod 6 is in contact with the rack 11 through the push rod roller 10, and the lower part is in contact with the cam; the push rod spring 7 is sleeved on the push rod 6, the upper part is in direct contact with the bracket 1 and is limited by the bracket 1, and the lower part is in contact with the push rod 6 and is limited by the push rod 6, and can only be extended and retracted in the vertical direction; the cylindrical gear 12 is connected to the cylindrical gear shaft by an interference fit and a key. 13; one end of the rack 11 is in the middle of the rack guide 26, and the other end is welded to the middle of the rack guide 26 on the bracket 1. It is always in contact with the support plate 23 through the stretching action of the rack spring 25, limiting the freedom of the rack 11; the rack guide 26 is fixed to the bracket 1 by bolts and nuts; one end of the rack spring 25 is hooked on the bracket 1, and the other end is hooked on the rack 11; the support plate 23 is connected to the support plate base 21 by bolts and nuts, and a rotatable support plate roller 24 is fixed on the support plate 23, and the upper end of the support plate 23 is in contact with the rack 11 through the support plate roller 24; one end of the support plate base 21 is fixed to the bracket 1 by a pin key, and the other end is fixed to the support plate base 21 fine-tuning device by bolts and nuts;The push rod 28 contacts the rack 11 through the push rod roller 27 under the tensile action of the push rod spring 16. The push rod roller 27 is fixed to the lower part of the push rod 28, and the upper part of the push rod 28 is fixed to the base of the lower stripping roller 29 through bolts and nuts. The push rod guide 15 in the middle limits the push rod 28 to move vertically up and down; the push rod guide 15 is fixed to the bracket 1 through bolts and nuts; and each bearing seat is connected to the bracket 1 through bolts and nuts. The main function of each component is to realize the intermittent separation of the upper actuator and the lower actuator without repeatedly opening and closing the motor, that is, to instantly control the up and down movement of the lower actuator, and instantly control the working time and non-working time. At the same time, it reduces the damage caused by vibration to the human body, and transmits stably, accurately and effectively. During non-working hours, release the pedal 2, the rack 11 is disengaged from the cylindrical gear 12, the push rod 28 is at the lower end, and the lower actuator is separated from the upper actuator. At this time, put the workpiece in, make sure it is placed properly and safe, step on the pedal 2, enter the working state, the cam pushes the push rod 6 upward, so that the gear rack 11 cooperates, the rack 11 moves to move the push rod 28 upward, and pushes the lower actuator upward to achieve the working purpose. ;

[0016] Non-working hours Figure 3 As shown in the rest state diagram, the pedal rod 2 is in a naturally loosened state, the rack 11 is separated from the cylindrical gear 12, the push rod 28 is in a low and flat position of the rack 11, and the lower stripping roller 29 is in a low and flat position and separated from the upper stripping roller 30; once the work is to be started, the pedal rod 2 is stepped on immediately, the pedal rod 2 drives the cam shaft 5 to rotate, the push rod spring 7 is compressed, and the push rod 6 is lifted, and the push rod roller 10 lifts the rack 11 to make the rack 11 rotate around the contact position with the support plate roller 24, the rack 11 is meshed with the cylindrical gear 12, and the cylindrical gear 12 rotates clockwise at a uniform speed, immediately driving the rack 11 to move to the left, and the end of the rack 11 contacts the push rod roller 27 to directly push the push rod 28 upward to the working position, and the lower stripping roller 29 is upwardly meshed with the upper stripping roller 30 to immediately enter the working state, as shown in FIG. Figure 4 As shown in the critical diagram of the rest state and the working state, at the same time, the Z-shaped corner below the rack 11 is stuck with the push rod roller 10, the rack 11 rotates downward and separates from the cylindrical gear 12, and the rack 11 stops moving and enters the working state, as shown in FIG. Figure 5 As shown in the working state diagram. When the working state ends, the pedal rod 2 is immediately released. Under the action of the push rod spring 7, the push rod 6 moves downward. The rack 11 is limited by the rack guide 26 and is separated from the push rod 6 until it leaves the Z-shaped corner and re-contacts the push rod 6. Under the action of the rack spring 25, the rack 11 moves to the right along the common tangent plane of the push rod roller 10 and the support plate roller 24. Under the action of the push rod spring 16, the push rod 28 moves downward along the moving cam at the end of the rack 11 and enters the low flat part of the moving cam. The lower stripping roller 29 is separated from the upper stripping roller 30 and leaves the working position, as shown in FIG. Figure 3 The stop state is shown in the figure.

[0017] The support plate base 21 fine-tuning device comprises a pin 17, a bolt rod 18, a cylindrical washer 19, and a nut 20; and is mainly used to adjust the gap between the upper actuator and the lower actuator. The specific operation is as follows: if it is necessary to increase the working gap, the nut connected to the bottom of the support plate base 21 is screwed downward to realize the rotation of the support plate base 21 around the connection, so that the connection between the support plate base 21 and the support plate base 21 fine-tuning device moves downward, and the support plate roller 24 moves downward as a whole, and the rack 11 is always in contact with the support plate roller 24 through the tension of the spring, that is, the downward movement of the rack 11 is realized, thereby causing the push rod 28 to move downward, and the push rod 28 drives the lower actuator to move downward, that is, the demand for increasing the working gap is achieved; if it is necessary to reduce the working gap, the nut connected to the bottom of the paper liner base is screwed upward, and the nut connected to the top of the support plate base 21 is screwed upward, so that the support plate base 21 rotates around the connection, and the connection between the support plate base 21 and the support plate base 21 fine-tuning device moves upward, and the support plate roller 24 moves upward as a whole, realizing the upward movement of the rack 11, thereby causing the push rod 28 to move upward, and the push rod 28 drives the lower actuator to move upward, that is, the demand for reducing the working gap is achieved.

[0018] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. An instant mechanical intermittent control device, characterized in that The invention comprises a bracket (1), a pedal rod (2), a pedal rod shaft (3), a cam shaft (5), a push rod (6), a push rod guide (9), a push rod spring (7), a push rod roller (10), a cylindrical gear (12), a cylindrical gear shaft (13), a rack (11), a push rod guide (15), a push rod spring (16), a rack guide (26), a rack spring (25), a support plate (23), a support plate base (21), a support plate base (21) fine-tuning device, a support plate roller (24), a push rod roller (27), a push rod (28), and a bearing seat plate; the bracket (1) is used as an integral support body and a fixed object, and a fixed device and mechanism are installed on the bracket (1); the cam shaft bearing seat (4) is fixed to the bracket (23) by bolts and nuts. 1), a camshaft (5) is mounted on a bracket (1) through a camshaft bearing seat (4), a push rod guide (9) is fixed to the bracket (1) through bolts and nuts, a push rod spring (7) limits upward displacement by contacting with the bracket (1), a cylindrical gear shaft (13) is mounted on the bracket (1) through a cylindrical gear shaft bearing seat (14), a portion of a rack guide (26) is directly welded to the bracket (1), and the other portion is fixed to the bracket (1) through bolts and nuts, one end of the rack spring (25) is hooked on the bracket (1) to limit displacement of one end, a support plate base (21) is connected to the bracket (1) through a pin key to realize the rotation of the support plate base (21) around the connection, and a support plate base (21) fine-tuning device is connected to the bracket (1) through a pin key The push rod guide (15) is connected to the bracket (1) by bolts and nuts, and one end of the push rod spring (16) is hooked on the bracket (1) to limit the displacement of one end; the pedal rod shaft (3) is connected to the pedal rod (2) and the cam shaft (5) by interference fit, so that the pedal rod (2) is stepped on to rotate the cam shaft (5) and then the cam is rotated; the cam on the cam shaft (5) is in contact with the cam due to the downward force of the rack (11) on the push rod (6); the push rod (6) moves vertically up and down through the limit of the push rod guide (9), the upper part of the push rod (6) is fixed with a rotating push rod roller (10), the upper part of the push rod (6) is in contact with the rack (11) through the push rod roller (10), and the lower part is in contact with the cam; The push rod spring (7) is sleeved on the push rod (6), the upper part of which is in direct contact with the bracket (1) and is restricted by the bracket (1), and the lower part of which is in contact with the push rod (6) and is restricted by the push rod (6), and can only be extended and retracted in the vertical direction; the cylindrical gear (12) is connected to the cylindrical gear shaft (13) by interference fit and key; one end of the rack (11) is in the middle of the rack guide (26), and the other end is welded to the middle of the rack guide (26) on the bracket (1), and contacts with the support plate (23) through the stretching action of the rack spring (25), thereby limiting the freedom of the rack (11); the rack guide (26) is fixed to the bracket (1) by bolts and nuts; one end of the rack spring (25) is hooked on the bracket (1), and the other end is hooked on the rack (11);The support plate (23) is fixed to the support plate base (21) by bolts and nuts, a rotatable support plate roller (24) is fixed on the support plate (23), and the upper end of the support plate (23) contacts the rack (11) through the support plate roller (24); one end of the support plate base (21) is connected to the bracket (1) by a pin key, and the other end is fixed to the support plate base (21) fine-tuning device by bolts and nuts; the push rod (28) contacts the rack (11) through the push rod roller (27) under the tensile action of the push rod spring (16), the lower part of the push rod (28) is fixed with the rotatable push rod roller (27), the upper part of the push rod (28) is fixed to the base of the lower stripping roller (29) by bolts and nuts, and the push rod guide (15) is used in the middle to limit the vertical up and down movement of the push rod (28); the push rod guide (15) is fixed to the bracket (1) by bolts and nuts; each bearing seat is fixed to the bracket (1) by bolts and nuts When not in operation, the pedal rod (2) is in a naturally loosened state, the rack (11) is separated from the cylindrical gear (12), the push rod (28) is in a low and flat position of the rack (11), and the lower peeling roller (29) is in a low and flat position and separated from the upper peeling roller (30); once the operation is started, the pedal rod (2) is stepped on immediately, the pedal rod (2) drives the cam shaft (5) to rotate, the push rod spring (7) is compressed, the push rod (6) is pushed up, and the push rod roller (10) is pushed up The rack (11) is raised to rotate around the contact position with the support plate roller (24), the rack (11) is meshed with the cylindrical gear (12), the cylindrical gear (12) rotates clockwise at a constant speed, and immediately drives the rack (11) to move leftward, the end of the rack (11) contacts the push rod roller (27) and directly pushes the push rod (28) to move upward until it reaches the working position, and the lower stripping roller (29) is upwardly meshed with the upper stripping roller (30) and immediately enters the working state. ; 2. The mechanical intermittent control device according to claim 1, characterized in that: The support plate base (21) fine-tuning device comprises a pin (17), a bolt rod (18), a cylindrical washer (19), and a nut (20); the support plate base (21) fine-tuning device is used to adjust the gap between the upper actuator and the lower actuator.

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