A reciprocating multi-output mechanism

Abstract

The present invention belongs to the technical field of mechanical transmission equipment, and specifically relates to a reciprocating multi-output mechanism with a variable direction. A reciprocating multi-output mechanism with a variable direction includes a gear assembly one, a gear assembly two, and a power assembly. Gear assembly one and gear assembly two are arranged on both sides of the power assembly. The power assembly includes a driving member, a gear three, and a crank rocker device. One end of gear three is engaged with gear one in gear assembly one, and the other end is engaged with gear two in gear assembly two. The driving member can drive gear two and gear one to rotate respectively through gear three, that is, gear two and gear one can serve as two output directions of the reciprocating multi-output mechanism with a variable direction, so that the input of one driving source can correspond to two output directions, thereby improving its practicality. In combination with the crank rocker device, gear assembly two and gear assembly one can also perform reciprocating motion respectively, so that the reciprocating multi-output mechanism of the present invention can be applied to more usage scenarios, thereby improving its practicality.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical transmission equipment, and in particular relates to a direction-changing reciprocating multi-output mechanism. Background Art

[0002] Most existing direction-changing mechanisms rely on circuits or air circuits for control, making the structure of the entire direction-changing mechanism very complex and inconvenient for subsequent maintenance. In addition, due to the frequent direction-changing movements during use, the direction-changing mechanism is prone to wear and tear over long periods of use, thereby reducing its service life. For example, a reciprocating cutting drive device (CN1031158172A) in the prior art can convert rotational motion into reciprocating motion and then drive a cutting device to perform reciprocating motion. The reciprocating cutting drive device uses a belt for transmission, resulting in load limitations during transmission. At the same time, the use of an eccentric wheel limits the rotational speed, resulting in poor practicality of the reciprocating cutting drive device.

[0003] In addition, the existing changing mechanism has a single power input that can only correspond to one output direction, so that the existing changing mechanism can only perform changing movement in a single direction, resulting in poor practicality and inability to be flexibly used on various automated production lines. If multiple output directions are achieved through the existing changing mechanism, a lot of corresponding power inputs will be required, which will cause the entire changing mechanism structure to be large, and the production cost will be high, and it will not be conducive to its later maintenance and parts replacement. Moreover, the existing changing mechanism has a fast conveying speed when conveying articles, which can easily cause rigid impact on the articles, causing damage to the articles during production or transportation. Furthermore, the existing changing mechanism can not only only perform changing movement in a single direction, but also cannot adjust its direction of change. Summary of the Invention

[0004] In order to solve the technical problem in the prior art that a single power source of an existing direction-changing mechanism can only have a single output direction, which makes the entire direction-changing mechanism have great limitations and poor practicality, the present invention provides a direction-changing reciprocating multi-output mechanism.

[0005] The present invention is implemented by the following technical scheme: a change-direction reciprocating multi-output mechanism, which includes a gear assembly 1, a gear assembly 2, a power assembly and a linear fast-elastic assembly, wherein the gear assembly 1 includes a gear 1 and a rack 1, and the gear 1 is meshed with the rack 1; the gear assembly 2 includes a gear 2 and a rack 2, and the gear 2 is meshed with the rack 2; a limiting block 1 is fixed on the side of the rack 2 close to the gear 2; the power assembly is used to provide power input for the entire change-direction reciprocating output mechanism; the power assembly includes a driving member, a gear 3 and a crank rocker device, one end of the gear 3 is meshed with the gear 1, and the other end of the gear 3 is meshed with the gear 2; the driving member and the crank rocker device are respectively arranged on both sides of the gear 3, the output shaft of the driving member is connected to the gear 3, and the gear 3 is driven to rotate by the driving member, and the gear 3 drives the gear 1 and the gear 2 to rotate respectively; one end of the crank rocker device is fixed on the output shaft of the driving member and a gear wheel assembly comprising a first gear and a second gear wheel assembly, wherein the first gear wheel assembly is located between the gear wheel assembly and the second gear wheel assembly, the second gear wheel assembly being located between the gear wheel assembly and the second gear wheel assembly.

[0006] As a further improvement of the present invention, a mounting groove is provided in the slider, a second spring is installed in the mounting groove, one end of the connecting block is inserted into the mounting groove and fixedly connected to the second spring, and the other end of the connecting block extends out of the slider.

[0007] As a further improvement of the present invention, the driving member drives gear three to rotate clockwise or counterclockwise; when the gear three rotates clockwise, the rack one and the rack two both move to the right, and the rack two drives the limit block one to move to the right and abut against the left side of the connecting block, the connecting block shrinks into the installation groove, the spring two is compressed, and the limit block one moves along the side of the connecting block from the left side of the connecting block to the right side of the connecting block; when the limit block one is located on the right side of the connecting block, the connecting block returns to its original position under the elastic force of the spring two; when the gear three rotates counterclockwise, The rack 1 and the rack 2 both move to the left, and the rack 2 drives the limit block 1 to move to the left and abut against the right side of the connecting block. The limit block 1 pushes the connecting block to move toward the mounting block, and the spring 1 is compressed until the connecting block abuts against the limit block 2; the connecting block is separated from the limit block 1 and retracts into the mounting groove, and the limit block 1 moves from the right side of the connecting block to the left side of the connecting block; when the limit block 1 is located on the left side of the connecting block, the spring 1 pushes the slider back to its original position, and the connecting block also extends out of the slider under the elastic force of the spring 2.

[0008] As a further improvement of the present invention, the connecting block is a rectangular parallelepiped and the side close to the spring one is an arc-shaped surface; the limit block one is a circular limit block, and the limit block one is rotatably installed on the rack two. When the limit block one moves to the right with the rack two and abuts against the arc-shaped surface, the limit block moves to the right while pushing the connecting block toward the installation groove through the arc-shaped surface.

[0009] As a further improvement of the present invention, the crank rocker device includes a crank, a connecting rod and a rocker, one end of the crank is fixed to the output shaft of the driving member, the other end of the crank is hingedly connected to one end of the connecting rod, the other end of the connecting rod is hingedly connected to one end of the rocker, and the other end of the rocker is fixed to the rotating shaft of the gear one.

[0010] As a further improvement of the present invention, the gear two and the gear three are further provided with a steering gear, and the steering gear is respectively connected to the gear two and the gear three, and the direction of the gear two is changed by the steering gear.

[0011] As a further improvement of the present invention, the steering gear is a universal coupling or a bevel gear.

[0012] As a further improvement of the present invention, the linear quick-spring assembly is used as a counting module in the direction-changing reciprocating multi-output mechanism, and one spring ejection is counted as one working cycle.

[0013] As a further improvement of the present invention, the swing angle of the rocker is 88°, and the extreme position angle of the crank is 14.

[0014] As a further improvement of the present invention, the length of the crank is a, the length of the connecting rod is b, the length of the rocker is c, and a, b and c satisfy a:b:c=17:90:30.

[0015] As a further improvement of the present invention, the gear one, the gear two and the gear three are all spur gears; the module of the gear one is 2 and the number of teeth is 30; the module of the gear two is 2 and the number of teeth is 65; the module of the gear three is 2 and the number of teeth is 17.

[0016] As a further improvement of the present invention, the driving member is a motor.

[0017] The present invention also includes an automated production line, which includes the above-mentioned direction-changing reciprocating multi-output mechanism.

[0018] The technical solution provided by the present invention has the following beneficial effects:

[0019] (1) The direction-changing reciprocating multi-output mechanism of the present invention is provided with a driving member, gear three, gear two, gear one and a crank rocker device, and the two ends of the crank rocker device are connected to gear three and gear one respectively. The driving member can drive gear two and gear one to rotate respectively through gear three, that is, gear two and gear one can serve as the two output directions of the direction-changing reciprocating multi-output mechanism, so that the input of one driving source can correspond to two output directions, thereby improving its practicality. In combination with the crank rocker device, the driving member can not only drive gear assembly one and gear assembly two to move respectively, but also enable gear assembly two and gear assembly one to reciprocate respectively, so that the direction-changing reciprocating multi-output mechanism of the present invention can be applied to more usage scenarios, thereby improving its practicality. In addition, the direction-changing reciprocating multi-output mechanism of the present invention also utilizes the characteristics of the crank rocker device, so that the time required for the direction-changing reciprocating multi-output mechanism in the working stage and the non-working stage is different, and the time required for the non-working stage is short, thereby achieving an increase in the time allocated to the working stage within the same time, thereby improving the working efficiency of the entire direction-changing reciprocating multi-output mechanism.

[0020] (2) The direction-changing reciprocating multi-output mechanism of the present invention cooperates with the limit block 2, the connecting block, the spring 2 of the linear quick-spring assembly and the limit block 1 of the gear assembly 2, so that when the rack 2 moves back and forth, the linear quick-spring assembly will also move accordingly, so that the linear quick-spring assembly can be used as a counting module to count the working cycle of the direction-changing reciprocating multi-output mechanism, so that the direction-changing reciprocating multi-output mechanism of the present invention can not only realize multi-directional reciprocating output, but also count the number of times of this movement process.

[0021] (3) The variable direction reciprocating multi-output mechanism of the present invention utilizes the characteristics of the crank rocker device to slow down the transportation of the items to be processed during the processing stage, thereby achieving stable transportation and processing of the items and avoiding collisions and damage during the processing; and the linear fast-elastic mechanism can quickly push the processed items to the next stage, thereby increasing the speed of the processed items, thereby achieving both slow and stable processing of the items and ensuring work efficiency between units.

[0022] (4) The reversible reciprocating multi-output mechanism of the present invention is provided with a steering gear between gear 3 and gear 2. The steering gear creates an angle between gear 3 and gear 2, and the linear quick-release assembly is parallel to rack 2. Rack 2 is driven by the linear quick-release assembly through limit block 1, so that under the elastic force of spring 1, the linear quick-release assembly can push the material coming from rack 1 to the direction after the reversal, thereby achieving the purpose of reversing the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of the direction-changing reciprocating multi-output mechanism provided by the present invention.

[0024] Figure 2 This is a schematic structural diagram of the linear fast-bounce component provided by the present invention.

[0025] Figure 3 This is a front view of the direction-changing reciprocating multi-output mechanism provided by the present invention.

[0026] Figure 4 This is a top view of the direction-changing reciprocating multi-output mechanism provided by the present invention.

[0027] Figure 5 This is a left side view of the direction-changing reciprocating multi-output mechanism provided by the present invention.

[0028] Figure 6 This is a schematic diagram of the rocker of the direction-changing reciprocating multi-output mechanism provided by the present invention when it rotates to the limit position 1.

[0029] Figure 7 This is a schematic diagram of the rocker of the direction-changing reciprocating multi-output mechanism provided by the present invention when it rotates to the second extreme position.

[0030] Figure 8 Schematic diagram of the rocker of the direction-changing reciprocating multi-output mechanism provided by the present invention when it is in the extreme position 1 and the extreme position 2.

[0031] The markings in the figure are: 11, gear one; 12, rack one; 21, gear two; 22, rack two; 221, limit block one; 31, driving member; 32, gear three; 33, crank rocker device; 331, crank; 332, connecting rod; 333, rocker; 4, linear quick-spring assembly; 41, guide rail; 421, slider; 422, connecting block; 43, spring one; 44, mounting block; 45, limit block two; 51, extreme position one; 52, extreme position two. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In the description of the present invention, it should be noted that for directional words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and should not be understood as limiting the specific scope of protection of the present invention. The terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "including" and "having" and any variations thereof in the description and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or devices.

[0034] This embodiment provides a reciprocating multi-output mechanism, such as Figures 1 to 3As shown, it includes: gear assembly 1, gear assembly 2, power assembly and linear fast-spring assembly 4. One end of the power assembly is connected to the gear assembly 1, and the other end of the power assembly is connected to the gear assembly 2. The power assembly is used to provide power input for the entire direction-changing multi-output mechanism. The gear assembly 1 includes gear 11 and rack 12, and the gear 11 and rack 12 are engaged with each other. The gear assembly 2 includes gear 21 and rack 22, and the gear 21 and rack 22 are engaged with each other. The power assembly includes a driving member 31, gear 32 and a crank rocker device 33. The gear 32 is arranged between the gear 2 21 and the gear 1 11, and one end of the gear 32 can be engaged with the gear 1 11, and the other end of the gear 32 can be engaged with the gear 2 21. Please refer to Figure 1 and Figure 4 The drive member 31 and the crank rocker device 33 are located on either side of gear three 32. Being located on either side of gear three 32 allows the drive member 31 to drive gear three 32 for rotation while preventing the shaft at the connection point of the drive member 31 from interfering with the transmission of the crank rocker device 33. The output shaft of the drive member 31 is connected to the rotating shaft of gear three 32, and the rotation of the drive member 31 drives the rotation of gear three 32. One end of the crank rocker device 33 is fixed to the output shaft of the drive member 31, and the other end is connected to gear one 11. The motor drives the crank rocker device 33 to move, and the interaction between the crank rocker device 33, gear one 11, gear two 21, and gear three 32 achieves reciprocating motion between rack one 12 and rack two 22. The single power input from gear three 32 enables two output directions, gear one 11 and gear two 21, simplifying the structure of the entire variable-direction reciprocating multi-output mechanism.

[0035] In this embodiment, the drive member 31 and the crank rocker device 33 simultaneously provide power input to both gear assembly 1 and gear assembly 2, enabling gear assembly 1 to reciprocate. During the reciprocating motion of gear assembly 1, the crank rocker device 33 ensures that the time spent on the reciprocating motion of gear assembly 1 varies. In this embodiment, the leftward movement of rack 12 is considered the working stroke, while the rightward movement of rack 12 is considered the non-working stroke (i.e., the idle stroke). Due to the crank rocker device 33, the leftward movement time of rack 12 is greater than the rightward movement time. This configuration allows the entire reciprocating, multi-output mechanism to effectively utilize time when used on a production line, improving its operating efficiency. Furthermore, the drive member 31 and the crank rocker device 33 also enable gear assembly 2 to meet the requirements of reciprocating motion with a quick return characteristic. This quick return feature can make the parallel speed of the working stroke small, so that the working stroke is stable and the speed of the non-working stroke (i.e., the idle return stroke) is accelerated to shorten the non-working time and achieve the purpose of improving work efficiency.

[0036] Please refer to Figure 1 and Figure 2 , the linear quick-spring assembly 4 includes a guide rail 41, a sliding member, a spring 1 43, a mounting block 44 and a limit block 2 45. The guide rail 41 is arranged parallel to the rack 2 22. The mounting block 44 is installed on the upper surface of the guide rail 41, and the limit block 2 45 is installed on the side of the guide rail 41 close to the rack 2 22. In this embodiment, with the movement direction of the rack 2 22 as the horizontal direction, the limit block 1 221 is located above the limit block 2 45 in the vertical direction. Through this arrangement, when the rack 2 22 drives the limit block 1 221 to move along the horizontal direction, the limit block 1 221 and the limit block 2 45 will not contact each other, so that the limit block 2 45 will not interfere with the movement of the limit block 1 221. One end of the spring 1 43 is fixedly connected to the mounting block 44, and the other end of the spring 1 43 is fixedly connected to the sliding member. Please refer to Figures 2 to 4 The sliding member includes a slider 421 and a connecting block 422. The slider 421 is slidably mounted on the guide rail 41 and the sliding direction of the slider 421 is consistent with the movement direction of the rack 22. The connecting block 422 is telescopically mounted on the slider 421. The connecting block 422 and the limit block 2 45 are located on the same side of the guide rail 41. Please refer to Figure 5 The distance between the lower end surface of the connecting block 422 and the lower end surface of the guide rail 41 is smaller than the distance between the upper end surface of the second limiting block 45 and the lower end surface of the guide rail 41.

[0037] In this embodiment, the slider 421 is provided with a mounting slot along the width of the guide rail 41. A second spring is installed in the mounting slot. The connecting block 422 is provided with a rod at one end that is inserted into the mounting slot. The rod is inserted into the mounting slot and fixedly connected to the second spring. When an external force is applied to the connecting block 422, the connecting block 422 drives the rod into the mounting slot, compressing the second spring. When the external force disappears, the elastic force of the second spring pushes the connecting block 422 away from the mounting slot via the rod. This operation enables the connecting block 422 to be retractably mounted on the slider 421.

[0038] Please refer to Figure 1 and Figure 2 , the connecting block 422 is a rectangular parallelepiped and the side close to the spring 1 43 is an arc-shaped surface; the limit block 1 221 is a circular limit block, and the limit block 1 221 is rotatably installed on the rack 2 22; when the limit block 1 221 moves to the right along with the rack 2 22 and abuts against the arc-shaped surface, the limit block 1 221 moves to the right while pushing the connecting block 422 toward the installation groove through the arc-shaped surface; when the limit block 1 221 moves to the left along with the rack 2 22 and abuts against the connecting block 422, the limit block will push the connecting block 422 to move to the left until the connecting block 422 abuts against the limit block 2 45, and at this time the spring 1 43 is in a compressed state. Under the action of the limit block 2 45, the connecting block 422 will shrink into the installation groove, and the limit block 1 221 will move from the right side of the connecting block 422 to the left side of the connecting block 422. At this time, the limit block 1 221 has no leftward force on the connecting block 422. Under the elastic force of the spring 1 43, the connecting block 422 will move to the right to its original position.

[0039] In this embodiment, please refer to Figure 2The connecting block 422 is a rectangular parallelepiped, and the side close to the spring 1 43 is an arc-shaped surface. Furthermore, the limit block 1 221 is a circular limit block, and the limit block 2 45 is also a circular limit block. When the limit block 1 221 moves from the left side to the right side of the connecting block 422, the limit block 1 221 directly pushes the connecting block 422 toward the installation slot, thereby enabling the limit block 1 221 to quickly move from the left side to the right side of the connecting block 422. When the limit block 1 221 moves from the right side to the left side of the connecting block 422, the right side of the connecting block 422 is a right-angled surface, so the limit block 1 221 drives the connecting block 422 to move to the left together. At this time, the spring 1 43 is compressed until the connecting block 422 abuts the limit block 2 45, which is also a circular limit block. Under the action of the second limit block 45, the connecting block 422 will shrink into the installation groove, so that the limit block 1 221 will move from the right side of the connecting block 422 to the left side, that is, the limit block 1 221 has no force on the connecting block 422, so under the elastic force of the spring 1 43, the connecting block 422 will move to the right to its original position.

[0040] In this embodiment, a steering gear may be provided between the second gear 21 and the third gear 32. The steering gear may be a universal coupling or a bevel gear. By providing the universal coupling or the bevel gear, the direction of the second gear assembly, i.e., the direction of the second rack 22, can be changed, thereby achieving the purpose of steering.

[0041] It is understood that the linear quick-release assembly in this embodiment can be used as a counting module. When used as a counting module, the movement of rack 2 from left to right and then back again is counted as one operating cycle. During this operating cycle, spring 1 pops out once. Therefore, during actual operation, the number of times spring 1 pops out can be used to calculate the number of repetitive operations of the reversible reciprocating multi-output mechanism. The specific counting operation of the linear quick-release assembly as a counting module can be referred to the following description of the reversible reciprocating multi-output mechanism of the present invention in a cutting scenario.

[0042] It is understood that when the linear quick-action assembly is used as a counting module, a sensor can be installed on the guide rail, within the sliding range of the slider. The sensor counts each rightward movement of slider 421 pushed by spring 1 (43), thereby achieving the purpose of counting the working cycle of the variable-direction reciprocating multi-output mechanism, making the entire variable-direction reciprocating multi-output mechanism more intelligent and convenient.

[0043] It is understood that the linear quick-release assembly in this embodiment can also be used as a steering pusher in the reversing reciprocating multi-output mechanism. When used as a steering pusher, the linear quick-release assembly also includes a push plate fixedly connected to the side of the slider 421 opposite the spring 1 43. The push plate is used to push the items conveyed by the rack 12 to the next process when the spring 1 43 pushes the slider 421 to its original position. In this case, the linear quick-release assembly can accelerate the processed items, thereby achieving both slow and stable processing of the items per unit time and rapid advancement of the processed items to the next stage after processing, thereby reducing the time consumed by the entire reversing reciprocating multi-output mechanism during non-operating phases and improving work efficiency. The specific use of the linear quick-release assembly as a steering pusher can be referred to below in the application of the reversing reciprocating multi-output mechanism of the present invention in a material conveying scenario.

[0044] It is understood that in this embodiment, by providing the stopper 221, as the rack 22 moves from the right end to the left end, the stopper 221 first compresses the spring 1 43 of the linear quick-release assembly. Then, under the action of the stopper 45, the stopper 221 moves from the right side to the left side of the connecting block 422. At this time, the stopper 221 has no force on the spring 1 43, allowing the elastic force of the spring 1 43 to drive the slider 421 to move to the right. This design eliminates the need for an additional component in the linear quick-release assembly to compress the spring 1 43 in order to achieve the operation of ejecting the slider 421 and the connecting block 422 via the spring 1 43, thereby simplifying the structure of the linear quick-release assembly. At the same time, by providing the limit block 1 221, the limit block 2 45 and the connecting block 422, the consistency of the linear quick-elastic assembly and the gear 2 21 during operation can be maintained, so that the linear quick-elastic assembly can be used as a counting module in some scenarios. In other scenarios, the elastic force accumulated by the spring 1 43 can be used to provide thrust for materials that need to change the conveying direction, making the entire reversing and reciprocating multi-output mechanism more practical.

[0045] In this embodiment, the crank rocker device 33 is selected to simultaneously meet the requirements of full rotation of the crank 331 and reciprocating motion of the rocker 333.

[0046] It is understandable that please refer to Figure 3The crank-rocker device 33 includes a crank 331, a connecting rod 332, and a rocker 333. One end of the crank 331 is fixed to the output shaft of the driving member 31, and the other end of the crank 331 is hinged to one end of the connecting rod 332. The other end of the connecting rod 332 is hinged to one end of the rocker 333, and the other end of the rocker 333 is fixed to the rotating shaft of the gear 11. The crank 331 and the driving member 31 are respectively arranged at the two ends of the gear. During the actual installation process, the output shaft of the driving member 31 passes through the gear 3 32 and is connected to the crank 331, so that the driving member 31 drives the gear 3 32 and the crank 331 to rotate respectively. On the side of gear three 32 where the crank 331 is located, the distance between the output shaft of the driver 31 and gear three 32 is shorter than the distance between the connecting rod 332 and gear three 32. This design ensures that the output shaft of the driver 31 does not interfere with the movement of the connecting rod 332 when the connecting rod 332 rotates with the crank 331. In this embodiment, the crank 331 is connected to the output shaft of the driver 31, providing power input for the operation of the entire crank-rocker assembly 33. The rocker 333 is fixedly connected to gear one 11, so that the reciprocating swing of the rocker 333 is converted into a directional rotation of gear one 11. Keyed pin connections are used for both the connection between the connecting rod 332 and the crank 331, and between the connecting rod 332 and the rocker 333. This keyed pin connection allows for easy replacement of these three components, further facilitating maintenance of the crank-rocker assembly 33.

[0047] Assumptions Figure 6 This is the initial state of the reversible reciprocating multi-output mechanism. At this time, the driving member 31 does not rotate and the rocker 333 is at the extreme left end point. The position of the rocker 333 at this time is set as the extreme position 1 51. At this position, the crank 331 and the connecting rod 332 coincide with each other. When the driving member 31 starts to rotate clockwise and drives the gear 3 32 and the crank rocker device 33 to rotate, until the rocker 333 rotates to the extreme right end point, please refer to Figure 7 , the position of the rocker 333 at this time is set to the extreme position 2 52, at which the distance between the end point where the crank 331 is connected to the driving member 31 and the end point where the connecting rod 332 is connected to the rocker 333 is the longest.

[0048] In this embodiment, the movement range of the rocker 333 is always between the limit position 1 51 and the limit position 2 52 .

[0049] In this embodiment, the process of moving the rocker 333 from the first extreme position 51 to the second extreme position 52 is called the idle stroke; the process of moving the rocker 333 from the second extreme position 52 to the first extreme position 51 is called the working stroke. The following describes the specific details of the two states of the reciprocating multi-output mechanism in this embodiment, namely, the idle stroke and the working stroke.

[0050] (1) Idle return stroke: During the idle return stroke, the driving member 31 drives the gear 3 32 to rotate clockwise, and the rocker 333 moves from the extreme position 1 51 to the extreme position 2 52. During this process, the gear 3 32 drives the gear 1 11 and the gear 2 21 to rotate counterclockwise. At this time, the gear 1 11 drives the rack 1 12 to move to the right, and the gear 2 21 drives the rack 2 22 to move to the right as well. Figure 6 and Figure 7 As can be seen, when the rocker 333 moves from extreme position 1 51 to extreme position 2 52 , rack 1 12 and rack 2 22 also move from the leftmost end to the rightmost end. Regarding rack 1 12 , as gear 3 32 rotates clockwise, gear 1 11 rotates counterclockwise, driving rack 1 12 to the right until the rocker 333 reaches extreme position 2 52 . Regarding rack 2 22 , as gear 3 32 rotates clockwise, gear 2 21 rotates counterclockwise, driving rack 2 22 to the right as well. The movement of rack 2 22 also causes limit block 1 221 to move rightward. During the rightward movement of limit block 1 221, when limit block 1 221 moves rightward with gear 2 21 until it abuts the left side of connecting block 422, as gear 2 21 continues to move rightward, limit block 1 221 pushes connecting block 422 into the mounting slot, compressing spring 2. Limit block 1 221 then moves along the side of connecting block 422 from the left side to the right side. When limit block 1 221 reaches the right side of connecting block 422, connecting block 422 returns to its original position under the elastic force of spring 2, and rack 2 22 continues to move rightward until the rocker 333 rotates to extreme position 2 52.

[0051] (2) Working Stroke: When the driving member 31 drives the gear 3 32 to rotate counterclockwise, the rocker 333 moves from the second limit position 52 to the first limit position 51. During this process, as the gear 3 32 rotates counterclockwise, the gear 3 32 drives the gear 2 21 and the gear 1 11 to rotate clockwise. The gear 1 11 drives the rack 1 12 from the rightmost end to the leftmost end until the rocker 333 reaches the first limit position 51. The gear 2 21 drives the rack 2 22 from the rightmost end to the leftmost end until the rocker 333 reaches the first limit position 51. As the rack 2 22 moves, the limit block 1 221 also moves leftward along with the rack 2 22. As limit block 1 221 moves from the rightmost end to the leftmost end, it first abuts the right side of connecting block 422. Since connecting block 422 is a rectangular parallelepiped with an arcuate surface on the side closest to spring 1 43, limit block 1 221 drives connecting block 422 to the left, compressing spring 1 43 until connecting block 422 abuts limit block 2 45. Under the action of limit block 2 45, connecting block 422 contracts toward the mounting slot, allowing limit block 1 221 to move from the left side of connecting block 422 to the right side. Once limit block 1 221 reaches the right side of connecting block 422, it exerts a force on connecting block 422. At this point, under the elastic force of spring 1 43, connecting block 422 briefly moves rightward to its original position. The limiting block 1 221 can continue to move leftward along with the rack 2 22 until the rocker 333 rotates to the limit position 1 51 .

[0052] In this embodiment, please refer to Figure 8 , Figure 8 Here, B1 represents the rocker arm 333 rotating to its limit position 1 (51), and B2 represents the rocker arm 333 rotating to its limit position 2 (52). The rocker arm 333 has a swing angle α, which can be 88°. The crank 331 has a maximum position angle θ, which can be 14°. The crank 331 has a length a, the connecting rod 332 has a length b, and the rocker arm 333 has a length c. The relationship between a, b, and c satisfies a:b:c = 17:90:30.

[0053] In this embodiment, Gear 1 11, Gear 2 21, and Gear 3 32 can be spur gears. When all three gears are spur gears, and Gear 3 32 directly meshes with Gear 1 11 and Gear 2 21 on both sides, Gear 1 and Gear 2 are coplanar. The reciprocating, multi-output mechanism can be used to convey or process materials coplanar.

[0054] The driving member 31 can be a motor. The motor drives the gear 3 32 to provide a power source for the entire direction-changing reciprocating multi-output mechanism, so that the direction-changing reciprocating multi-output mechanism of the present invention does not need to rely on complex circuits or gas circuits, simplifying the structure of the direction-changing reciprocating multi-output mechanism.

[0055] The module of gear 1 11 can be 2, and the number of teeth can be 30. The module of gear 2 21 can be 2, and the number of teeth can be 65. The module of gear 3 32 can be 2, and the number of teeth can be 17. By selecting gears within the above dimensions, the entire reciprocating multi-output mechanism has a compact structure and occupies a small space, allowing the reciprocating multi-output mechanism of this embodiment to be applied in scenarios with smaller spaces. In this embodiment, the use of a gear transmission method gives the entire reciprocating multi-output mechanism advantages such as high precision, good reliability, large load capacity, wide application range, and good wear resistance. In this embodiment, standard gears can be directly used for gear 1 11, gear 2 21, and gear 3 32, thereby reducing their production costs while facilitating control of the transmission ratio throughout the transmission process, thereby achieving precise transmission. In addition, when selecting gears, gears made of high-strength steel or alloy materials are preferably used to ensure the durability of each gear throughout the gear transmission process and extend the service life of the entire reciprocating multi-output mechanism.

[0056] During actual operation, the sizes of the gear 1 11, the gear 2 21, the gear 3 32, the crank 331, the connecting rod 332 and the rocker 333 can be designed according to the actual application scenarios of the variable direction reciprocating multi-output mechanism, thereby improving the flexibility and practicality of the entire variable direction reciprocating multi-output mechanism.

[0057] In addition, the inventors of this application also compared the variable direction reciprocating multi-output mechanism in this embodiment with several existing mechanisms. The results of the comparison are as follows: (1) Comparing the variable direction reciprocating multi-output mechanism in this embodiment with the reciprocating cutting drive device in the prior art (CN1031158172A), it can be seen that the reciprocating cutting drive device in the prior art uses a belt for transmission, which results in load limitation during the transmission process. At the same time, the use of an eccentric wheel limits the speed of the reciprocating cutting drive device. However, the variable direction reciprocating multi-output mechanism in this embodiment has a wide input speed range and can operate at high speeds. At the same time, compared with belt transmission, the gear train design of this mechanism has less wear and a higher safety factor, which makes the entire variable direction reciprocating multi-output mechanism have a long service life and extends its service life. (2) Comparing the direction-changing reciprocating multi-output mechanism in this embodiment with a rammer with a double crank rocker mechanism in the prior art (CN104088270B), it can be seen that the movement of the rammer with a double crank rocker mechanism in the prior art is driven only by the connecting rod driving the rammer block, and the connecting rod in the double crank rocker mechanism cannot achieve high-speed movement while carrying a heavy object. However, the weight of the rammer block in the rammer is relatively heavy, so the rammer can only move at a low speed in order to achieve ramming. Therefore, there is a contradiction between the movement speed and the weight of the driven components of the rammer using the double crank rocker mechanism in the prior art. This greatly limits the working efficiency of the double crank rocker mechanism. However, the direction-changing reciprocating multi-output mechanism in this embodiment is provided with a linear quick-release mechanism, so that when the object to be processed is large and the speed is slow, the speed of the processed object can be increased by the linear quick-release mechanism, so that the contradiction between speed and weight is alleviated, thereby improving working efficiency. (3) Comparing the direction-changing reciprocating multi-output mechanism in this embodiment with a crank rocker mechanism (CN107165997A) in the prior art with a rocker swing angle capable of bidirectional buffering, it can be seen that the spring in this mechanism can only reduce the damage caused by rigid impact to the transported objects. However, by providing a linear fast-rebound mechanism in this embodiment, not only can the damage caused by rigid impact to the transported objects be reduced, but the spring can also be used to achieve the effect of energy conversion, thereby achieving the purpose of speed change of the processed objects and realizing the effective utilization of this part of the energy of the compression spring. In summary, the direction-changing reciprocating multi-output mechanism in this embodiment is a great improvement over the prior art.

[0058] As can be appreciated, the variable-direction reciprocating multi-output mechanism in this embodiment is adjustable in size, providing a flexible range of motion, allowing for flexible installation on various machines and cooperating with other transmission mechanisms to achieve greater degrees of freedom. This allows for its application in a wide variety of applications, including material cutting, material conveying, textile machinery, printing machinery, packaging machinery, machine tools, and automotive applications.

[0059] The following describes the actual operation of the variable direction reciprocating multi-output mechanism of the present invention applied to two scenarios: material cutting and material conveying.

[0060] 1. Apply it to material cutting scenarios

[0061] In the material cutting scenario, Gear Assembly 2 in the present invention's variable-direction reciprocating multi-output mechanism can function as a feeding mechanism, Gear Assembly 1 as a cutting mechanism, and Linear Quick-Resilience Assembly 4 as a counting module. In this embodiment, Gear 1 11, Gear 2 21, and Gear 3 32 are all spur gears, with Gear 2 21 and Gear 1 11 positioned on either side of Gear 3 32. One end of Gear 3 32 meshes with Gear 2 21, and the other end of Gear 3 32 meshes with Gear 1 11.

[0062] When the gear assembly 2 is used as a feeding assembly, the length of the rack 2 22 should be greater than or equal to the distance between the center of the gear 2 21 and the center of the gear 3 32, so that the rack 2 22 can achieve the purpose of effective feeding.

[0063] In this scenario, a placement plate can be connected to rack 22 to place the material to be cut. The cutting tool is mounted on rack 12, and a cutting platform is located below rack 12. The material on the cutting platform is cut by the movement of rack 12 from right to left. Therefore, in this scenario, the first part of the gear assembly is the working area.

[0064] The specific usage is as follows:

[0065] In the initial state, the rocker 333 is in extreme position 1 51. Both rack 1 12 and rack 2 22 are now at their leftmost positions. In this scenario, the left side of rack 2 22 serves as the loading end. When rack 2 22 reaches its leftmost position, the metal sheet to be cut can be placed on the placement plate. The motor is then started clockwise, which drives gear 3 32 clockwise, which in turn drives gear 2 21 and gear 1 11 counterclockwise. Gear 2 21 drives rack 2 22 from left to right until rack 2 22 delivers the material to be cut to the cutting platform. At this point, the rocker 333 also moves from extreme position 1 51 to extreme position 2 52. When the rocker 333 reaches extreme position 2 52, the motor rotates counterclockwise, which drives gear 3 32 counterclockwise, which in turn drives gear 2 21 and gear 1 11 clockwise. Gear 11 drives rack 12, located at the far right, from right to left to cut the material on the cutting platform. When the rocker 333 moves from extreme position 2 52 to extreme position 1 51 , rack 12 moves from the far left to the far right, allowing the cutter on rack 12 to complete its cut of the material on the cutting platform. Simultaneously, rack 222 moves from the far right to the far left to load the next piece of material. During this entire cutting cycle, the linear quick-release assembly, under the action of rack 2 22 and stopper 1 221, causes spring 1 43 of the linear quick-release assembly to eject the slider once. Therefore, in this embodiment, spring 1 43 of the linear quick-release assembly ejects once each time rack 12 completes a cut of the material. In this scenario, the linear quick-release assembly can function as a counting module, counting the number of pieces of material cut by the number of times spring 1 43 ejects.

[0066] During the cutting cycle, the return stroke from extreme position 1 51 to extreme position 2 52 in this embodiment is the idle stroke, while the working stroke from extreme position 2 52 to extreme position 1 51 is the working stroke. However, due to the characteristics of the crank rocker device 33, the idle stroke is shorter than the working stroke, and the working stroke is slower than the idle stroke. Therefore, the variable direction reciprocating multi-output mechanism of this embodiment is selected to shorten the feeding time of gear assembly 2 and increase the cutting time of gear assembly 1. Furthermore, during cutting, the movement speed of rack 1 12 is slow, resulting in a relatively smooth cutting process when rack 1 12 drives the cutter to cut the material, thereby improving both cutting efficiency and cutting accuracy.

[0067] When a cycle of cutting is completed, the processed workpiece stays on the cutting platform. After entering the next cutting, rack 22 sends the workpiece to be processed to the cutting platform. The workpiece to be processed is pushed out of the cutting platform after contacting the processed workpiece. At this time, the workpiece to be processed stays in the cutting platform area after rack 2 22 reaches the right end limit position, and rack 1 12 starts to move to the left to cut.

[0068] 2. Apply it to material transportation scenarios

[0069] When the reversible reciprocating multi-output mechanism is used in a material conveying scenario, Gear Assembly 1 can serve as the feed assembly, while Gear Assembly 2 can be combined with the linear quick-release assembly to serve as the reversing assembly. Specifically, in a material conveying scenario, the right side of Gear Assembly 1 represents the previous process, meaning that material enters the reversible reciprocating multi-output mechanism from the right side of Gear Assembly 1. The linear quick-release assembly can be connected to a push plate, which runs along the length of the guide rail 41 and is fixed to the side of the slider 421 opposite Spring 1 43. In actual operation, the direction of material conveyance can be changed by adjusting the direction of Gear Assembly 2, and the linear quick-release assembly can serve as the propulsion source to divert material conveyed from Gear Assembly 1. In this application scenario, Gear 3 32 and Gear 2 21 can be connected via a universal coupling or bevel gears, and Rack 1 12 and Rack 2 22 can also be connected via a conveyor belt, which transports material conveyed from Rack 1 12 to Gear Assembly 2. In actual operation, a suitable universal coupling or bevel gear is selected according to the specific direction of the steering to achieve the purpose of changing the direction of the gear assembly 2.

[0070] In a material conveying scenario, the rack 12 may be connected to a placement plate for placing the material to be transported, or any other device in the prior art that can place the material to be transported.

[0071] The specific operation of the entire reversible reciprocating multi-output mechanism in the material conveying scenario is as follows: First, adjust the angle between gear assembly 2 and gear assembly 1 according to the actual material conveying requirements to achieve the purpose of changing direction during the material conveying process.

[0072] Set rocker 333 to extreme position -51, the initial state of the reversible reciprocating multi-output mechanism. At this point, start the motor clockwise, causing Gear 3 32 to rotate clockwise. Gear 2 21 then drives Gear 1 11 and Gear 3 32 counterclockwise, respectively. Gear 1 11 drives Rack 1 12 rightward, and Gear 2 21 drives Rack 2 22 rightward. When Rack 1 12 reaches its rightmost end, material from the previous process can be placed on a placement plate fixed to Rack 1 12. Rack 1 12 then drives the material to be transported from right to left via the placement plate. When the material on Rack 1 12 reaches the conveyor belt, inertia forces the material into the conveyor belt between Rack 1 12 and Rack 2 22, where it is transported from Rack 1 12 to Rack 2 22. When rack 1 12 moves to the leftmost end, the material on the conveyor belt also moves to rack 2 22. Rack 2 22 also moves to the leftmost end. Under the action of limit block 2 45, limit block 1 221 moves from the right side of connecting block 422 to the left side. At this time, limit block 1 221 has no force on connecting block 422. Under the elastic force of spring 1 43, slider 421 and connecting block 422 move to the right, and drive the push plate fixedly connected to slider 421 to push the material on the conveyor belt to the next process. In the material conveying scenario, by setting a steering gear between gear 2 21 and gear 3 32, it is possible to realize reversing operation during the material conveying process. At the same time, by setting a linear fast-spring component, it can provide a driving force for the material that needs to be turned, so that the push plate can turn the material.

[0073] It can be understood that the linear quick-action assembly can also convert the relatively smooth and slow rack movement of rack 12 into linear quick motion, thereby achieving the ability to divert the material while quickly pushing the material into the next process.

[0074] In material conveying scenarios, the crank rocker device 33 is incorporated into the reversible reciprocating multi-output mechanism. Due to its characteristics, the rocker 333 moves from extreme position 1 51 to extreme position 2 52 in a short time, enabling rapid diversion of materials on the conveyor belt and their advancement to the next process. Furthermore, when the rocker 333 moves from extreme position 2 52 to extreme position 1 51 , rack 1 12 moves from right to left. Due to the characteristics of the crank rocker device 33 , this movement is slow and time-consuming, reducing impact and vibration on the conveyed materials during transportation and protecting the materials during transport.

[0075] The above describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A reversible reciprocating multi-output mechanism, characterized in that: It includes: A gear assembly 1, comprising a gear 1 (11) and a rack 1 (12), wherein the gear 1 (11) and the rack 1 (12) are meshed with each other; The second gear assembly comprises a second gear (21) and a second rack (22), wherein the second gear (21) and the second rack (22) are meshed with each other; a limiting block (221) is fixed on one side of the second rack (22) close to the second gear (21). A power assembly is used to provide power input for the entire direction-changing reciprocating output mechanism; the power assembly includes a driving member (31), a gear three (32) and a crank rocker device (33), one end of the gear three (32) is meshed with the gear one (11), and the other end of the gear three (32) is meshed with the gear two (21); the driving member (31) and the crank rocker device (33) are respectively arranged on both sides of the gear three (32), and the output shaft of the driving member (31) is connected to the gear three (32), through The driving member (31) drives the gear three (32) to rotate, and the gear three (32) drives the gear one (11) and the gear two (21) to rotate respectively; one end of the crank rocker device (33) is fixed on the output shaft and is located between the gear three (32) and the driving member (31), and the other end of the crank rocker device (33) is connected to the gear one (11); the rack one (12) and the rack two (22) are driven to reciprocate respectively through the crank rocker device (33); A linear quick-spring assembly (4) comprises a guide rail (41), a sliding member, a spring (43), a mounting block (44) and a limit block (45), wherein the guide rail (41) is arranged parallel to the rack (22), the mounting block (44) is mounted on the upper surface of the guide rail (41), and the limit block (45) is mounted on the side of the guide rail (41) close to the rack (22); one end of the spring (43) is fixedly connected to the mounting block (44), and the other end of the spring (43) is fixedly connected to the sliding member; the sliding member comprises a slider (421) and a connecting block (422), wherein the slider (421) is slidably mounted on the guide rail (41) and the sliding direction of the slider (421) is consistent with the movement direction of the second rack (22); the connecting block (422) is telescopically mounted on the slider (421), and the connecting block (422) and the second limit block (45) are located on the same side of the guide rail (41); and the distance between the lower end surface of the connecting block (422) and the lower end surface of the guide rail (41) is smaller than the distance between the upper end surface of the second limit block (45) and the lower end surface of the guide rail (41).

2. The direction-changing reciprocating multi-output mechanism according to claim 1, characterized in that: The slider (421) is provided with a mounting groove, a second spring is installed in the mounting groove, one end of the connecting block (422) is inserted into the mounting groove and fixedly connected to the second spring, and the other end of the connecting block (422) extends out of the slider (421).

3. The direction-changing reciprocating multi-output mechanism according to claim 2, characterized in that: The driving member (31) drives the gear three (32) to rotate clockwise or counterclockwise; When the gear three (32) rotates clockwise, the rack one (12) and the rack two (22) both move to the right, the rack two (22) drives the limit block one (221) to move to the right and abut against the left side of the connecting block (422), the connecting block (422) shrinks into the slider (421), and the limit block one (221) moves along the side of the connecting block (422) from the left side of the connecting block (422) to the right side of the connecting block (422); when the limit block one (221) is located on the right side of the connecting block (422), the connecting block (422) returns to its original position under the elastic force of the spring two; When the gear 3 (32) rotates counterclockwise, the rack 1 (12) and the rack 2 (22) both move to the left, and the rack 2 (22) drives the limit block 1 (221) to move to the left and abut against the right side of the connecting block (422). The limit block 1 (221) moves toward the mounting block (44) by pushing the connecting block (422), and the spring 1 (43) is compressed until the connecting block (422) abuts against the mounting block (44). The limiting block 2 (45) and the connecting block (422) are separated from the limiting block 1 (221) and retracted into the installation groove, and the limiting block 1 (221) moves from the right side of the connecting block (422) to the left side of the connecting block (422); when the limiting block 1 (221) is located on the left side of the connecting block, the spring 1 (43) pushes the slider (421) back to its original position, and the spring 2 also pushes the connecting block back to its original position.

4. The direction-changing reciprocating multi-output mechanism according to claim 2, characterized in that: The connecting block (422) is a rectangular parallelepiped and has an arc-shaped surface on one side close to the spring (43); the limiting block (221) is a circular limiting block, and the limiting block (221) is rotatably mounted on the rack (22); when the limiting block (221) moves rightward along with the rack (22) and abuts against the arc-shaped surface, the limiting block (221) moves rightward while pushing the connecting block (422) toward the mounting groove through the arc-shaped surface.

5. The direction-changing reciprocating multi-output mechanism according to claim 1, characterized in that: The crank rocker device (33) comprises a crank (331), a connecting rod (332) and a rocker (333), one end of the crank (331) is fixed to the output shaft of the driving member (31), the other end of the crank (331) is hingedly connected to one end of the connecting rod (332), the other end of the connecting rod (332) is hingedly connected to one end of the rocker (333), and the other end of the rocker (333) is fixed to the rotating shaft of the gear 1 (11).

6. The direction-changing reciprocating multi-output mechanism according to claim 1, characterized in that: The gear 2 (21) and the gear 3 (32) are also provided with a steering gear, which is respectively connected to the gear 2 (21) and the gear 3 (32), and changes the direction of the gear 2 (21) through the steering gear.

7. The direction-changing reciprocating multi-output mechanism according to claim 6, characterized in that: The steering gear is a universal coupling or a bevel gear.

8. The direction-changing reciprocating multi-output mechanism according to claim 1, characterized in that: The linear quick-spring assembly is used as a counting module in the direction-changing reciprocating multi-output mechanism, and one ejection of the spring (43) is counted as one working cycle.

9. The direction-changing reciprocating multi-output mechanism according to claim 5, characterized in that: The swing angle of the rocker (333) is 88°, and the extreme position angle of the crank (331) is 14°; And / or, the length of the crank (331) is a, the length of the connecting rod (332) is b, the length of the rocker (333) is c, and a, b and c satisfy a:b:c=17:90:

30.

10. The direction-changing reciprocating multi-output mechanism according to claim 1, characterized in that: The gear 1 (11), the gear 2 (21) and the gear 3 (32) are all spur gears; the module of the gear 1 (11) is 2 and the number of teeth is 30; the module of the gear 2 (21) is 2 and the number of teeth is 65; the module of the gear 3 (32) is 2 and the number of teeth is 17; And / or; the driving member (31) is a motor.

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