Braking structure for a paper conveying platform

Abstract

The application relates to a braking structure for a paper conveying platform, which comprises a lifting mechanism, a platform device and a portal, the lifting mechanism comprises a servo motor, a transmission mechanism, two groups of guide mechanisms and a braking device, the two groups of guide mechanisms are detachably connected to the inside of the two sides of the portal, the two ends of the transmission mechanism are mounted on the portal between the two groups of guide mechanisms, the servo motor base is connected to the top of the portal through bolts, the working end of the servo motor is connected with the transmission mechanism, the servo motor provides power for the transmission mechanism, the braking device is connected with the servo motor, and the platform device is mounted on the lifting mechanism. The application has the technical effect of preventing the lifting platform from sliding downward.

Description

Technical Field

[0001] This application relates to the technical field of paper processing equipment, and in particular to a braking structure for a paper conveying platform. Background Technology

[0002] In the industrial production field, inkjet printers are key equipment for product identification, and their stability and reliability directly affect production efficiency and product quality. As an important component of inkjet printers, the performance of the paper receiving platform is of paramount importance.

[0003] During the daily operation of the inkjet printer, the paper receiving platform gradually slides down as paper accumulates. This not only disrupts the normal production process, causing disordered paper stacking and affecting product quality, but also poses a significant personal safety hazard. When workers are operating around the equipment, the sliding platform may collide with them, threatening their lives. Therefore, the paper receiving platform of the equipment needs to be modified.

[0004] Regarding the aforementioned technologies, the applicant believes there is a defect in the lifting platform's downward movement. Utility Model Content

[0005] To solve the above-mentioned technical problems, this application provides a braking structure for a paper conveying platform.

[0006] This application provides a braking structure for a paper conveying platform, which adopts the following technical solution: A braking structure for a paper conveying platform includes a lifting mechanism, a platform device, and a gantry. The lifting mechanism includes a servo motor, a transmission mechanism, two sets of guide mechanisms, and a braking device. The two sets of guide mechanisms are detachably connected to the interior of both sides of the gantry. The two ends of the transmission mechanism are mounted on the gantry between the two sets of guide mechanisms. The base of the servo motor is bolted to the top of the gantry. The working end of the servo motor is connected to the transmission mechanism, and the servo motor provides power to the transmission mechanism. The braking device is connected to the servo motor. The platform device is mounted on the lifting mechanism.

[0007] By adopting the above technical solution, two sets of guiding mechanisms are respectively installed inside the two sides of the gantry. The two ends of the transmission mechanism are installed on the gantry between the two sets of guiding mechanisms. The transmission mechanism is rotatably connected to the top and bottom of the gantry. The servo motor is installed on the top of the gantry, and the working end of the servo motor is connected to the transmission mechanism. The braking device is connected to the servo motor, which can realize a fast-response braking function. When an abnormal situation occurs during paper feeding, the braking device can be activated quickly. By using the linkage mechanism with the servo motor, the movement of the platform device can be stopped in a short time, preventing the paper from being damaged or piled up due to inertia, effectively ensuring the safety of the equipment and operators.

[0008] Preferably, the transmission mechanism includes a ball screw and a screw seat. The screw seat is installed at one end of the ball screw and is rotatably connected to the ball screw. One end of the ball screw is installed at the bottom of the gantry through the screw seat. The screw seat is detachably connected to the gantry. A bearing device is provided at the top of the gantry. The other end of the ball screw is rotatably connected to the top of the gantry through the bearing device.

[0009] By adopting the above technical solution, the screw seat is installed at one end of the ball screw and connected to the bottom end of the gantry, and the bearing device is installed at the other end of the ball screw and connected to the top end of the gantry, which improves the rigidity and stability of the mechanism. During the operation of the ball screw, the rolling motion of the balls is relatively smooth and will not produce obvious vibration and impact.

[0010] Preferably, the guiding mechanism includes an electric linear guide rail and a slider. The electric linear guide rail is detachably connected to the interior of both sides of the gantry, and the slider is mounted on the electric linear guide rail and slidably connected to the electric linear guide rail.

[0011] By adopting the above technical solution, the electric linear guide rail is installed inside both sides of the gantry. The combination of the electric linear guide rail and the slider provides extremely high guiding accuracy for the lifting and lowering movement of the platform device.

[0012] Preferably, the braking device includes a housing, a main braking mechanism, and an auxiliary locking mechanism. The housing is mounted on one end of the servo motor and is detachably connected to the servo motor. The main braking mechanism is mounted on the servo motor shaft end inside the housing and is connected to both the housing and the servo motor shaft end. The auxiliary locking mechanism is mounted on one end of the ball screw of the lead screw seat and on a gantry on one side of the lead screw seat and is detachably connected to both the ball screw and the gantry.

[0013] By adopting the above technical solution, the main braking mechanism is directly connected to and acts on the servo motor shaft. It can quickly brake the motor shaft the moment it receives the braking signal, so that the lifting and lowering movement of the platform device stops in a short time. The auxiliary locking mechanism is installed at the connection between the lead screw seat and the ball screw and on the gantry. After the main braking mechanism initially brakes, the ball screw is firmly fixed by mechanical locking to prevent the platform position from shifting due to inertia, external force impact or small gaps in the transmission components.

[0014] Preferably, the main braking mechanism includes an electromagnetic brake and a control device. The control device is connected to the electromagnetic brake through a dedicated interface. The control device is installed on the top of the inner side of the housing and is fixedly connected to the housing. The control device is used to control the working state of the electromagnetic brake. The fixed end of the electromagnetic brake is fixedly connected to the inside of the housing, and the working end of the electromagnetic brake is connected to the shaft end of the servo motor.

[0015] By adopting the above technical solution, the electromagnetic brake and control device are integrated into the housing of the braking device. The electromagnetic brake works based on the principle of electromagnetic induction. The control device sends electrical signals to it through a dedicated interface, which can achieve rapid response. When the paper conveying platform needs to be braked, the control device quickly issues a command. The excitation coil inside the electromagnetic brake is energized to generate a magnetic field, which attracts the armature and drives the friction plate to quickly press against the end of the servo motor shaft. The power transmission is cut off instantly through friction, so that the platform device stops moving in a very short time.

[0016] Preferably, the auxiliary locking mechanism includes a ratchet device, a return spring, a pawl, a geared motor, a cam, and a frame. The ratchet device is mounted on one end of the ball screw near the screw seat and is detachably connected to the ball screw. The frame is fixedly connected to a gantry on one side of the ratchet device. One end of the pawl is mounted on the frame and is rotatably connected to the frame. One end of the return spring is mounted in the middle of the pawl, and the other end of the return spring is connected to the frame. In its natural state, the ratchet device and the pawl cooperate to move. The base of the geared motor is detachably connected to the frame between the return spring and the pawl. The cam is mounted on the working end of the geared motor, and the geared motor provides power for the rotation of the cam. The cam is connected to the pawl.

[0017] By adopting the above technical solution, when the platform device rises, the auxiliary locking mechanism uses the mechanical cooperation of the ratchet device and the pawl to form a rigid locking structure. In the natural state of the return spring, that is, when the pawl is engaged with the concave part of the cam, the pawl quickly engages in the tooth groove of the ratchet device, achieving a rigid fixation at the physical level. The dual braking mechanism effectively disperses the braking load and reduces the working pressure and wear of the main braking mechanism. When the platform device needs to descend, the geared motor drives the cam to rotate. When the cam profile rotates to the convex part, it pushes the pawl to overcome the spring force and disengage from the ratchet, achieving automatic unlocking.

[0018] Preferably, the platform device includes a platform, multiple sets of adjustment mechanisms, and multiple sets of side baffles. The platform is mounted on the moving part of the ball screw in the middle, and the two sides of the platform are respectively mounted on corresponding sliders. The multiple sets of side baffles are mounted on the edge of the platform through the multiple sets of adjustment mechanisms. The side baffles are detachably connected to the adjustment mechanisms, and the platform is detachably connected to the adjustment mechanisms.

[0019] By adopting the above technical solution, the ball screw precisely controls the lifting and lowering movement of the stage, while the slider and electric linear guide rail work together, and multiple sets of side baffles are installed on the edge of the stage through the adjustment mechanism, which can be flexibly adjusted according to the different sizes and shapes of the paper.

[0020] Preferably, the adjustment mechanism includes a sliding device and a rotating base. The sliding device is installed at one end of the platform, and one end of the rotating base is installed on the sliding device. The rotating base and the sliding device are detachably connected. The other end of the rotating base is installed on a side baffle, and the side baffle is detachably connected to the rotating base.

[0021] By adopting the above technical solution, the adjustment mechanism combines a sliding device with a rotating base, allowing for adjustments to the side baffle in both vertical and angular dimensions. The sliding device slides longitudinally in a straight line, enabling rapid adjustment of the side baffle's position, while the rotating base allows the side baffle to rotate at multiple angles.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The main braking mechanism is directly connected to and acts on the servo motor shaft. It can quickly brake the motor shaft the moment it receives the braking signal, so that the lifting and lowering movement of the platform device stops in a short time. The auxiliary locking mechanism is installed at the connection between the lead screw seat and the ball screw and on the gantry. After the main braking mechanism initially brakes, the ball screw is firmly fixed by mechanical locking to prevent the platform position from shifting due to inertia, external force impact or small gaps in the transmission components.

[0023] 2. The auxiliary locking mechanism adopts the mechanical cooperation of ratchet device and pawl to form a rigid locking structure. When the return spring is in its natural state, that is, when the pawl is engaged with the concave part of the cam, the pawl quickly engages in the tooth groove of the ratchet device to achieve physical rigid fixation. The dual braking mechanism effectively disperses the braking load and reduces the working pressure and wear of the main braking mechanism. The geared motor drives the cam to rotate. When the cam profile rotates to the convex part, it pushes the pawl to overcome the spring force and disengage from the ratchet, realizing automatic unlocking. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0025] Figure 2 This is a schematic diagram of the lifting mechanism in the embodiment.

[0026] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the main braking mechanism in the embodiment.

[0027] Figure 4 This is a schematic diagram of the auxiliary locking mechanism in the embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Lifting mechanism; 11. Servo motor; 12. Transmission mechanism; 121. Ball screw; 122. Screw seat; 13. Guide mechanism; 131. Electric linear guide; 132. Slider; 14. Braking device; 141. Housing; 142. Main braking mechanism; 1421. Electromagnetic brake; 1422. Control device; 143. Auxiliary locking mechanism; 1431. Ratchet device; 1432. Return spring; 1433. Pawl; 1434. Gear motor; 1435. Cam; 1436. Frame; 2. Platform device; 21. Carrying platform; 22. Adjustment mechanism; 221. Sliding device; 222. Rotating base; 23. Side baffle; 3. Bearing device; 4. Mast. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a braking structure for a paper conveying platform. (Refer to...) Figure 1-4 The system includes a lifting mechanism 1, a platform device 2, and a gantry 4. The lifting mechanism 1 includes a servo motor 11, a transmission mechanism 12, a guide mechanism 13, and a braking device 14. The guide mechanism 13 includes an electric linear guide rail 131 and a slider 132. Two sets of electric linear guide rails 131 are respectively installed inside the two sides of the gantry 4 by bolts. The slider 132 is installed on the electric linear guide rail 131 and is slidably connected to the electric linear guide rail 131. The transmission mechanism 12 is installed between the gantry 4 and includes a ball screw 121 and a screw seat 122. One end of the ball screw 121 is installed at the bottom of the gantry 4 through the screw seat 122 and is rotatably connected to the screw seat 122. The screw seat 122 is bolted to the gantry 4. The other end of the ball screw 121 is connected to the top of the gantry 4 and is provided with a bearing device 3 at the other end of the ball screw 121. The ball screw 121 is rotatably connected to the top of the gantry 4 through the bearing device 3.

[0031] Braking device 14 includes housing 141, main braking mechanism 142, and auxiliary locking mechanism 143. Main braking mechanism 142 includes electromagnetic brake 1421 and control device 1422. Housing 141 is bolted to servo motor 11. Electromagnetic brake 1421 is installed inside housing 141 and directly connected to the spindle of servo motor 11. Control device 1422 is connected to electromagnetic brake 1421 via a dedicated interface. When a signal is transmitted through control device 1422, the electromagnetic brake... The actuator 1421 responds quickly to brake the servo motor 11. The control device 1422 is installed on the top inside the housing 141. The auxiliary locking mechanism 143 includes a ratchet device 1431, a return spring 1432, a pawl 1433, a geared motor 1434, a cam 1435, and a frame 1436. The ratchet device 1431 is mounted on the ball screw 121 above the lead screw seat 122 and is keyed to the ball screw 121. The frame 1436 is mounted on the mast 4 on one side of the lead screw seat 122. The frame 1436 is bolted to the gantry 4. One end of the pawl 1433 is hinged to the frame 1436, and the pawl 1433 is rotatably connected to the frame 1436. One end of the return spring 1432 is rotatably connected to the middle of the pawl 1433, and the other end of the return spring 1432 is rotatably connected to the frame 1436. The base of the geared motor 1434 is on the frame 1436 between the return spring 1432 and the pawl 1433. The cam 1435 is mounted on the working end of the geared motor 1434. 34 provides power for the rotation of cam 1435. Pad 1433 is connected to cam 1435. When the lifting mechanism 1 rises, pad 1433 is located in the concave part of cam 1435, and return spring 1432 is in the natural state. The mechanical cooperation between ratchet device 1431 and pad 1433 forms a rigid locking structure. At this time, the lifting mechanism 1 can only rise in one direction. When the lifting mechanism 1 needs to descend, pad 1433 is located in the convex part of cam 1435, so that pad 1433 and ratchet device 1431 no longer cooperate.

[0032] The platform device 2 includes a platform 21, an adjustment mechanism 22, and a side baffle 23. The adjustment mechanism 22 includes a sliding device 221 and a rotating base 222. Two sets of sliding devices 221 are bolted to one side of the platform 21. The rotating base 222 is installed at both ends of the side baffle 23. One end of the rotating base 222 is detachably connected to the side baffle 23, and the other end of the rotating base 222 is detachably connected to the sliding device 221. Except for the side closest to the lifting mechanism 1, the other three sides of the platform 21 are respectively equipped with corresponding adjustment mechanisms 22 and side baffles 23. The sliding device 221 is connected to the rotating base 222, which allows the side baffle 23 to be adjusted freely in both vertical and angular dimensions.

[0033] The working principle of the braking structure for a paper conveying platform in this application is as follows: A servo motor 11 base is mounted on the top of the gantry 4. The working end of the servo motor 11 is connected to a ball screw 121, providing power to the ball screw 121 to generate rotational motion. One end of the ball screw 121 is fixed to the bottom of the gantry 4 via a screw seat 122, and the other end of the ball screw 121 is rotatably connected to the top of the gantry 4 via a bearing device 3. An electric linear guide 131 is installed inside both sides of the gantry 4, and a slider 132 is connected to the electric linear guide 131. A linear guide rail 131 is slidably connected. The two sides of the platform 21 are mounted on sliders 132, and the middle of the platform 21 is mounted on the ball screw 121 moving component. During the lifting and lowering process, the sliders 132 slide along the guide rail to ensure smooth movement of the platform 21. An electromagnetic brake 1421 is mounted on the shaft end of the servo motor 11. A control device 1422 is fixed to the top of the housing 141. The control device 1422 is connected to the electromagnetic brake 1421 through a dedicated interface. The control device 1422 causes the electromagnetic brake 1421 to quickly suppress the servo motor. When the machine 11 rotates, the power output is cut off. During the upward movement, the geared motor 1434 drives the cam 1435 to the concave position, and the return spring 1432 extends naturally. Under the action of the spring force, the pawl 1433 mechanically engages with the ratchet device 1431, forming a rigid lock. At this time, the ratchet device 1431 only allows the ball screw 121 to rotate in one direction, preventing the platform 21 from falling due to accidental force and ensuring the safety of the upward process. During the downward movement, the geared motor 1434 drives the cam 1435 to rotate to the convex position, and the cam 1435 pushes the pawl 1433 to overcome the return spring. The spring 1432 rotates around the hinge, causing the pawl 1433 to disengage from the ratchet device 1431, releasing the one-way lock. The ball screw 121 can then rotate in the opposite direction, allowing the platform 21 to descend smoothly. The sliding device 221 is installed on the edge of the platform 21. One end of the rotating base 222 is connected to the sliding device 221, and the other end is fixed to the side baffle 23. The sliding device 221 can adjust the position of the side baffle 23 on the edge of the platform 21, and the rotating base 222 can change the angle of the side baffle 23 to prevent the paper from shifting or slipping during transport.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A braking structure for a paper conveying platform, characterized in that: The system includes a lifting mechanism (1), a platform device (2), and a gantry (4). The lifting mechanism (1) includes a servo motor (11), a transmission mechanism (12), two sets of guide mechanisms (13), and a braking device (14). The two sets of guide mechanisms (13) are detachably connected to the interior of both sides of the gantry (4). The two ends of the transmission mechanism (12) are installed on the gantry (4) between the two sets of guide mechanisms (13). The base of the servo motor (11) is bolted to the top of the gantry (4). The working end of the servo motor (11) is connected to the transmission mechanism (12). The servo motor (11) provides power to the transmission mechanism (12). The braking device (14) is connected to the servo motor (11). The platform device (2) is installed on the lifting mechanism (1).

2. The braking structure for a paper conveying platform according to claim 1, characterized in that: The transmission mechanism (12) includes a ball screw (121) and a screw seat (122). The screw seat (122) is installed at one end of the ball screw (121) and is rotatably connected to the ball screw (121). One end of the ball screw (121) is installed at the bottom of the gantry (4) through the screw seat (122). The screw seat (122) is detachably connected to the gantry (4). A bearing device (3) is provided on the top of the gantry (4). The other end of the ball screw (121) is rotatably connected to the top of the gantry (4) through the bearing device (3).

3. The braking structure for a paper conveying platform according to claim 1, characterized in that: The guiding mechanism (13) includes an electric linear guide (131) and a slider (132). The electric linear guide (131) is detachably connected to the interior of both sides of the gantry (4). The slider (132) is mounted on the electric linear guide (131) and is slidably connected to the electric linear guide (131).

4. The braking structure for a paper conveying platform according to claim 1, characterized in that: The braking device (14) includes a housing (141), a main braking mechanism (142), and an auxiliary locking mechanism (143). The housing (141) is installed at one end of the servo motor (11), and the housing (141) is detachably connected to the servo motor (11). The main braking mechanism (142) is installed on the shaft end of the servo motor (11) inside the housing (141), and the main braking mechanism (142) is connected to the housing (141) and the shaft end of the servo motor (11) respectively. The auxiliary locking mechanism (143) is installed on one end of the ball screw (121) of the lead screw seat and on the gantry (4) on one side of the lead screw seat (122), and the auxiliary locking mechanism (143) is detachably connected to the ball screw (121) and the gantry (4) respectively.

5. The braking structure for a paper conveying platform according to claim 4, characterized in that: The main braking mechanism (142) includes an electromagnetic brake (1421) and a control device (1422). The control device (1422) is connected to the electromagnetic brake (1421) through a dedicated interface. The control device (1422) is installed on the top of the inner side of the housing (141) and is fixedly connected to the housing (141). The control device (1422) is used to control the working state of the electromagnetic brake (1421). The fixed end of the electromagnetic brake (1421) is fixedly connected to the inside of the housing (141), and the working end of the electromagnetic brake (1421) is connected to the shaft end of the servo motor (11).

6. The braking structure for a paper conveying platform according to claim 4, characterized in that: The auxiliary locking mechanism (143) includes a ratchet device (1431), a return spring (1432), a pawl (1433), a geared motor (1434), a cam (1435), and a frame (1436). The ratchet device (1431) is mounted on one end of the ball screw (121) near the screw seat (122), and the ratchet device (1431) is detachably connected to the ball screw (121). The frame (1436) is fixedly connected to a gantry (4) on one side of the ratchet device (1431). One end of the pawl (1433) is mounted on the frame (1436), and the pawl (1433) is rotatably connected to the frame (1436). One end of the return spring (1432) is installed in the middle of the pawl (1433), and the other end of the return spring (1432) is connected to the frame (1436). In its natural state, the ratchet device (1431) and the pawl (1433) move together. The base of the geared motor (1434) is detachably connected to the frame (1436) between the return spring (1432) and the pawl (1433). The cam (1435) is installed at the working end of the geared motor (1434), and the geared motor (1434) provides power for the rotation of the cam (1435). The cam (1435) is connected to the pawl (1433).

7. The braking structure for a paper conveying platform according to claim 1, characterized in that: The platform device (2) includes a platform (21), multiple sets of adjustment mechanisms (22) and multiple sets of side baffles (23). The platform (21) is mounted on the moving part of the ball screw (121) in the middle. The two sides of the platform (21) are respectively mounted on the corresponding sliders (132). The multiple sets of side baffles (23) are mounted on the edge of the platform (21) through the multiple sets of adjustment mechanisms (22). The side baffles (23) are detachably connected to the adjustment mechanisms (22), and the platform (21) is detachably connected to the adjustment mechanisms (22).

8. The braking structure for a paper conveying platform according to claim 7, characterized in that: The adjustment mechanism (22) includes a sliding device (221) and a rotating base (222). The sliding device (221) is installed at one end of the platform (21). One end of the rotating base (222) is installed on the sliding device (221). The rotating base (222) is detachably connected to the sliding device (221). The other end of the rotating base (222) is installed on the side baffle (23). The side baffle (23) is detachably connected to the rotating base (222).

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