Automatic back pressure device for display backboard reflector plate

Abstract

The utility model relates to an automatic back pressure device for a reflector plate of a display backboard. The automatic back pressure device comprises a device body and a device shell. And a reflector plate pinch roller assembly mechanism is arranged in the equipment main body. The reflector plate pressing wheel assembly mechanism comprises a manipulator base, a manipulator arm, a pressing wheel disc changing arm, a pressing wheel fine adjustment device, a pressing wheel lifting device and a buffering device. A contact support rod is arranged on the pinch roller fine tuning device, a plurality of pressure sensing contacts are arranged on the contact support rod, and a contact moving plate is arranged at the upper end of the pinch roller fixing support; when the pressing wheel fixing support moves up and down along the pressing wheel guide rail, the contact moving plate also moves up and down along with the pressing wheel fixing support, the pressure sensing contact senses the moving condition of the contact moving plate at any time, the moving condition of the pressing wheel lifting device is dynamically monitored in real time, and the back-pressing effect of the back-pressed reflector plate is improved. The device further has the functions of improving the positioning accuracy and improving the back pressure efficiency.

Description

[Technical field]

[0001] The utility model relates to the technical field of production and processing equipment, in particular to an automatic back-pressing device for a display back plate reflective sheet used in the production of a display back plate. [Background technology]

[0002] As society continues to progress and develop, the living standards of consumers continue to improve. At the same time, TV screens or display screens have been widely used by every household of consumers. In the process of processing the display backplane of a TV or a computer monitor, a layer of reflective sheet must be attached to the display backplane. The reflective sheet is mainly used to evenly reflect the light emitted by the backlight source onto the display module, making the screen display clearer and the brightness more uniform, and avoiding light directly shining into the eyes and causing visual fatigue. If the reflective sheet is not well bonded and back-pressed, degumming, light leakage and other undesirable phenomena will occur on the surface of the reflective sheet, which will adversely affect the entire backlight system of the display screen, thereby affecting the quality of the display screen.

[0003] There are currently two solutions for back-pressing reflective sheets in the prior art. One technical solution is mainly manual operation, i.e., manual back-pressing. This method is highly dependent on manpower, and the stability of the back-pressed reflective sheet is relatively poor, and the back-pressing efficiency is relatively low. Another technical solution is mainly to use a robot-assisted back-pressing method. Although this back-pressing method improves the efficiency of the back-pressing reflective sheet, since the pressure wheel during the machine back-pressing does not increase the dynamic adjustment of the pressure, the back-pressing effect of the reflective sheet after the back-pressing is not very good. [Contents of the utility model]

[0004] In view of this, the technical problem to be solved by the utility model is to provide an automatic back-pressing device for a display back panel reflective sheet, which can not only improve the back-pressing effect of the reflective sheet after being back-pressed, but also improve the positioning accuracy and the back-pressing efficiency.

[0005] To solve the above technical problems, the technical solution in the utility model provides an automatic back-pressing device for a display back panel reflective sheet, which includes a device body directly placed on the ground and a device shell installed on the periphery of the device body; a belt line transmission component mechanism, a reflective sheet front positioning component mechanism, a reflective sheet left and right positioning component mechanism, a reflective sheet lifting component mechanism, and a reflective sheet pressing wheel component mechanism are arranged inside the device body; the reflective sheet front positioning component mechanism and the reflective sheet left and right positioning component mechanism are located in the same plane and are arranged adjacent to each other; the reflective sheet lifting component mechanism is located below the reflective sheet front positioning component mechanism and the reflective sheet left and right positioning component mechanism, and the belt line transmission component mechanism is located below the reflective sheet component mechanism;

[0006] The reflective sheet pressure wheel assembly mechanism includes a manipulator base, a manipulator arm installed on the manipulator base, a pressure wheel disc changing arm connected to the manipulator arm, a pressure wheel disc changing device installed at the other end of the pressure wheel disc changing arm, a pressure wheel lifting device installed on the pressure wheel fine-tuning device for controlling up and down movement, and a buffer device installed inside the pressure wheel lifting device and located at the lower end of the pressure wheel fine-tuning device.

[0007] The pressure wheel lifting device includes pressure wheel guide rails installed on both sides of the pressure wheel fine-tuning device, guide rail sliders installed on the pressure wheel guide rails, a pressure wheel fixing bracket installed on the guide rail sliders, a pressure wheel fixing frame installed at the lower end of the pressure wheel fixing bracket, two eccentric rotating shafts installed on the pressure wheel fixing frame, a pressure wheel rotating shaft installed on the eccentric rotating shaft, a return pressure wheel installed on the periphery of the pressure wheel rotating shaft, and a polyurethane rubber coating layer installed on the periphery of the pressure wheel.

[0008] The buffer device includes spring plungers installed at both ends of the pressure wheel fixing frame, a pressure wheel pressure plate installed on the upper ends of the two spring plungers, a buffer pad installed at a central position above the pressure wheel pressure plate, and a buffer spring installed on the buffer pad, the lower end of the buffer spring is connected to the buffer pad, and the upper end of the buffer spring is connected to the inside of the pressure wheel fine-tuning device.

[0009] A contact support rod is arranged on the pressure wheel fine-tuning device, and a plurality of pressure sensing contacts are arranged on the contact support rod. A contact moving plate for being sensed by the pressure sensing contacts is arranged on the upper end of the pressure wheel fixing bracket; when the pressure wheel fixing bracket moves up and down along the pressure wheel guide rail, the contact moving plate arranged on the pressure wheel fixing bracket also moves up and down, and the pressure sensing contacts sense the movement of the contact moving plate at any time, thereby realizing dynamic and real-time monitoring of the movement of the pressure wheel lifting device.

[0010] It is further defined that the front positioning assembly mechanism of the reflective sheet includes alignment blocks arranged at both ends, a front positioning bracket installed between the alignment blocks at both ends, a front positioning fixing block installed on the front positioning bracket and located in the middle position, a front positioning clamping assembly installed on the front positioning fixing block and located on the other side of the front positioning bracket, and a plurality of front positioning cylinders installed at intervals and gaps below the front positioning fixing block.

[0011] It is further defined that the left and right positioning assembly mechanism of the reflective sheet includes left and right positioning fixing mechanisms arranged at both ends, left and right positioning brackets installed between the left and right positioning fixing mechanisms at both ends, left and right positioning cylinder fixing plates installed on the left and right positioning brackets and located at the middle position, left and right positioning clamping assemblies installed on the left and right positioning cylinder fixing plates and located on the other side of the left and right positioning brackets, and a plurality of left and right positioning alignment roller mechanisms installed inside the left and right positioning cylinder fixing plates.

[0012] It is further defined that the reflector sheet lifting assembly mechanism includes a lifting motor bracket, a lifting electric motor installed at one end of the lifting motor bracket, a transmission rod mechanism installed at the other end of the lifting motor bracket, and a lifting clamping positioning plate mechanism respectively installed at both ends of the transmission rod mechanism; the transmission rod mechanism includes a transmission rod connected to the lifting motor at one end, a transmission rod fixing seat installed at the other end of the transmission rod, and a transmission baffle installed on the transmission rod and located on one side of the transmission rod fixing seat.

[0013] The jacking clamping positioning plate mechanism includes a jacking mounting plate installed on one end of a jacking motor bracket and the end surface of a transmission rod fixing seat, a jacking guide rail fixedly installed on both sides of the jacking mounting plate, a jacking guide rail slider installed on the jacking guide rail and capable of sliding along the jacking guide rail, a jacking movable plate installed on the jacking guide rail slider, a jacking movable slider installed on the back of the jacking movable plate, a screw bearing seat installed on the upper end of the jacking mounting plate, a jacking screw passing through the screw bearing seat, the jacking movable slider, and the upper end surface of the jacking motor bracket, and a jacking support frame installed between the jacking movable plates at both ends for placing workpieces that need to be jacked and moved.

[0014] When the lifting screw rotates, the lifting moving slider is driven to move upward or downward along the lifting screw, and the lifting guide slider is driven to move upward or downward along the lifting guide rail; the lifting support frame drives the workpiece placed on the lifting support frame to move.

[0015] It is further defined that the belt line transmission component mechanism includes a transmission component bracket, a pulley conveying mechanism respectively installed on both sides of the transmission component bracket, a transmission power component mechanism installed at one end of the transmission component bracket for controlling the movement of the pulley conveying mechanism, a plurality of photoelectric sensor components arranged on one side of the transmission component bracket, and a plurality of workpieces placed on the pulley conveyor.

[0016] The pulley conveying mechanism comprises a plurality of pulley bearing brackets mounted on the inner side wall of the transmission component bracket, a pulley mounted on the pulley bearing bracket, and a transmission belt connecting the plurality of pulleys together.

[0017] The transmission power component mechanism includes a power mounting plate placed on one end of the transmission component bracket, a motor support mounted on the back of the power mounting plate, a belt component servo motor mounted on the motor support, a belt shaft mounted on the belt component servo motor, a belt driving pulley mounted on the belt shaft, a belt rotating shaft mounted between the belt pulleys on both sides, and a belt driven pulley mounted on the belt rotating shaft; the pulley on one side and the belt driven pulley are simultaneously mounted on the belt rotating shaft; the belt driving pulley and the belt driven pulley are meshed with each other.

[0018] When in use, the servo motor of the belt assembly drives the belt driving pulley arranged on the belt rotating shaft to rotate, and the belt driving pulley drives the belt driven pulley to rotate, the belt driven pulley drives the belt rotating shaft to rotate, the belt rotating shaft drives the pulleys arranged on both sides of the transmission assembly bracket to rotate, the rotation of the pulleys drives the transmission belt arranged on the multiple pulleys to move, and the transmission belt drives the workpiece placed on the transmission belt to move.

[0019] The beneficial technical effects of the utility model are as follows: the reflective sheet pressure wheel assembly mechanism comprises a manipulator base, a manipulator arm mounted on the manipulator base, a pressure wheel plate changing arm connected to the manipulator arm, a pressure wheel fine-tuning device mounted on the other end of the pressure wheel plate changing arm, a pressure wheel lifting device mounted on the pressure wheel fine-tuning device for controlling the up and down movement, and a buffer device mounted inside the pressure wheel lifting device and located at the lower end of the pressure wheel fine-tuning device;

[0020] The pressure wheel lifting device includes pressure wheel guide rails installed on both sides of the pressure wheel fine-tuning device, guide rail sliders installed on the pressure wheel guide rails, pressure wheel fixing brackets installed on the guide rail sliders, pressure wheel fixing frames installed at the lower ends of the pressure wheel fixing brackets, two eccentric shafts installed on the pressure wheel fixing frame, a pressure wheel shaft installed on the eccentric shaft, a return pressure wheel installed on the periphery of the pressure wheel shaft, and a polyurethane rubber coating layer installed on the periphery of the pressure wheel; the buffer device includes spring plungers installed on both ends of the pressure wheel fixing frame, a pressure wheel pressure plate installed on the upper ends of the two spring plungers, a buffer pad installed at a central position on the pressure wheel pressure plate, and a buffer spring installed on the buffer pad, the lower end of the buffer spring is connected to the buffer pad, and the upper end of the buffer spring is connected to the inside of the pressure wheel fine-tuning device.

[0021] The pressure wheel fine-tuning device is provided with a contact support rod, and a plurality of pressure sensing contacts are provided on the contact support rod. The upper end of the pressure wheel fixed support is provided with a contact moving plate for being sensed by the pressure sensing contact; when the pressure wheel fixed support moves up and down along the pressure wheel guide rail, the contact moving plate provided on the pressure wheel fixed support also moves up and down, and the pressure sensing contact senses the movement of the contact moving plate at any time, so as to realize dynamic real-time monitoring of the movement of the pressure wheel lifting device, and can dynamically adjust the position of the pressure wheel moving up and down at any time, so as to make the back pressure constant, thereby realizing the improvement of the back pressure effect of the reflective sheet after being back pressed. Compared with similar products in the prior art, it can be known that the device described in the utility model of this case also has the function of improving positioning accuracy and back pressure efficiency.

[0022] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

Brief Description of the Drawings

[0023] Figure 1This is a three-dimensional diagram of an automatic back-pressing device for a display back plate reflector according to the utility model;

[0024] Figure 2 It is a schematic diagram of a top view of an automatic back pressure device for a display back plate reflector according to the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the belt line transmission component mechanism in the utility model;

[0026] Figure 4 It is a schematic diagram of the belt line transmission assembly mechanism in the utility model when viewed from above;

[0027] Figure 5 It is a side view of the belt line transmission component mechanism in the utility model;

[0028] Figure 6 It is a three-dimensional diagram of the front positioning assembly mechanism of the reflector in the utility model;

[0029] Figure 7 It is a three-dimensional diagram of the reflective sheet pressure wheel assembly mechanism in the utility model;

[0030] Figure 8 This is a front view schematic diagram of the reflector pressure wheel assembly mechanism in the utility model;

[0031] Fig. 9 It is a schematic diagram of the reflective sheet pressure wheel assembly mechanism in the utility model when viewed from above;

[0032] Fig.10 It is a three-dimensional diagram of the left and right positioning assembly mechanism of the reflector in the utility model;

[0033] Fig.11 It is a three-dimensional diagram of the reflector lifting assembly mechanism in the utility model;

[0034] Fig.12 This is a schematic diagram of the reflector lifting assembly mechanism in the utility model from a top view. [Specific implementation method]

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] Please refer to Figures 1 to 12As shown, an automatic back-pressure device for a display back panel reflective sheet is described below in combination with an embodiment, which includes a device main body 1 directly placed on the ground, a device housing 2 installed on the periphery of the device main body 1, a belt line transmission component mechanism 4, a reflective sheet front positioning component mechanism 5, a reflective sheet left and right positioning component mechanism 6, a reflective sheet lifting component mechanism 7, and a reflective sheet pressure wheel component mechanism 8.

[0037] The reflective sheet pressure wheel assembly mechanism 8 includes a manipulator base, a manipulator arm 801 installed on the manipulator base, a pressure wheel disc changing arm 802 connected to the manipulator arm 801, a pressure wheel fine-tuning device 803 installed on the other end of the pressure wheel disc changing arm 802, a pressure wheel lifting device installed on the pressure wheel fine-tuning device 803 for controlling the up and down movement, and a buffer device installed inside the pressure wheel lifting device and located at the lower end of the pressure wheel fine-tuning device.

[0038] The pressure wheel lifting device includes pressure wheel guide rails 804 installed on both sides of the pressure wheel fine-tuning device 803, guide rail sliders 805 installed on the pressure wheel guide rails 804, a pressure wheel fixing bracket 806 installed on the guide rail sliders 805, a pressure wheel fixing frame 807 installed at the lower end of the pressure wheel fixing bracket 806, two eccentric rotating shafts 808 installed on the pressure wheel fixing frame 807, a pressure wheel rotating shaft 809 installed on the eccentric rotating shaft 808, a return pressure wheel 810 installed on the periphery of the pressure wheel rotating shaft 809, and a polyurethane rubber coating layer 811 installed on the periphery of the pressure wheel 810.

[0039] The buffer device includes spring plungers 812 installed at both ends of the pressure wheel fixing frame 807, a pressure wheel pressure plate 813 installed on the upper ends of the two spring plungers 812, a buffer pad 814 installed at the central position above the pressure wheel pressure plate 813, and a buffer spring 815 installed on the buffer pad 814, wherein the lower end of the buffer spring 815 is connected to the buffer pad 814, and the upper end of the buffer spring 815 is connected to the inside of the pressure wheel fine-tuning device 803.

[0040] A contact support rod 816 is arranged on the pressure wheel fine-tuning device, and a plurality of pressure sensing contacts 817 are arranged on the contact support rod 816. A contact moving plate 818 for being sensed by the pressure sensing contact 817 is arranged on the upper end of the pressure wheel fixing bracket 806; when the pressure wheel fixing bracket 806 moves up and down along the pressure wheel guide rail 804, the contact moving plate 818 arranged on the pressure wheel fixing bracket 806 also moves up and down, and the pressure sensing contact 817 senses the movement of the contact moving plate 818 at any time, thereby realizing dynamic and real-time monitoring of the movement of the pressure wheel lifting device.

[0041] The reflective sheet front positioning assembly mechanism 5 includes alignment blocks 501 arranged at both ends, a front positioning bracket 502 installed between the alignment blocks 501 at both ends, a front positioning fixing block 503 installed on the front positioning bracket 502 and located in the middle position, a front positioning clamping assembly 504 installed on the front positioning fixing block 503 and located on the other side of the front positioning bracket 502, and a plurality of front positioning cylinders 505 installed below the front positioning fixing block 503 and arranged at a distance gap.

[0042] The reflective sheet left and right positioning assembly mechanism 6 includes left and right positioning fixing mechanisms 601 arranged at both ends, left and right positioning brackets 602 installed between the left and right positioning fixing mechanisms 601 at both ends, left and right positioning cylinder fixing plates 603 installed on the left and right positioning brackets 602 and located at the middle position, left and right positioning clamping assemblies 604 installed on the left and right positioning cylinder fixing plates 603 and located on the other side of the left and right positioning brackets 602, and a plurality of left and right positioning alignment roller mechanisms 605 installed inside the left and right positioning cylinder fixing plates 603.

[0043] The reflector sheet lifting assembly mechanism 7 includes a lifting motor bracket 701, a lifting electric motor 702 installed at one end of the lifting motor bracket 701, a transmission rod mechanism installed at the other end of the lifting motor bracket 701, and lifting clamping positioning plate mechanisms respectively installed at both ends of the transmission rod mechanism; the transmission rod mechanism includes a transmission rod 703 connected to the lifting motor 702 at one end, a transmission rod fixing seat 704 installed at the other end of the transmission rod 703, and a transmission baffle 705 installed on the transmission rod 703 and located on one side of the transmission rod fixing seat 704.

[0044] The jacking clamping positioning plate mechanism includes a jacking mounting plate 706 installed on one end of a jacking motor bracket 701 and the end surface of a transmission rod fixing seat 704, a jacking guide rail 707 fixedly installed on both sides of the jacking mounting plate 706, a jacking guide rail slider 708 installed on the jacking guide rail 707 and capable of sliding along the jacking guide rail 707, a jacking movable plate 709 installed on the jacking guide rail slider 708, a jacking movable slider 710 installed on the back of the jacking movable plate 709, a screw bearing seat 711 installed on the upper end of the jacking mounting plate 706, a jacking screw 712 passing through the screw bearing seat 711, the jacking movable slider 710, and the upper end surface of the jacking motor bracket 701, and a jacking support frame installed between the jacking movable plates 709 at both ends for placing workpieces that need to be jacked and moved.

[0045] When the lifting screw 712 rotates, the lifting movable slider 708 is driven to move upward or downward along the lifting screw 712, and the lifting guide slider 708 is driven to move upward or downward along the lifting guide rail 707; the lifting support frame drives the workpiece placed on the lifting support frame to move.

[0046] The belt line transmission component mechanism 4 includes a transmission component bracket 401, a pulley conveying mechanism 402 respectively installed on both sides of the transmission component bracket 401, a transmission power component mechanism 403 installed at one end of the transmission component bracket 401 for controlling the movement of the pulley conveying mechanism 402, a plurality of photoelectric sensor components 404 arranged on one side of the transmission component bracket 401, and a plurality of workpieces placed on the pulley conveying mechanism 402.

[0047] The pulley conveying mechanism 402 includes a plurality of pulley bearing brackets mounted on the inner side wall of the transmission component bracket 401, a pulley mounted on the pulley bearing bracket, and a transmission belt connecting the plurality of pulleys together.

[0048] The transmission power component mechanism 403 includes a power mounting plate placed on one end of the transmission component bracket 401, a motor support installed on the back of the power mounting plate, a belt component servo motor installed on the motor support, a belt shaft installed on the belt component servo motor, a belt driving pulley installed on the belt shaft, a belt rotating shaft installed between the belt pulleys on both sides, and a belt driven pulley installed on the belt rotating shaft; the pulley on one side and the belt driven pulley are simultaneously installed on the belt rotating shaft; the belt driving pulley and the belt driven pulley are meshed with each other.

[0049] When in use, the servo motor of the belt assembly drives the belt driving pulley arranged on the belt rotating shaft to rotate, and the belt driving pulley drives the belt driven pulley to rotate, the belt driven pulley drives the belt rotating shaft to rotate, the belt rotating shaft drives the pulleys arranged on both sides of the transmission assembly bracket to rotate, the rotation of the pulleys drives the transmission belt arranged on the multiple pulleys to move, and the transmission belt drives the workpiece placed on the transmission belt to move.

[0050] During installation, the device housing 2 is installed on the periphery of the device body 1, and the belt line transmission component mechanism 4, the reflective sheet front positioning component mechanism 5, the reflective sheet left and right positioning component mechanism 6, the reflective sheet lifting component mechanism 7, and the reflective sheet pressing wheel component mechanism 8 are respectively installed inside the device body 2. The reflective sheet front positioning component mechanism 5 is installed on both sides of the reflective sheet lifting component mechanism 7, and the reflective sheet left and right positioning component mechanism 6 is installed on the other two sides of the reflective sheet lifting component mechanism 7, and the two reflective sheet front positioning component mechanisms 5. The reflective sheet front positioning component mechanism 5 and the reflective sheet left and right positioning component mechanism 6 are located in the same plane and are adjacently arranged. The reflective sheet lifting component mechanism 7 is located below the reflective sheet front positioning component mechanism 5 and the reflective sheet left and right positioning component mechanism 6, and the belt line transmission component mechanism 4 is located below the reflective sheet lifting component mechanism 7.

[0051] The carrier loaded with the workpiece is transported to the feed port by the transmission belt in the belt line transmission component mechanism 4, and then the feed positioning mechanism performs position correction on the workpiece. After the position correction is completed, the transmission belt continues to send the workpiece into the back pressure area, and then the reflector front positioning component mechanism 5, the reflector left and right positioning component mechanism 6, and the reflector lifting component mechanism 7 jointly adjust and lift the workpiece to the back pressure position to wait for camera positioning. The robot back-presses the workpiece according to the preset program. The two robots are connected together by the pressure wheel plate changing arm 802 and the pressure wheel fine-tuning device 803, driving the pressure wheel 810 to perform the back pressure action at the same time. After the back pressure action is completed, the reflector lifting component mechanism 7 falls back to put the workpiece back into the carrier, and then the belt line transmission component mechanism 4 sends the carrier and the workpiece out of the equipment, thereby completing the back pressure action.

[0052] In this back-pressing action, the reflective sheet pressure wheel assembly mechanism 8 includes a manipulator base, a manipulator arm 801 installed on the manipulator base, a pressure wheel disc changing arm 802 connected to the manipulator arm 801, a pressure wheel fine-tuning device 803 installed on the other end of the pressure wheel disc changing arm 802, a pressure wheel lifting device installed on the pressure wheel fine-tuning device 803 for controlling the up and down movement, and a buffer device installed inside the pressure wheel lifting device and located at the lower end of the pressure wheel fine-tuning device.

[0053] The pressure wheel lifting device includes pressure wheel guide rails 804 installed on both sides of the pressure wheel fine-tuning device 803, guide rail sliders 805 installed on the pressure wheel guide rails 804, a pressure wheel fixing bracket 806 installed on the guide rail sliders 805, a pressure wheel fixing frame 807 installed at the lower end of the pressure wheel fixing bracket 806, two eccentric rotating shafts 808 installed on the pressure wheel fixing frame 807, a pressure wheel rotating shaft 809 installed on the eccentric rotating shaft 808, a return pressure wheel 810 installed on the periphery of the pressure wheel rotating shaft 809, and a polyurethane rubber coating layer 811 installed on the periphery of the pressure wheel 810. The buffer device includes spring plungers 812 installed at both ends of the pressure wheel fixing frame 807, a pressure wheel pressure plate 813 installed on the upper ends of the two spring plungers 812, a buffer pad 814 installed at the central position above the pressure wheel pressure plate 813, and a buffer spring 815 installed on the buffer pad 814, wherein the lower end of the buffer spring 815 is connected to the buffer pad 814, and the upper end of the buffer spring 815 is connected to the inside of the pressure wheel fine-tuning device 803.

[0054] The pressure wheel fine-tuning device is provided with a contact support rod 816, and a plurality of pressure sensing contacts 817 are provided on the contact support rod 816. The upper end of the pressure wheel fixed support 806 is provided with a contact moving plate 818 for being sensed by the pressure sensing contact 817. When the pressure wheel fixed support 806 moves up and down along the pressure wheel guide rail 804, the contact moving plate 818 provided on the pressure wheel fixed support 806 also moves up and down. The pressure sensing contact 817 senses the movement of the contact moving plate 818 at any time, and realizes dynamic real-time monitoring of the movement of the pressure wheel lifting device. The position of the return pressure wheel 810 moving up and down can be dynamically adjusted at any time to make the return pressure constant, thereby realizing the improvement of the return pressure effect of the reflective sheet after the return pressure. Compared with similar products in the prior art, it can be known that the device described in the utility model of this case also has the function of improving positioning accuracy and return pressure efficiency.

[0055] In the embodiment of the present application, the manipulator arm 801 is connected with the pressure wheel disc changing arm 802 to perform a back pressure action on the reflective sheet of the workpiece, because a contact support rod 816 is provided on the pressure wheel fine adjustment device, and a plurality of pressure sensing contacts 817 are provided on the contact support rod 816, and a contact moving plate 818 for being sensed by the pressure sensing contacts 817 is provided on the upper end of the pressure wheel fixed support 806. The contact moving plate 818 and the pressure sensing contact 817 are used in coordination with each other to detect the pressure of the back pressure wheel 810 in real time, and feedback is given to the host computer, and the downward pressure position of the back pressure wheel 810 is dynamically adjusted to ensure pressure balance and a good back pressure effect.

[0056] In the embodiments of the present application, the reflector front positioning assembly mechanism 5 and the reflector left and right positioning assembly mechanism 6 adopt mechanical positioning to ensure fixed position, facilitate back pressure, reduce the adjustment process, improve efficiency, and take into account cost optimization while ensuring the required positioning accuracy. At the same time, the structure is reliable, and the rubber-coated wheels avoid damaging the product. In the embodiments of the present application, the reflector lifting assembly mechanism 7 adopts the lifting motor 702 and the lifting screw 712 construction method, which makes the structure stable and accurate, so that the adjustment in the vertical direction achieves a high accuracy, and can well cooperate with the pressure sensing contact 817 and the signal given by the robot to adjust the position of the fed workpiece.

[0057] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the present invention is not limited by this. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention shall be within the scope of the present invention.

Claims

1. An automatic back pressure device for a display back panel reflector, comprising a device body directly placed on the ground and a device housing installed outside the device body; characterized in that: A belt line transmission assembly mechanism, a reflective sheet front positioning assembly mechanism, a reflective sheet left and right positioning assembly mechanism, a reflective sheet lifting assembly mechanism, and a reflective sheet pressure wheel assembly mechanism are arranged inside the main body of the device; the reflective sheet front positioning assembly mechanism and the reflective sheet left and right positioning assembly mechanism are located in the same plane and are arranged adjacent to each other; the reflective sheet lifting assembly mechanism is located below the reflective sheet front positioning assembly mechanism and the reflective sheet left and right positioning assembly mechanism, and the belt line transmission assembly mechanism is located below the reflective sheet assembly mechanism; The reflective sheet pressure wheel assembly mechanism includes a manipulator base, a manipulator arm mounted on the manipulator base, a pressure wheel plate changing arm connected to the manipulator arm, a pressure wheel fine-tuning device mounted on the other end of the pressure wheel plate changing arm, a pressure wheel lifting device mounted on the pressure wheel fine-tuning device for controlling up and down movement, and a buffer device mounted inside the pressure wheel lifting device and located at the lower end of the pressure wheel fine-tuning device. The pressure roller lifting device comprises pressure roller guide rails installed on both sides of the pressure roller fine-tuning device, guide rail sliders installed on the pressure roller guide rails, a pressure roller fixing bracket installed on the guide rail sliders, a pressure roller fixing frame installed at the lower end of the pressure roller fixing bracket, two eccentric shafts installed on the pressure roller fixing frame, a pressure roller shaft installed on the eccentric shaft, a return pressure roller installed on the periphery of the pressure roller shaft, and a polyurethane rubber coating layer installed on the periphery of the return pressure roller; The buffer device comprises spring plungers installed at both ends of the pressure wheel fixing frame, a pressure wheel pressing plate installed at the upper ends of the two spring plungers, a buffer pad installed at a central position above the pressure wheel pressing plate, and a buffer spring installed on the buffer pad, wherein the lower end of the buffer spring is connected to the buffer pad, and the upper end of the buffer spring is connected to the inside of the pressure wheel fine-tuning device; A contact support rod is arranged on the pressure wheel fine-tuning device, and a plurality of pressure sensing contacts are arranged on the contact support rod. A contact moving plate for being sensed by the pressure sensing contacts is arranged on the upper end of the pressure wheel fixing bracket; when the pressure wheel fixing bracket moves up and down along the pressure wheel guide rail, the contact moving plate arranged on the pressure wheel fixing bracket also moves up and down, and the pressure sensing contacts sense the movement of the contact moving plate at any time, thereby realizing dynamic and real-time monitoring of the movement of the pressure wheel lifting device.

2. According to claim 1, the automatic back pressure device for display back plate reflector is characterized in that: The front positioning assembly mechanism of the reflective sheet includes alignment blocks arranged at both ends, a front positioning bracket installed between the alignment blocks at both ends, a front positioning fixing block installed on the front positioning bracket and located in the middle position, a front positioning clamping assembly installed on the front positioning fixing block and located on the other side of the front positioning bracket, and a plurality of front positioning cylinders installed below the front positioning fixing block and arranged at intervals.

3. The automatic back pressure device for display back plate reflector according to claim 1, characterized in that: The left and right positioning assembly mechanism of the reflective sheet includes left and right positioning fixing mechanisms arranged at both ends, left and right positioning brackets installed between the left and right positioning fixing mechanisms at both ends, left and right positioning cylinder fixing plates installed on the left and right positioning brackets and located at the middle position, left and right positioning clamping assemblies installed on the left and right positioning cylinder fixing plates and located on the other side of the left and right positioning brackets, and multiple left and right positioning alignment roller mechanisms installed inside the left and right positioning cylinder fixing plates.

4. The automatic back pressure device for display back panel reflector according to claim 1, characterized in that: The reflector lifting assembly mechanism includes a lifting motor bracket, a lifting electric motor installed at one end of the lifting motor bracket, a transmission rod mechanism installed at the other end of the lifting motor bracket, and lifting clamping positioning plate mechanisms respectively installed at both ends of the transmission rod mechanism; the transmission rod mechanism includes a transmission rod connected to the lifting motor at one end, a transmission rod fixing seat installed at the other end of the transmission rod, and a transmission baffle installed on the transmission rod and located on one side of the transmission rod fixing seat; The jacking clamping positioning plate mechanism comprises a jacking mounting plate installed at one end of a jacking motor bracket and an end face of a transmission rod fixing seat, a jacking guide rail fixedly installed on both sides of the jacking mounting plate, a jacking guide rail slider installed on the jacking guide rail and capable of sliding along the jacking guide rail, a jacking movable plate installed on the jacking guide rail slider, a jacking movable slider installed on the back of the jacking movable plate, a screw bearing seat installed on the upper end of the jacking mounting plate, respectively passing through the screw bearing seat, the jacking movable slider, and the jacking screw to the upper end face of the jacking motor bracket, and a jacking support frame installed between the jacking movable plates at both ends for placing a workpiece that needs to be jacked and moved; When the lifting screw rotates, the lifting moving slider is driven to move upward or downward along the lifting screw, and the lifting guide slider is driven to move upward or downward along the lifting guide rail; the lifting support frame drives the workpiece placed on the lifting support frame to move.

5. The automatic back pressure device for display back panel reflector according to claim 1, characterized in that: The belt line transmission assembly mechanism includes a transmission assembly bracket, a belt pulley conveying mechanism respectively installed on both sides of the transmission assembly bracket, a transmission power assembly mechanism installed at one end of the transmission assembly bracket for controlling the movement of the belt pulley conveying mechanism, a plurality of photoelectric sensor assemblies arranged on one side of the transmission assembly bracket, and a plurality of workpieces placed on the belt pulley conveyor; The pulley conveying mechanism includes a plurality of pulley bearing brackets mounted on the inner side wall of the transmission component bracket, a pulley mounted on the pulley bearing bracket, and a transmission belt connecting the plurality of pulleys together; The transmission power assembly mechanism includes a power mounting plate placed on one end of the transmission assembly bracket, a motor support mounted on the back of the power mounting plate, a belt assembly servo motor mounted on the motor support, a belt shaft mounted on the belt assembly servo motor, a belt driving wheel mounted on the belt shaft, a belt rotating shaft mounted between the belt pulleys on both sides, and a belt driven rotating wheel mounted on the belt rotating shaft; the belt pulley on one side and the belt driven rotating wheel are simultaneously mounted on the belt rotating shaft; the belt driving rotating wheel and the belt driven rotating wheel are meshed with each other; When in use, the servo motor of the belt assembly drives the belt driving pulley arranged on the belt rotating shaft to rotate, and the belt driving pulley drives the belt driven pulley to rotate, the belt driven pulley drives the belt rotating shaft to rotate, the belt rotating shaft drives the pulleys arranged on both sides of the transmission assembly bracket to rotate, the rotation of the pulleys drives the transmission belt arranged on the multiple pulleys to move, and the transmission belt drives the workpiece placed on the transmission belt to move.

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