Sheet conveying device

Abstract

The invention relates to the technical field of sheet conveying, and particularly discloses a sheet conveying device which comprises an adsorption part arranged on a rack, the adsorption part comprises a suction nozzle, and a cleaning part and a driving part are arranged in the suction nozzle; the driving piece comprises a rotating sleeve rotationally assembled in the suction nozzle and blades arranged on the side face of the rotating sleeve. The cleaning part comprises a bearing part assembled in the rotating sleeve in an up-down sliding mode, a cleaning roller rotationally connected with the bearing part and a first rotating part connected with the cleaning roller and the bearing part, the first rotating part drives the cleaning roller to rotate, the bearing part is in threaded fit with the rotating sleeve, and the cleaning roller is arranged in the rotating sleeve; when the suction nozzle does not adsorb the sheet, airflow formed in the suction nozzle passes through the blades and drives the rotating sleeve to rotate, and after the rotating sleeve rotates to drive the cleaning roller to move to the outside of the rotating sleeve, the cleaning roller rotates along with the rotating sleeve to clean impurities on the surfaces of the sheet and the suction nozzle; the sheet conveying device has the effect that impurities on the sheet are cleaned so that the sheet can be conveniently adsorbed by the suction nozzle.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet material conveying, and in particular to a sheet material conveying device. Background Art

[0002] Sheet material refers to a thin flat material, such as film sheets made of plastic. During the processing of the sheet material, it is usually necessary to use a suction cup to place the stacked sheets one by one on a conveying device, and the conveying device is used to transport the sheets to the next process for processing.

[0003] The patent document with announcement number CN107758280B discloses a sheet loading system, including a sheet placing rack, a sheet picking device, and a conveying device. The sheet placing rack includes a bottom plate for placing a sheet stack on the bottom plate. The sheet picking mechanism includes a suction cup, and the suction port of the suction cup faces downward and is close to the top of the sheet stack, and is used to suck the sheet from the top of the sheet stack. The sheet picking mechanism also includes a transfer device for transferring the sheet sucked by the suction cup to the conveying device. The conveying device is used to receive the sheet transferred by the transfer device and transfer the sheet to a predetermined position. By arranging the sheet placing rack, the sheet picking device, and the conveying device, and by arranging the transfer device on the sheet picking device, the sheet sucked from the sheet placing rack by the sheet picking mechanism is transferred to the conveying device.

[0004] However, this solution still has the following problems. When the sheet is conveyed by the suction cup, the suction cup adsorbs the sheet relying on the closed space formed between it and the surface of the sheet. If there are impurities such as dust, oil, particles, etc. on the surface of the sheet or contaminants on the suction nozzle, the suction cup will not be in sufficient contact with the sheet and an effective vacuum cannot be formed. Alternatively, the impurities will prevent the suction cup from fitting tightly to the sheet, reducing the ability to maintain the vacuum negative pressure, and ultimately leading to adsorption failure or falling off midway. In addition, other existing technologies use multiple suction cups to adsorb the sheet at the same time, but some of the suction nozzles may still be unable to adsorb the sheet due to impurities, making it easy for the sheet to bend, deform, or even be damaged due to uneven force when transferring the sheet. In addition, when the sheet is placed on the conveying device, it is easy for deviations to occur due to bending, affecting subsequent processing. ‌‌ Summary of the invention

[0005] The present invention provides a sheet material conveying device, aiming to solve the problem in the related art that a suction nozzle cannot effectively absorb the sheet material due to impurities on the surface of the sheet material.

[0006] The sheet material conveying device of the present invention comprises an adsorption member arranged on a frame for transferring sheets, the adsorption member comprises a suction nozzle for adsorbing sheets, and a cleaning member and a driving member are arranged in the suction nozzle; The driving member includes: a rotating sleeve rotatably assembled in the suction nozzle, and a blade obliquely arranged on the side of the rotating sleeve; The cleaning member comprises: a receiving portion slidably assembled in the rotating sleeve, a cleaning roller rotatably connected to the receiving portion, and a rotating member 1 connected to the cleaning roller and the receiving portion, the rotating member 1 is used to drive the cleaning roller to rotate to a horizontal state, the receiving portion is threadedly matched with the rotating sleeve, and the cleaning roller is arranged in the rotating sleeve; When the suction nozzle does not suck the sheet, the airflow formed inside it passes through the blades and drives the rotating sleeve to rotate. The rotation of the rotating sleeve drives the receiving part and the cleaning roller to move downward. After the cleaning roller moves to the outside of the rotating sleeve, the rotating part drives the cleaning roller to rotate and is between the sheet and the suction nozzle. The cleaning roller rotates with the rotating sleeve to clean impurities on the surface of the sheet and the suction nozzle.

[0007] The effect is that the adsorption part adsorbs the sheet to convey the sheet. When the suction nozzle does not adsorb the sheet, there is a gap between it and the sheet. At the same time, the specified negative pressure is not reached inside the suction nozzle. The suction nozzle continues to draw air, so that an airflow is formed inside the suction nozzle. The airflow passes through the blades to drive the blades to rotate, and the blades drive the rotating sleeve to rotate. The rotation of the rotating sleeve drives the receiving part to move downward, and the receiving part drives the cleaning roller to move downward and gradually moves to the outside of the rotating sleeve. Then the rotating part drives the cleaning roller to rotate between the sheet and the suction nozzle. At this time, the suction nozzle continues to draw air, and the rotating sleeve still keeps rotating, driving the cleaning roller to rotate accordingly. The rotating cleaning roller covers the area on the sheet corresponding to the suction nozzle, and cleans impurities on the surface of the sheet and the suction nozzle, so that the suction nozzle can stably adsorb on the sheet, thereby improving the stability of the sheet during transportation.

[0008] Preferably, the adsorption component includes a mounting plate for installing the suction nozzle, on which a sliding rod and a fixed sleeve are assembled, the fixed sleeve and the sliding rod are coaxially arranged in the suction nozzle, the sliding rod is arranged inside the fixed sleeve, the receiving part is slidably matched with the sliding rod, and the rotating sleeve is rotatably matched with the fixed sleeve.

[0009] The effect is that the receiving part and the sliding rod are slidably matched, and the sliding rod limits the moving direction of the receiving part, so that the receiving part can only move up and down in the rotating sleeve, so that when the rotating sleeve rotates, it can drive the receiving part to move up and down. At the same time, the rotating sleeve cooperates with the fixed sleeve so that the rotating sleeve rotates under the action of the blades.

[0010] Preferably, the receiving part includes a slider, an intermediate block and an elastic member, the slider is slidably matched with the slide rod, the cleaning roller is connected to the intermediate block, one end of the elastic member is connected to the slider, and the other end is rotatably connected to the intermediate block, the slider is threadedly matched with the rotating sleeve, the intermediate block is slidably assembled in the rotating sleeve, the cleaning roller rotates with the rotating sleeve through the intermediate block, and when the cleaning roller cleans impurities, the intermediate block stops moving, the slider continues to move downward and compresses the elastic member.

[0011] The effect is that when the blade drives the rotating sleeve to rotate, the rotation of the rotating sleeve drives the slider to move downward, and the slider drives the middle block to move downward through the elastic member 1 until it drives the cleaning roller to move to the outside of the rotating sleeve. When the cleaning roller rotates to a horizontal state, that is, when the cleaning roller is between the sheet and the suction nozzle, the cleaning roller abuts against the sheet. At this time, the middle block stops moving, but the cleaning roller is driven to rotate with the rotation of the rotating sleeve to clean impurities. At the same time, the rotating sleeve drives the slider to move downward close to the middle block and compress the elastic member 1. Before the elastic member 1 is not completely compressed, the cleaning roller completes the cleaning of the impurities. By arranging the elastic member 1 between the middle block and the slider, the slider can move relative to the middle block so that the cleaning roller can clean the impurities.

[0012] Preferably, a rotating part 2 is provided in the fixed sleeve, and the rotating part 2 is connected to the rotating sleeve. When the rotating sleeve rotates to drive the cleaning roller to move downward, the rotating part 2 is twisted. When the vacuum is stopped, the airflow inside the suction nozzle disappears, and the rotating part 2 drives the rotating sleeve to rotate in the opposite direction to drive the cleaning roller to move into the rotating sleeve.

[0013] The effect is that when the rotating sleeve rotates and moves downward, the rotating part 2 is twisted and subjected to force. After the sheet and the suction nozzle are cleaned, the suction nozzle stops sucking air, the airflow inside the suction nozzle disappears, the blades stop rotating, and the rotating part 2 drives the rotating sleeve to rotate in the opposite direction, and then drives the slider to move upward, and then drives the slider and the middle block to move to the initial position, so that the cleaning roller moves into the rotating sleeve again, reducing the phenomenon of the cleaning roller interfering with the suction nozzle's adsorption of the sheet, and at the same time adjusting the cleaning roller to the initial position, so that the suction nozzle and the sheet can be cleaned when the suction nozzle cannot adsorb the sheet next time.

[0014] Preferably, the suction nozzle includes a sleeve 1 and a sleeve 2, the sleeve 1 is connected to the mounting plate, the sleeve 2 is slidably matched with the sleeve 1, the suction head of the suction nozzle is arranged on the sleeve 2, and a spring member 2 connecting the sleeve 2 and the sleeve 1 is arranged between the sleeve 2 and the sleeve 1, the spring member 2 is used to drive the sleeve 2 to slide downward away from the sleeve 1, and when the cleaning roller rotates to a horizontal state, it cooperates with the suction head to drive the sleeve 2 to slide upward, so that the cleaning roller is between the suction nozzle and the sheet.

[0015] The effect is that after the cleaning roller moves to the outside of the rotating sleeve, it cooperates with the suction nozzle during the process of rotating to a horizontal state, driving the sliding sleeve 2 to move upward until the cleaning roller is between the suction nozzle and the sheet. Through the sliding cooperation between the sliding sleeve 2 and the sliding sleeve 1, the phenomenon of the suction nozzle interfering with the cleaning roller entering between the suction nozzle and the sheet is reduced. At the same time, the cleaning roller is clamped between the suction nozzle and the sheet, so that the cleaning roller is in full contact with the sheet and the suction nozzle, thereby improving the effect of removing impurities.

[0016] Preferably, the frame is provided with a loading assembly, a conveying assembly, and a connecting frame. The loading assembly is used to place stacked sheets. The connecting frame slides left and right between the loading assembly and the conveying assembly. The connecting frame is arranged above the loading assembly and the conveying assembly. A lifting member is provided on the connecting frame. The lifting member is connected to the adsorption member to drive the adsorption member to move up and down.

[0017] The effect is that the connecting frame moves back and forth between the loading assembly and the conveying assembly, and at the same time the lifting member drives the adsorption member to move up and down to adsorb the sheet and place the sheet on the conveying assembly, thereby realizing the transfer of the sheet.

[0018] Preferably, a sensor is provided in the suction nozzle, and the sensor is used to detect the air pressure inside the suction nozzle. A controller is provided on the mounting plate, and the sensor is electrically connected to the controller. A power component is provided between the mounting plate and the lifting component, and the power component is used to drive the mounting plate to rotate to change the position of the suction nozzle to adsorb the sheet. When the suction nozzle still cannot adsorb the sheet after the cleaning roller cleans the impurities, the controller controls the power component to rotate the mounting plate.

[0019] The effect is that when the suction nozzle does not suck the sheet, its internal negative pressure does not reach the specified value, and the sensor sends a signal to the controller, that is, when it detects that the internal negative pressure of the suction nozzle does not reach the specified value, it is considered that the suction nozzle is not sucked on the sheet. When it is detected for the first time that the specified negative pressure value is not reached, the vacuum pump continues to pump air, and the rotation of the sleeve drives the cleaning roller to move to the outside of the sleeve to clean impurities. After cleaning, the sheet is adsorbed by the suction nozzle again. If it is still not detected that the negative pressure value has not been reached after cleaning, that is, the controller has received two consecutive signals, which means that after cleaning the sheet and the suction nozzle, it is still unable to adsorb. At this time, the controller controls the power part to start, and the power part drives the mounting plate to rotate, changes the position of the suction nozzle to adsorb the sheet, and adsorbs the sheet again. Repeat the above operation. If the controller still receives the signal from the sensor twice in a row, it means that after changing the position and cleaning the suction nozzle and the sheet, it is still unable to adsorb. At this time, the suction nozzle may be damaged. The suction nozzle is replaced or the machine is shut down for debugging so as to replace the damaged suction nozzle in time. By setting the sensor and the controller, the damaged suction nozzle can be found in time to avoid the cleaning roller repeatedly cleaning the suction nozzle and the sheet, affecting the feeding efficiency.

[0020] Preferably, two groups of mounting plates and suction nozzles are arranged at intervals, each group of mounting plates is provided with two suction nozzles, and the suction nozzles on the two groups of mounting plates are evenly distributed.

[0021] The effect is that multiple suction nozzles are provided to suck the sheet at the same time, thereby improving the stability of the sheet during transportation.

[0022] Preferably, a feeding assembly and an adsorption member are provided on both sides of the conveying assembly, and the two groups of adsorption members of the conveying assembly alternately place the sheets on the conveying assembly.

[0023] The effect is that, through the feeding components and adsorption components on both sides of the conveying component, the two groups of adsorption components are alternately fed, and the sheets are alternately placed on the conveying component, thereby improving the conveying efficiency of the sheets.

[0024] Preferably, a through hole connected to the suction nozzle is opened in the mounting plate, a suction pipe connected to the through hole is arranged on the mounting plate, and the vacuum pump sucks air from the suction nozzle through the suction pipe and the through hole.

[0025] The effect is that the vacuum pump draws air from the suction nozzle through the suction tube, so that the suction nozzle is in a negative pressure state so that the suction nozzle can adsorb the sheet. At the same time, when the sheet is not adsorbed, airflow can be formed inside the suction nozzle to drive the rotating sleeve to rotate and clean the sheet and the suction nozzle.

[0026] Beneficial effects: 1. The present invention arranges a rotating sleeve in the suction nozzle, and arranges a receiving part and a cleaning roller in the rotating sleeve. When the suction nozzle is not adsorbed on the sheet, an airflow is formed inside the suction nozzle. The airflow drives the rotating sleeve to rotate through the blades. The rotation of the rotating sleeve drives the receiving part and the cleaning roller to move, so that the cleaning roller moves to the outside of the rotating sleeve. At the same time, the rotating member drives the cleaning roller to rotate between the suction nozzle and the sheet. The cleaning roller cleans the sheet and the suction nozzle as the rotating sleeve rotates, so that the suction nozzle is adsorbed on the sheet, thereby improving the stability of the sheet during transportation.

[0027] 2. An elastic member 1 is arranged between the slider and the middle block. After the cleaning roller rotates to a horizontal state and contacts the sheet, the middle block stops moving. When the rotating sleeve rotates through the middle block to drive the cleaning roller to rotate, the slider continues to move and presses the elastic member 1, so that the slider can move a certain distance relative to the middle block, and the sheet is cleaned before the elastic member 1 is not completely compressed, avoiding the phenomenon of interference with the movement of the slider and the rotation of the rotating sleeve after the cleaning roller contacts the sheet, thereby improving the stability of the entire structure operation.

[0028] 3. The suction nozzle is provided with a slide sleeve 1 and a slide sleeve 2, so that when the cleaning roller rotates and cooperates with the suction nozzle, the slide sleeve 2 can be driven by the suction nozzle to slide upward, and after the cleaning roller contacts the sheet, it continues to move, and the cleaning roller rotates under the action of the sheet and the rotating member 1, and the cleaning roller cooperates with the suction nozzle to drive the suction nozzle to move upward, so that the suction nozzle moves a certain distance relative to the sheet until the cleaning roller rotates to between the suction nozzle and the sheet, and the cleaning roller and the sheet are cleaned simultaneously when the cleaning roller rotates, and the suction nozzle keeps in contact with the cleaning roller under the action of the elastic member 2, so as to improve the cleaning effect of the sheet and the suction nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0030] Figure 2 is a side view of an embodiment of the present invention.

[0031] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0032] Figure 4Schematic diagram of the structure of the adsorption member in the embodiment of the present invention.

[0033] Figure 5 Schematic diagram of the structure of the suction nozzle in the embodiment of the present invention.

[0034] Figure 6 It is a schematic diagram of the structure of a cleaning member in an embodiment of the present invention.

[0035] Figure 7 yes Figure 6 A magnified schematic diagram of point B in the middle.

[0036] Figure 8 It is a partial exploded schematic diagram of a cleaning roller and a receiving portion in an embodiment of the present invention.

[0037] Fig. 9 It is a schematic diagram of the state when the cleaning roller is located between the suction nozzle and the sheet in an embodiment of the present invention.

[0038] Reference numerals: 01. Sheet; 1. Frame; 2. Conveying assembly; 3. Loading assembly; 31. Loading rack; 32. Push piece; 33. Push plate; 34. Stop rod; 4. Connecting frame; 5. Adsorption piece; 51. Mounting plate; 511. Through hole; 512. Suction tube; 52. Suction nozzle; 521. Sliding sleeve 1; 522. Sliding sleeve 2; 523. Elastic piece 2; 6. Lifting piece; 7. Cleaning piece; 71. Sliding rod; 72. Receiving part; 721. Sliding block; 722. Middle block; 723. Elastic piece 1; 724. Give way groove; 73. Cleaning roller; 74. Rotating piece 1; 8. Driving piece; 81. Fixed sleeve; 82. Rotating sleeve; 83. Blade; 84. Rotating piece 2; 9. Connecting ring; 91. Power piece. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] like Figures 1 to 9 As shown, the sheet conveying device of the present invention includes: a conveying component 2 for conveying sheets 01, a loading component 3 arranged on one side of the conveying component 2 and used for feeding, and a transfer component slidably assembled between the conveying component 2 and the loading component 3, the conveying component 2 is configured as a conveyor belt, and a plurality of sheets 01 are stacked in the loading component 3. The transfer component reciprocates between the loading component 3 and the conveying component 2, and the sheets 01 in the loading component 3 are placed one by one on the conveying component 2 for conveying, so as to perform subsequent processing on the sheets 01.

[0041] Reference Figures 2 to 7The transfer component includes: a connecting frame 4 slidably assembled on the frame 1, an adsorbent 5 arranged on the connecting frame 4, a lifting component 6 arranged between the connecting frame 4 and the adsorbent 5, a control component connected to the adsorbent 5, a cleaning component 7 arranged on the adsorbent 5, and a driving component 8. A cylinder is arranged on the frame 1, and the output end of the cylinder is connected to the connecting frame 4. The cylinder drives the connecting frame 4 to move back and forth between the feeding component 3 and the conveying component 2 through the extension and contraction of the piston rod. The adsorbent 5 is used to adsorb the sheet 01, the lifting component 6 drives the adsorbent 5 to move up and down, the control component adjusts the position of the adsorbent 5 to adsorb the sheet 01, and the driving component 8 is connected to the cleaning component 7. When the surface of the sheet 01 is affected by the presence of impurities that affect the adsorption of the adsorbent 5, the driving component 8 drives the cleaning component 7 to clean the impurities so that the adsorbent 5 can adsorb the sheet 01.

[0042] Reference Figures 2 to 5 The adsorption member 5 includes: a mounting plate 51 connected to the lifting member 6, a suction nozzle 52 arranged below the mounting plate 51, a through hole 511 is opened in the mounting plate 51, the through hole 511 is connected to the suction nozzle 52, a suction pipe 512 is arranged on the mounting plate 51, the suction pipe 512 is connected to the suction nozzle 52 through the through hole 511, and the suction pipe 512 is connected to the vacuum pump. After the suction nozzle 52 contacts the sheet 01, the vacuum pump evacuates air through the suction pipe 512 and the through hole 511, so that the suction nozzle 52 is in a negative pressure state, and the sheet 01 is adsorbed. Two groups of mounting plates 51 and suction nozzles 52 are arranged at intervals, and two suction nozzles 52 are arranged on each group of mounting plates 51, so that the multiple suction nozzles 52 are evenly distributed in the horizontal plane, and the sheet 01 is adsorbed by multiple suction nozzles 52, thereby improving the stability when adsorbing the sheet 01.

[0043] Reference Figures 5 to 8 The cleaning member 7 comprises: a slide bar 71 connected to the mounting plate 51, a receiving portion 72 slidably mounted on the outside of the slide bar 71, a cleaning roller 73 arranged at the bottom of the receiving portion 72, and a rotating member 74 arranged between the cleaning roller 73 and the receiving portion 72. The slide bar 71 is coaxially arranged with the suction nozzle 52, the cleaning roller 73 rotates with the receiving portion 72, the rotating member 74 is arranged as a torsion spring, the two ends of the torsion spring are respectively connected to the cleaning roller 73 and the receiving portion 72, the rotating member 74 is used to drive the cleaning roller 73 to rotate to a horizontal state, and a wiping layer is arranged on the outside of the cleaning roller 73, and the wiping layer is used to wipe impurities such as dust or oil. The cleaning member 7 is arranged in the driving member 8. The wiping layer is arranged as a sponge cover. After the cleaning roller 73 rotates to a horizontal state, the wiping layer contacts the sheet 01 and the suction nozzle 52 through the sponge cover to clean them. At the same time, the sponge cover is arranged on the outside of the cleaning roller 73, which is convenient for replacing the sponge cover after long-term use.

[0044] In the initial state, the cleaning roller 73 is in the driving member 8 and is in a vertical state. When the suction nozzle 52 does not absorb the sheet 01, the driving member 8 drives the receiving portion 72 to move downward, and the receiving portion 72 drives the cleaning roller 73 to move to separate from the driving member 8. At the same time, the cleaning roller 73 moves to be close to the sheet 01. Under the action of the rotating member 74, the cleaning roller 73 rotates to a horizontal state. Fig. 9 As shown, it is located between the suction nozzle 52 and the sheet 01 at the same time, and then the driving member 8 drives the cleaning roller 73 to rotate to clean the position on the sheet 01 corresponding to the suction nozzle 52 and the impurities on the suction nozzle 52, so as to subsequently adsorb the sheet 01.

[0045] Reference Figures 5 to 8 The receiving portion 72 includes: a slider 721 that slides up and down with the slide rod 71, an intermediate block 722 connected to the cleaning roller 73, and an elastic member 723. The slider 721 and the intermediate block 722 are arranged at intervals up and down, the intermediate block 722 is arranged below the slider 721, the elastic member 723 is arranged between the slider 721 and the intermediate block 722, the elastic member 723 is set as a spring, and the two ends of the spring are respectively connected to the slider 721 and the intermediate block 722, the slider 721 cooperates with the driving member 8, and the intermediate block 722 is assembled on the driving member 8 for sliding up and down.

[0046] The driving member 8 drives the slider 721 to move downward, and the slider 721 drives the middle block 722 and the cleaning roller 73 to move through the elastic member 723. After the cleaning roller 73 rotates to a horizontal state, the rotating sleeve 82 drives the cleaning roller 73 to rotate with the rotating sleeve 82 through the middle block 722 to clean the sheet 01. The cleaning roller 73 abuts against the sheet 01, and the middle block 722 stops moving. When the cleaning roller 73 rotates to clean impurities, the rotating sleeve 82 drives the slider 721 to continue to move downward close to the middle block 722 and compress the elastic member 723. Before the elastic member 723 is not completely compressed, the cleaning of the sheet 01 and the suction nozzle 52 is completed, the vacuum pump stops pumping air, the rotating sleeve 82 stops rotating, the rotating member 74 drives the rotating sleeve 82 to move in the opposite direction and reset, and at the same time the elastic member 723 resets, so that the distance between the middle block 722 and the slider 721 returns to the initial length for the next cleaning.

[0047] Reference Figure 6 and Figure 7 A connecting ring 9 is rotatably provided on one side of the middle block 722 close to the elastic member 723. The connecting ring 9 is coaxially provided with the rotating sleeve 82. The elastic member 723 is connected with the connecting ring 9, that is, the elastic member 723 is rotatably matched with the middle block 722 through the connecting ring 9, so that when the slider 721 moves up and down, the middle block 722 can rotate while moving with the rotating sleeve 82, thereby reducing the phenomenon that the elastic member 723 interferes with the rotation of the middle block 722.

[0048] Reference Figure 6 and Figure 7A clearance groove 724 is provided above the middle block 722, and the end of the slide rod 71 passes through the slider 721 and extends into the clearance groove 724, and the slide rod 71 and the inner wall of the clearance groove 724 are spaced apart, so that the slide rod 71 and the middle block 722 do not contact, thereby reducing the phenomenon of the slide rod 71 and the slider 721 matching the middle rod.

[0049] Reference Figures 5 to 8 The driving member 8 includes: a fixed sleeve 81 fixedly connected to the mounting plate 51, a rotating sleeve 82 rotatably matched with the fixed sleeve 81, a blade 83 arranged on the outside of the rotating sleeve 82, and a rotating member 84 arranged in the fixed sleeve 81. The fixed sleeve 81 is coaxially arranged on the outside of the sliding rod 71, and the rotating sleeve 82 cooperates with the lower end of the fixed sleeve 81. A thread groove is provided on the inner wall of the rotating sleeve 82, and the receiving portion 72 is threadedly matched with the rotating sleeve 82 through the thread groove, that is, a thread matching the thread groove is provided on the side of the sliding block 721, and the intermediate block 722 is slidably assembled in the rotating sleeve 82 up and down. A plurality of blades 83 are arranged around the rotating sleeve 82, and the blades 83 are inclined. The rotating member 84 is arranged as a torsion spring, and the torsion spring sleeve is arranged on the outside of the sliding rod 71. One end of the torsion spring is connected to the inner wall of the fixed sleeve 81, and the other end is connected to the rotating sleeve 82.

[0050] In the initial state, the cleaning roller 73 is arranged in the rotating sleeve 82. When the suction nozzle 52 does not adsorb the sheet 01, the vacuum pump continuously exhausts the suction nozzle 52 in order to achieve a specified negative pressure in the suction nozzle 52, forming an airflow on the inner wall of the suction nozzle 52. The airflow passes through the inclined blades 83 to drive the rotating sleeve 82 to rotate. The rotation of the rotating sleeve 82 drives the slider 721 to move downward, and then the position of the cleaning roller 73 is adjusted until the cleaning roller 73 moves to the outside of the rotating sleeve 82, so as to clean the impurities on the sheet 01 and the suction nozzle 52. At the same time, when the rotating sleeve 82 rotates, the rotating part 84 is driven to rotate and be subjected to force. After the cleaning roller 73 wipes the sheet 01, the suction nozzle 52 stops exhausting air. At this time, the blade 83 is not subjected to force, and the rotating sleeve 82 rotates in the opposite direction under the action of the rotating part 84, thereby driving the slider 721 and the middle block 722 to move upward, and at the same time driving the cleaning roller 73 to move into the rotating sleeve 82 for resetting, so as to clean the sheet 01 again. At the same time, when exhausting air again, it is convenient for the suction nozzle 52 to adsorb the position cleaned and wiped by the cleaning roller 73.

[0051] Reference Figure 5 and Fig. 9 The suction nozzle 52 includes a sleeve 1 521 connected to the mounting plate 51, a sleeve 2 522 slidably matched with the sleeve 1 521 up and down, the sleeve 2 522 is connected to the suction head of the suction nozzle 52, and a spring 2 523 is arranged between the sleeve 2 522 and the sleeve 1 521. The spring 2 523 is arranged as a spring, and the two ends of the spring are respectively connected to the sleeve 1 521 and the sleeve 2 522. The spring 2 523 is used to drive the sleeve 2 522 to move downward.

[0052] When the suction nozzle 52 does not suck the sheet 01, the cleaning roller 73 moves between the suction nozzle 52 and the sheet 01. When the cleaning roller 73 contacts the suction head, the suction head drives the second sliding sleeve 522 to move upward, and at the same time compresses the second elastic member 523, so that the cleaning roller 73 moves between the suction head and the sheet 01, reducing the phenomenon that the suction head interferes with the cleaning roller 73 wiping the sheet 01. After the cleaning roller 73 moves back into the rotating sleeve 82, the second sliding sleeve 522 moves to the initial position under the action of the second elastic member 523.

[0053] In order to ensure the suction effect of the suction nozzle 52 when sucking the sheet 01, a sealing ring is arranged between the second sliding sleeve 522 and the second sliding sleeve 522, so that the second sliding sleeve 522 can maintain sealing when sliding relative to the first sliding sleeve 521, thereby reducing the leakage phenomenon in the sliding cooperation between the two.

[0054] Reference Figure 2 and Figure 3 , the lifting member 6 is configured as a cylinder, which is disposed on the connecting frame 4, and the piston rod of the cylinder is connected to the mounting plate 51, and the suction nozzle 52 is adjusted up and down by the cylinder. When the connecting frame 4 moves to the loading assembly 3, the lifting member 6 drives the suction nozzle 52 downward to the loading assembly 3 to absorb the sheet 01, and then drives the suction nozzle 52 upward after absorbing the sheet 01, and the connecting frame 4 drives the suction nozzle 52 to move above the conveyor belt, and the lifting member 6 drives the suction nozzle 52 downward to place the sheet 01 on the conveyor belt, and finally drives the suction nozzle 52 upward again, and the connecting frame 4 moves to the loading assembly 3, and repeats the above operation to place the sheets 01 one by one on the conveyor belt.

[0055] The control component includes: a sensor arranged inside the suction nozzle 52, a controller arranged on the mounting plate 51, and a power component 91 connected to the mounting plate 51. The power component 91 is arranged as a motor, and the output shaft of the motor is vertically downward. The output end of the lifting component 6 is connected to the power component 91, and the output end of the power component 91 is connected to the mounting plate 51, which is used to drive the mounting plate 51 to rotate. The sensor is arranged as a pressure sensor, which is used to detect the air pressure inside the suction nozzle 52. The sensor is electrically connected to the signal receiving end of the controller, and the control end of the controller is electrically connected to the switch of the power component 91 and the switch of the vacuum pump respectively, so as to control the power component 91 and the vacuum pump.

[0056] After the cleaning roller 73 cleans the sheet 01, it is adsorbed by the suction nozzle 52. If the suction nozzle 52 fails to adsorb on the sheet 01 again, the sensor detects that the negative pressure value inside the suction nozzle 52 does not reach the specified range, and sends a signal to the controller. The controller stops the vacuum pump and controls the power part 91 to drive the mounting plate 51 to rotate, so that the suction nozzle 52 corresponds to a different position on the sheet 01, and adsorbs the sheet 01 again. If it still fails to adsorb, the machine is stopped to replace the corresponding suction nozzle 52.

[0057] After receiving two consecutive signals from the sensor, the controller controls the power part 91 to rotate. When the sensor detects the signal for the first time, the vacuum pump continues to pump air to clean the sheet 01 and the suction nozzle 52 through the cleaning roller 73. When the signal is received for the second time, it means that the suction nozzle 52 still fails to adsorb after cleaning. At this time, the controller controls the power part 91 to rotate and change the adsorption position to determine whether the suction nozzle 52 is damaged and cannot adsorb. If it still fails to adsorb, the suction nozzle 52 is replaced or the machine is shut down for debugging.

[0058] Reference Figures 1 to 3 The feeding assembly 3 includes: a feeding frame 31, a push piece 32 installed on the feeding frame 31, a push plate 33 arranged at the output end of the push piece 32, and a stopper 34 arranged on the feeding frame 31. The stopper 34 is arranged above the feeding frame 31. There are multiple stopper 34, and the multiple stopper 34 are enclosed to form a block for stacked sheets 01 to prevent the stacked sheets 01 from falling. The push piece 32 is set as a cylinder, and the push piece 32 drives the push plate 33 to move up and down. The push plate 33 is set between the multiple stopper bars 34. The stacked sheets 01 are placed on the placement plate. The push piece 32 drives the stacked sheets 01 to move upward through the push plate 33, and cooperates with the adsorption component 5 to load the materials.

[0059] Reference Figure 1 and Figure 2 A set of loading components 3 and transfer components are arranged on both sides of the conveyor belt. Each set of loading components 3 and transfer components is arranged in multiple along the conveying direction of the conveyor belt. Multiple loading components 3 and multiple transfer components are arranged in one-to-one correspondence. When loading, the two sets of transfer components alternately place the sheet 01 on the conveyor belt to improve the loading efficiency of the sheet 01.

[0060] The implementation principle of the present invention is as follows: during loading, the connection frame 4 drives the suction nozzle 52 to move above the stacked sheet 01, and the lifting member 6 drives the suction nozzle 52 to move to the sheet 01 to adsorb the sheet 01. After adsorbing the sheet 01, the lifting member 6 drives the suction nozzle 52 to move upward to the initial position, and the connection frame 4 moves horizontally to above the conveyor belt, and the lifting member 6 drives the suction nozzle 52 to move downward again to place the sheet 01 on the conveyor belt. At the same time, the suction nozzle 52 stops adsorbing the sheet 01, so that the sheet 01 moves with the conveyor belt, and the sheet 01 is transported to the next process for processing through the conveyor belt. Repeat the above operation, and place the sheets 01 stacked in the loading component 3 one by one on the conveyor belt for loading.

[0061] When there are impurities at the position where the sheet 01 is adsorbed or on the suction nozzle 52, which causes the suction nozzle 52 to be unable to adsorb on the sheet 01, the interior of the suction nozzle 52 does not reach the specified negative pressure value, and the vacuum pump continues to pump air to form an airflow inside the suction nozzle 52. The airflow passes through the inclined blade 83 to drive the blade 83 to rotate, and the blade 83 drives the rotating sleeve 82 to rotate. The rotation of the rotating sleeve 82 drives the receiving part 72 to slide downward relative to the sliding rod 71, and the receiving part 72 drives the cleaning roller 73 to move. After the cleaning roller 73 moves to the outside of the rotating sleeve 82, the rotating member 74 drives the cleaning roller 73 to move. The roller 73 rotates to a horizontal state, and at the same time, the cleaning roller 73 contacts the suction nozzle 52, driving the sliding sleeve 2 522 to slide upward, so that the cleaning roller 73 is between the suction nozzle 52 and the sheet 01. The cleaning roller 73 rotates with the rotating sleeve 82 under the action of the middle block 722 to clean the impurities on the sheet 01 and the suction nozzle 52. After cleaning, the air suction is stopped, the blade 83 stops rotating, and the rotating sleeve 82 rotates in the opposite direction under the action of the rotating member 2 84, driving the receiving part 72 to move upward until the cleaning roller 73 moves into the rotating sleeve 82 again and is retracted.

[0062] In addition, as the cleaning roller 73 is retracted, it will contact the inner side of the suction nozzle 52, and then clean the rest of the interior of the suction nozzle 52 to improve the stability of the suction nozzle 52 when adsorbing the sheet 01.

[0063] The cleaning roller 73 cleans the position to be adsorbed on the sheet 01 and the suction nozzle 52 so that the suction nozzle 52 can be adsorbed on the sheet 01, thereby reducing the phenomenon that the conveyance of the sheet 01 is affected by the appearance of impurities and improving the stability when conveying the sheet 01.

[0064] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A sheet material conveying device, comprising an adsorption member (5) arranged on a frame (1) for transferring a sheet material (01), characterized in that: The adsorption member (5) comprises a suction nozzle (52) for adsorbing the sheet material (01), wherein the suction nozzle (52) is provided with a cleaning member (7) and a driving member (8); the driving member (8) comprises: a rotating sleeve (82) rotatably mounted in the suction nozzle (52), and a blade (83) obliquely arranged on the side of the rotating sleeve (82); the cleaning member (7) comprises: a receiving portion (72) slidably mounted in the rotating sleeve (82), a cleaning roller (73) rotatably connected to the receiving portion (72), and a rotating member (74) connected to the cleaning roller (73) and the receiving portion (72); the rotating member (74) is used to drive the cleaning roller (73) to rotate to a horizontal state, the receiving portion (72) and the rotating sleeve (82) are threadedly matched, and the cleaning roller (73) is arranged in the rotating sleeve (82); When the suction nozzle (52) does not adsorb the sheet (01), the airflow formed inside the suction nozzle (52) passes through the blades (83) and drives the rotating sleeve (82) to rotate. The rotating sleeve (82) drives the receiving portion (72) and the cleaning roller (73) to move downward. After the cleaning roller (73) moves to the outside of the rotating sleeve (82), the rotating member (74) drives the cleaning roller (73) to rotate and is located between the sheet (01) and the suction nozzle (52). The cleaning roller (73) rotates with the rotating sleeve (82) to clean impurities on the sheet (01) and the suction nozzle (52).

2. The sheet material conveying device according to claim 1, characterized in that: The adsorption member (5) comprises a mounting plate (51) for mounting a suction nozzle (52); a slide bar (71) and a fixing sleeve (81) are mounted on the mounting plate (51); the fixing sleeve (81) and the slide bar (71) are coaxially arranged in the suction nozzle (52); the slide bar (71) is arranged inside the fixing sleeve (81); the receiving portion (72) and the slide bar (71) are slidably matched; and the rotating sleeve (82) and the fixing sleeve (81) are rotationally matched.

3. The sheet material conveying device according to claim 2, characterized in that: The receiving portion (72) comprises a slider (721), an intermediate block (722) and an elastic member (723); the slider (721) is slidably matched with the slide rod (71); the cleaning roller (73) is connected to the intermediate block (722); one end of the elastic member (723) is connected to the slider (721) and the other end is rotatably connected to the intermediate block (722); the slider (721) is threadably matched with the rotating sleeve (82); the intermediate block (722) is slidably assembled in the rotating sleeve (82); the cleaning roller (73) rotates with the rotating sleeve (82) through the intermediate block (722); when the cleaning roller (73) cleans impurities, the intermediate block (722) stops moving, the slider (721) continues to move downward and compresses the elastic member (723).

4. The sheet material conveying device according to claim 2, characterized in that: A second rotating member (84) is arranged inside the fixed sleeve (81). The second rotating member (84) is connected to the rotating sleeve (82). When the rotating sleeve (82) rotates to drive the cleaning roller (73) to move downward, the second rotating member (84) is twisted. When the air extraction stops, the airflow inside the suction nozzle (52) disappears, and the second rotating member (84) drives the rotating sleeve (82) to rotate in the opposite direction, so as to drive the cleaning roller (73) to move into the rotating sleeve (82).

5. The sheet material conveying device according to claim 2, characterized in that: The suction nozzle (52) comprises a first sliding sleeve (521) and a second sliding sleeve (522); the first sliding sleeve (521) is connected to the mounting plate (51); the second sliding sleeve (522) and the first sliding sleeve (521) are slidably matched; the suction head of the suction nozzle (52) is arranged on the second sliding sleeve (522); a second elastic member (523) connecting the second sliding sleeve (522) and the first sliding sleeve (521) is arranged between the two; the second elastic member (523) is used to drive the second sliding sleeve (522) to slide downward away from the first sliding sleeve (521); when the cleaning roller (73) rotates to a horizontal state, it cooperates with the suction head of the suction nozzle (52) to drive the second sliding sleeve (522) to slide upward, so that the cleaning roller (73) is located between the suction nozzle (52) and the sheet (01).

6. The sheet material conveying device according to claim 1, characterized in that: A loading assembly (3), a conveying assembly (2), and a connecting frame (4) are arranged on the frame (1); the loading assembly (3) is used to place stacked sheets (01); the connecting frame (4) slides left and right between the loading assembly (3) and the conveying assembly (2); the connecting frame (4) is arranged above the loading assembly (3) and the conveying assembly (2); a lifting member (6) is arranged on the connecting frame (4); the lifting member (6) is connected to the adsorption member (5) and is used to drive the adsorption member (5) to move up and down.

7. The sheet material conveying device according to claim 6, characterized in that: A sensing element is provided inside the suction nozzle (52), and the sensing element is used to detect the internal air pressure of the suction nozzle (52). A controller is provided on the mounting plate (51), and the sensing element is electrically connected to the controller. A power element (91) is provided between the mounting plate (51) and the lifting element (6), and the power element (91) is used to drive the mounting plate (51) to rotate so as to change the position of the suction nozzle (52) to adsorb the sheet (01). When the suction nozzle (52) still cannot adsorb the sheet (01) after the cleaning roller (73) cleans the impurities, the controller controls the power element (91) to rotate the mounting plate (51).

8. The sheet material conveying device according to claim 7, characterized in that: Two groups of mounting plates (51) and suction nozzles (52) are arranged at intervals, two suction nozzles (52) are arranged on each group of mounting plates (51), and the suction nozzles (52) on the two groups of mounting plates (51) are evenly distributed.

9. The sheet material conveying device according to claim 6, characterized in that: A loading assembly (3) and an adsorption member (5) are provided on both sides of the conveying assembly (2), and the two groups of adsorption members (5) of the conveying assembly (2) alternately place the sheet material (01) on the conveying assembly (2).

10. The sheet material conveying device according to claim 1, characterized in that: A through hole (511) in communication with the suction nozzle (52) is provided in the mounting plate (51), a suction pipe (512) in communication with the through hole (511) is provided on the mounting plate (51), and an air pump extracts air from the suction nozzle (52) through the suction pipe (512) and the through hole (511).

Images