An automatic feeding device for automatic rotation and feeding of a fully automatic screen printing machine

Abstract

The present invention relates to a feeding device, and more specifically, it relates to an automatic feeding device for automatic rotation correction of a fully automatic screen printer. The key points of its technical solution are as follows: The first rotating shaft is fixedly connected to the center of the first synchronous wheel, and the second rotating shaft is fixedly connected to the center of the second synchronous wheel. The first rotating shaft and the second rotating shaft are arranged in parallel, and the first rotating shaft and the second rotating shaft are connected by a synchronous belt drive; an adjustment seat, the adjustment seat is fixedly connected to the first rotating shaft; a through hole is provided in the adjustment seat, and the second rotating shaft passes through the through hole of the adjustment seat; a holding member, connected to the second rotating shaft. Effects: First, this device accurately determines whether the workpiece is in place and the positive and negative states of the workpiece by means of a photoelectric sensor, then sucks the workpiece by a suction cup, and then the rotating cylinder decides whether to rotate according to the state of the workpiece, and finally places it in the working position. The whole structure is very simple, and the photoelectric sensor senses the positive and negative of the workpiece more accurately, and the feeding efficiency is higher.

Description

Technical Field

[0001] The present invention relates to a feeding device, and more specifically, to an automatic feeding device with automatic workpiece orientation for a fully automatic screen printing machine. Background Art

[0002] During the screen printing process of products such as glass bottles, jars, and square bottles, workpiece orientation during feeding is a very important step. If the workpiece is placed in the working position in the reverse direction, the screen printing pattern will be reversed, affecting the quality of the product, and even causing the workpiece to fall into the transmission mechanism, resulting in machine shutdown.

[0003] In current screen printing equipment on the market, for workpieces during the feeding process of glass bottles, jars, and square bottles, both the front and back orientations are manually adjusted, or a rotary orientation device is used to position the workpieces in the correct orientation to ensure that the screen printing pattern of the product is not reversed. Manual operation requires a large amount of labor and time. The rotary orientation device consists of many components, has a complex structure, a large volume, and cannot achieve a high orientation efficiency, resulting in a decrease in screen printing production efficiency. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an automatic feeding device with automatic workpiece orientation for a fully automatic screen printing machine, which has the advantages of fully automatic feeding and automatic adjustment of the workpiece direction.

[0005] The above technical objective of the present invention is achieved through the following technical solutions: a first rotating shaft, a second rotating shaft, a first synchronous pulley, and a second synchronous pulley. The first rotating shaft is fixedly connected to the center of the first synchronous pulley, and the second rotating shaft is fixedly connected to the center of the second synchronous pulley. The first rotating shaft and the second rotating shaft are arranged in parallel, and the first rotating shaft and the second rotating shaft are connected by a synchronous belt for transmission;

[0006] An adjustment seat is fixedly connected to the first rotating shaft; the adjustment seat is provided with a through hole, and the second rotating shaft passes through the through hole of the adjustment seat;

[0007] A holding member is connected to the second rotating shaft.

[0008] The present invention is further provided that the transmission ratio of the first synchronous pulley to the second synchronous pulley is 1:1.

[0009] The present invention is further provided that the holding member includes a rotary cylinder and a vacuum chuck. The rotary cylinder is fixedly connected to the second rotating shaft, and the vacuum chuck is installed at the movable end of the rotary cylinder.

[0010] The present invention is further provided with a bottle feeding support plate. The second rotating shaft drives the holding member to move to a position above the bottle feeding support plate; when the holding member is in a position above the bottle feeding support plate, the vacuum chuck is directly facing the supporting surface of the bottle feeding support plate.

[0011] The present invention is further configured to further include a feeding photoelectric sensor and a positive and negative induction photoelectric sensor. The positive and negative photoelectric sensor is used to detect the orientation of the bottle falling on the bottle feeding tray, and the feeding photoelectric sensor is used to detect whether there is a bottle entering the bottle feeding tray.

[0012] The present invention is further configured to: a bearing is provided between the second rotating shaft and the through hole of the adjustment seat.

[0013] The present invention is further configured to further include a third synchronous pulley, a fourth synchronous pulley and a third rotating shaft. The first rotating shaft is fixedly connected to the axis of the third synchronous pulley, the third rotating shaft is fixedly connected to the axis of the fourth synchronous pulley, and the third synchronous pulley is in transmission connection with the fourth synchronous pulley.

[0014] The present invention is further configured to further include a first fixing plate, a second fixing plate and a sliding rod. The first fixing plate is fixedly connected to the second rotating shaft. The sliding rod is arranged perpendicular to the first fixing plate. The second fixing plate is slidably arranged along the sliding rod, and the sucking member is fixedly arranged on the second fixing plate.

[0015] In summary, the present invention has the following beneficial effects:

[0016] First, the device accurately determines whether the workpiece is in place and the positive and negative states of the workpiece by the photoelectric sensor, then sucks the workpiece by the suction cup, then the rotating cylinder decides whether to rotate according to the state of the workpiece, and finally places it in the working station. The whole structure is very simple, and it is more accurate to sense the positive and negative of the workpiece by the photoelectric sensor, and the feeding efficiency is higher.

[0017] Second, since the sizes and structures of the bottles are inconsistent, the position of the second fixing plate on the sliding rod can be adjusted, so that the sucking member can be adapted to various bottles.

[0018] Third, the swinging device composed of the first rotating shaft, the second rotating shaft, the first synchronous pulley, the second synchronous pulley, the synchronous belt and the adjustment seat has a fast response and is more suitable for handling bottle-like products. Description of the Drawings

[0019] Figure 1 is the rear view of an automatic positive-feeding device for a full-automatic screen printer in this embodiment;

[0020] Figure 2 is the front view of an automatic positive-feeding device for a full-automatic screen printer in this embodiment (the sucking member is above the bottle feeding tray);

[0021] Figure 3 is the front view of an automatic positive-feeding device for a full-automatic screen printer in this embodiment (the sucking member is above the external conveyor belt);

[0022] Figure 4 It is a three-dimensional diagram of the automatic straightening and feeding device of a fully automatic screen printing machine;

[0023] Figure 5 It is a schematic diagram of the structure of the swing device composed of the first rotating shaft, the second rotating shaft, the first synchronous wheel, the second synchronous wheel, the synchronous belt and the adjustment seat in this embodiment.

[0024] In the figure: 1. first rotating shaft; 2. second rotating shaft; 3. first synchronous wheel; 4. second synchronous wheel; 5. synchronous belt; 6. adjustment seat; 7. suction and holding member; 701. rotating cylinder; 702. vacuum suction cup; 8. bottle feeding support plate; 9. feeding photoelectric sensor; 10. positive and negative sensing photoelectric sensor; 11. third synchronous wheel; 12. fourth synchronous wheel; 13. third rotating shaft; 14. first fixed plate; 15. second fixed plate; 16. sliding rod; 17. fixed plate. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] The present invention discloses an automatic straightening and feeding device for a fully automatic screen printing machine, such as Figure 1 As shown, it includes: a first rotating shaft 1, a second rotating shaft 2, a first synchronous wheel 3 and a second synchronous wheel 4.

[0027] like Figure 5 The first rotating shaft 1 is fixedly connected to the axis of the first synchronous wheel 3, the second rotating shaft 2 is fixedly connected to the axis of the second synchronous wheel 4, the first rotating shaft 1 and the second rotating shaft 2 are arranged in parallel, and the first rotating shaft 1 and the second rotating shaft 2 are connected by a synchronous belt 5, and the transmission ratio of the first synchronous wheel 3 to the second synchronous wheel 4 is 1:1.

[0028] like Figure 4 and Figure 5 , an adjustment seat 6 is provided, the adjustment seat 6 is provided with a plate member with two through holes, the first rotating shaft 1 passes through one of the through holes of the adjustment seat 6 and is fixedly connected to the adjustment seat 6. The second rotating shaft 2 passes through the other through hole of the adjustment seat 6, and a bearing is provided between the second rotating shaft 2 and the through hole of the adjustment seat 6, so that the second rotating shaft 2 can rotate in the through hole of the adjustment seat 6.

[0029] like Figure 4 and 5 , further comprising a suction member 7, a first fixing plate 14, a second fixing plate 15 and a sliding rod 16. The first fixing plate 14 is fixedly connected to the second rotating shaft 2, the sliding rod 16 is arranged perpendicular to the first fixing plate 14, the second fixing plate 15 can be slidably arranged along the sliding rod 16, the suction member 7 is fixedly arranged on the second fixing plate 15, and the position of the suction member 7 can be adjusted by sliding the second fixing plate 15 on the sliding rod 16, so as to adapt to various working positions.

[0030] As Figure 5 , the holding member 7 includes a rotary cylinder 701 and a vacuum chuck 702. The rotary cylinder 701 is fixedly arranged on the second fixing plate 15, and the vacuum chuck 702 is mounted on the movable end of the rotary cylinder 701. In some embodiments, the bottles enter the station to be picked up in different directions. For example, some bottle mouths face forward and some face backward. When it is required that the bottle mouths of all the bottles face forward, the bottle body can be adsorbed by the vacuum chuck 702. When the bottle mouths face backward, the movable end of the rotary cylinder 701 rotates 180 degrees, and all the bottles with the bottle mouths facing backward in all the stations to be picked up are adjusted so that the bottle mouths face forward before entering the transportation.

[0031] When the first rotating shaft 1 rotates, it drives the adjustment seat 6 to rotate. In some cases, the adjustment seat 6 rotates around the axis of the first rotating shaft 1 by an angle less than 180 degrees. The two end points of the rotation of the adjustment seat 6 are respectively the bottle picking station and the bottle placing station. The second rotating shaft 2 passing through the adjustment seat 6 will also be driven by the adjustment seat 6 to rotate around the first rotating shaft 1 by a certain angle. Since the transmission ratio of the first synchronous pulley 3 and the second synchronous pulley 4 connected to the first rotating shaft 1 and the second rotating shaft 2 is 1:1, from Figure 2 station to Figure 3 station, the first rotating shaft 1 needs to rotate counterclockwise by a certain angle. The first rotating shaft 1 will drive the adjustment seat 6 to rotate counterclockwise by a certain angle. The adjustment seat 6 will drive the lower end of the first fixing plate 14 to displace counterclockwise by a certain distance. At the same time, since the first rotating shaft 1 rotates counterclockwise, the synchronous belt 5 drives the second rotating shaft 2 to rotate counterclockwise, and the second rotating shaft 2 drives the upper end of the first fixing plate 14 to rotate counterclockwise. Since the transmission ratio of the first synchronous pulley 3 and the second synchronous pulley 4 is 1:1, the first fixing plate 14 is driven by the second rotating shaft 2 and the adjustment seat 6 to keep the upper end and the lower end of the first fixing plate 14 displaced to the left by the same distance, so that the suction cup on the first fixing plate 14 always faces the horizontal plane exactly.

[0032] As Figure 1 shown, it further includes a third synchronous pulley 11, a fourth synchronous pulley 12 and a third rotating shaft 13. The first rotating shaft 1 is fixedly connected to the axis of the third synchronous pulley 11, and the third rotating shaft 13 is fixedly connected to the axis of the fourth synchronous pulley 12, and the first rotating shaft 1 and the third rotating shaft 13 are arranged in parallel. The third synchronous pulley 11 and the fourth synchronous pulley 12 are connected by a synchronous belt, and the rotation of the fourth synchronous pulley 12 can drive the rotation of the third synchronous pulley 11, thereby driving the rotation of the first rotating shaft 1. The third rotating shaft 13 and the first rotating shaft 1 are arranged on a third fixing plate 17 through bearings.

[0033] As Figure 4, further comprising a bottle inlet supporting plate 8, the bottle inlet supporting plate 8 is detachably arranged on the third fixing plate 17, and the bottle inlet supporting plate 8 is at the bottle taking station of the device. The second rotating shaft 2 drives the suction member 7 to displace to a position above the bottle inlet supporting plate 8, and then the bottles on the bottle inlet supporting plate 8 can be sucked and taken away. And when the suction member 7 is at a position above the bottle inlet supporting plate 8, the vacuum suction cup 702 is directly facing the supporting surface of the bottle inlet supporting plate 8.

[0034] It further includes a feeding photoelectric sensor 9 and a positive and negative induction photoelectric sensor 10. The positive and negative photoelectric sensors are arranged on the side of the bottle inlet supporting plate 8, and the positive and negative photoelectric sensors are used to detect the orientation of the bottles falling on the bottle inlet supporting plate 8. In addition, the feeding photoelectric sensor 9 is arranged at a position below the bottle inlet supporting plate 8, and the feeding photoelectric sensor 9 is used to detect whether there are bottles entering the bottle inlet supporting plate 8.

[0035] Working process: The bottle inlet supporting plate 8 is connected to an external conveyor belt to receive the bottles entering from the outside. The bottles enter the bottle inlet supporting plate 8 horizontally in the Figure 1 direction, but it is not possible to determine whether the bottle openings face left or right. At this time, the suction member 7 is at a position above the bottle inlet supporting plate 8, and the vacuum suction cup 702 is facing the placement surface of the bottle inlet supporting plate 8. When the feeding photoelectric sensor 9 detects that a bottle enters the bottle inlet supporting plate 8, it controls the vacuum suction cup 702 to adsorb the bottle on the bottle inlet supporting plate 8, and then the positive and negative photoelectric sensors detect the orientation of the bottle opening. Here, it is selected that the bottle opening facing right is the required direction. When the positive and negative photoelectric sensors detect that the bottle opening faces right, it enters the next step. When it is detected that the bottle opening faces left, the rotary cylinder 701 rotates 180 degrees to make the bottle openings all face right and enter the next step. The third rotating shaft 13 rotates to control the rotation of the first rotating shaft 1, such as Figure 2 from the Figure 3 station to the

[0036] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An automatic feeding device for automatic rotation and feeding of a fully automatic screen printing machine, characterized in that, Including: A first rotating shaft, a second rotating shaft, a first synchronous pulley and a second synchronous pulley. The first rotating shaft is fixedly connected to the axis center of the first synchronous pulley. The second rotating shaft is fixedly connected to the axis center of the second synchronous pulley. The first rotating shaft and the second rotating shaft are arranged in parallel, and the first rotating shaft and the second rotating shaft are connected by a synchronous belt for transmission; An adjusting seat, which is fixedly connected to the first rotating shaft; The adjusting seat is provided with a through hole, and the second rotating shaft passes through the through hole of the adjusting seat and is rotatably connected to the adjusting seat; The adjusting seat is provided with a plate member having two through holes. The first rotating shaft passes through one of the through holes of the adjusting seat and is fixedly connected to the adjusting seat; The second rotating shaft passes through the other through hole of the adjusting seat, and a bearing is arranged between the second rotating shaft and the through hole of the adjusting seat, so that the first rotating shaft can make a rotational movement in the through hole of the adjusting seat; A holding member, which is connected to the second rotating shaft; The transmission ratio of the first synchronous pulley to the second synchronous pulley is 1:1; The holding member includes a rotary cylinder and a vacuum chuck. The rotary cylinder is connected to the second rotating shaft, and the vacuum chuck is installed at the movable end of the rotary cylinder; It further includes a bottle feeding support plate. The second rotating shaft can drive the holding member to displace to a position above the bottle feeding support plate. Wherein, when the holding member is in a position above the bottle feeding support plate, the vacuum chuck is directly facing the supporting surface of the bottle feeding support plate; It further includes a feeding photoelectric sensor and a positive and negative induction photoelectric sensor; The positive and negative photoelectric sensor is used to detect the orientation of the bottle falling on the bottle feeding support plate, and the positive and negative photoelectric sensor is arranged on one side of the bottle feeding support plate; The feeding photoelectric sensor is used to detect whether there is a bottle entering the bottle feeding support plate, and the feeding photoelectric sensor is arranged at the bottom of the bottle feeding support plate; It further includes a third synchronous pulley, a fourth synchronous pulley and a third rotating shaft. The first rotating shaft is fixedly connected to the axis center of the third synchronous pulley. The third rotating shaft is fixedly connected to the axis center of the fourth synchronous pulley. The third synchronous pulley and the fourth synchronous pulley are in transmission connection; It further includes a first fixing plate, a second fixing plate and a sliding rod. The first fixing plate is fixedly connected to the second rotating shaft. The sliding rod is arranged perpendicular to the first fixing plate. The second fixing plate is arranged to slide along the sliding rod. The holding member is fixedly arranged on the second fixing plate; When the first rotating shaft rotates, it drives the adjustment seat to rotate. In some cases, the adjustment seat rotates around the axis of the first rotating shaft by an angle less than 180 degrees, and the two end points of the rotation of the adjustment seat are the bottle picking station and the bottle placing station respectively; the second rotating shaft passing through the adjustment seat will be driven by the adjustment seat to rotate by a certain angle around the first rotating shaft. Since the transmission ratio of the first synchronous pulley and the second synchronous pulley between the first rotating shaft and the second rotating shaft is 1:1, from the position where the suction member is above the bottle inlet tray to the position where the suction member is above the external conveyor belt, the first rotating shaft needs to rotate counterclockwise by a certain angle. The first rotating shaft will drive the adjustment seat to rotate counterclockwise by a certain angle, and the adjustment seat will drive the lower end of the first fixed plate to displace counterclockwise by a certain distance. At the same time, due to the counterclockwise rotation of the first rotating shaft, the synchronous belt drives the second rotating shaft to rotate counterclockwise, and the second rotating shaft drives the upper end of the first fixed plate to rotate counterclockwise. Since the transmission ratio of the first synchronous pulley and the second synchronous pulley is 1:1, the first fixed plate is driven by the second rotating shaft and the adjustment seat to keep the upper end and the lower end of the first fixed plate displaced to the left by the same distance, so that the suction cup on the first fixed plate always faces the horizontal plane directly.

Images