Automatic feeding machine for production line printing
By using technical means such as material stoppers, height limiters and visual sensors in the loading machine of the assembly line printing equipment, the problem of low accuracy and efficiency of feeding direction selection is solved, and efficient and accurate material loading and direction selection is achieved, which improves the overall working efficiency and scope of application.
Patent Information
- Application Number
- CN202510203318.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-04-04
AI Technical Summary
The existing assembly line printing equipment uses direction selection equipment and conveyor belt loading methods to match the loading method of conveyor belts, which have problems with low loading accuracy and low working efficiency.
An automatic loading machine for assembly line printing is designed. By setting up material barriers and height limits on the conveying device, combined with visual sensors, controllers and air nozzles, the automatic direction selection and material transfer of materials are realized, ensuring that the materials remain in a single row during the conveying process.
The accuracy of feeding and direction selection work has been improved, and the working efficiency has been improved, so that the subsequent printing work rate has been increased from 15,000 units/hour to 28,000 units/hour, reducing labor costs and expanding the scope of application.
Smart Images
Figure CN119750164A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a feeding device for an assembly line printer, in particular to an automatic feeding machine for assembly line printing. Background Art
[0002] When producing accessories or parts for clothing, bags, etc., because the base materials of such accessories or parts have just been injected, the back side is a flat surface and the front side is a concave-convex surface, and there is no specific pattern or figure on the concave-convex surface of the front side. For example, accessories such as a little bear do not have specific facial features on the front side of the base material. Therefore, it is necessary to use an assembly line printing device to print the required pattern or figure on the front side of each accessory or part base material; although the assembly line printing device can automatically detect the position and angle of the conveyed base material compared to the previous printing device, and then adjust the printing end that can print the pattern or figure according to the detected position and angle of the material, so that the printing end can adapt to the angle and position of the base material, thereby realizing the automatic printing of multiple rows and columns of base materials; but when printing such a base material with a concave-convex front side, it is necessary to ensure that the material is conveyed to the printing conveyor belt of the assembly line printing device with the front side facing up.
[0003] In the actual feeding process, the general manual feeding method is adopted, although it can ensure that the material is facing up, but the overall work efficiency is low; and the conveyor belt conveying method can ensure the working efficiency of feeding, but there is no way to ensure that the material is facing up, so it is also necessary to equip the corresponding selection equipment to select the material; the common selection equipment mainly includes selection parts, detection parts and control parts, which are first detected by the detection parts, and then the control parts control the selection parts to remove the non-compliant materials through the data detected by the detection parts. In the actual use process, the detection end in the selection equipment is easy to cause detection data errors due to the large number of materials passing through or the materials are stacked together when passing through, which causes some positive materials to be mistakenly removed with the reverse materials or the reverse materials are directly passed because they are covered by the positive materials. The probability of wrong selection in the overall selection process is high and the accuracy is low; which will also cause the phenomenon that the subsequent printing work cannot be carried out, and the overall work efficiency will be reduced. Therefore, the existing assembly line printing equipment uses the selection equipment with the conveyor belt feeding method. There are problems of low loading and selection accuracy and low work efficiency in the actual use process. Summary of the invention
[0004] The purpose of the present invention is to provide an automatic feeding machine for production line printing, which can not only improve the accuracy of feeding and direction selection, but also has the advantage of high working efficiency.
[0005] The technical solution of the present invention: an automatic feeding machine for assembly line printing, comprising a frame, a feed bin for storing materials, a conveying device for driving the movement of materials, and a material moving device for transferring materials from the feed bin to the conveying device, the conveying device being provided with a material blocking member for only allowing a single row of materials to pass through, and a height limiting member for only allowing a single material to pass through being provided above the material blocking member's discharge position; a first air nozzle for blowing the material out of the conveying device is provided on one side of the material blocking member, a visual sensor is provided between the first air nozzle and the material blocking member, and a controller capable of controlling the start and stop of the first air nozzle is electrically connected to the visual sensor; the material blocking member, the height limiting member, the visual sensor and the first air nozzle are arranged in sequence along the conveying direction of the conveying device; the height limiting member is connected to a rotating motor for driving the height limiting member to rotate, and the rotation direction of the rotating motor is the direction in which materials exceeding the height limit are rotated away from the conveying device.
[0006] In the aforementioned assembly line printing automatic feeder, the portion of the height limiter that contacts the material is a brush structure, and the brush structure is arranged on the bottom surface of the height limiter.
[0007] In the aforementioned assembly line printing automatic feeding machine, the discharge end of the conveying device is connected to an inclined and flared guide frame, and the width of the discharge position of the guide frame is the same as the width of the assembly line printing equipment; a second air nozzle for discretely blowing the material is provided at the feed position of the guide frame.
[0008] In the aforementioned assembly line printing automatic feeding machine, two second air nozzles are provided, and the two second air nozzles are symmetrically arranged at the feeding position of the guide frame; only one of the two second air nozzles is in working state at a time, and each second air nozzle is connected to a valve for controlling the start and stop of the second air nozzle, and the valve is electrically connected to the controller.
[0009] In the aforementioned assembly line printing automatic feeding machine, the guide frame includes two symmetrically distributed oblique blocks, and a vertical block is provided at the end of each oblique block away from the conveying device; the second air nozzle is provided on the oblique block; and a baffle is provided between the ends of all the oblique blocks and the vertical blocks for only a single flat material to pass through.
[0010] In the aforementioned automatic feeding machine for assembly line printing, a third conveyor belt adapted to the assembly line printing equipment is connected to the discharge position of the guide frame, and the two ends of the third conveyor belt are respectively connected to a third driving shaft and a third driven shaft; the third driving shaft is connected to a third motor, and an encoder for detecting the moving distance and start / stop status of the third conveyor belt is provided on the third conveyor belt; a feed roller is provided above the feeding end of the third conveyor belt, and a feed motor is connected to the end of the feed roller; a plurality of radially distributed brush members are provided on the surface of the feed roller, and a gap for only a single row of materials to pass through is provided between each two adjacent brush members; the encoder is electrically connected to the feeding motor through a controller.
[0011] In the aforementioned assembly line printing automatic feeding machine, the material blocking member is connected to a horizontal adjustment member that can drive the material blocking member to move in a horizontal direction perpendicular to the moving path of the conveying device; the height limiting member is connected to a height lifting member that can drive the height limiting member to move in a vertical direction perpendicular to the conveying device; the baffle is connected to a baffle lifting device for driving the baffle to move in a vertical direction perpendicular to the guide frame.
[0012] In the aforementioned automatic feeder for assembly line printing, the horizontal adjustment member includes a gantry arranged above the first transmission device, the gantry is provided with an adjustment servo motor, and the adjustment servo motor is connected with a horizontally arranged adjustment ball screw; an adjustment seat is slidably mounted on the adjustment ball screw; the material stopper is mounted on the adjustment seat; the height lifting member includes a height adjustment ball screw vertically arranged on the side of the gantry, and the end of the height adjustment ball screw is connected with a height adjustment servo motor; a height adjustment lifting seat is slidably mounted on the height adjustment ball screw, The height limiter and the rotating motor are arranged on a height adjustment lifting seat; the baffle lifting device includes a baffle lifting ball screw arranged perpendicular to the guide frame, and the end of the baffle lifting ball screw is connected to a baffle lifting servo motor; a baffle lifting seat is slidably mounted on the baffle lifting ball screw, and the baffle is mounted on the baffle lifting seat; connecting seats are rotatably mounted on both ends of the feeding roller, and a feeding ball screw arranged perpendicular to the guide frame is slidably mounted on each connecting seat, and a feeding servo motor is mounted on the end of each feeding ball screw.
[0013] In the aforementioned assembly line printing automatic feeding machine, the conveying device includes two first conveyor belts and a second conveyor belt arranged side by side, and both ends of the first conveyor belt and the second conveyor belt are provided with a driving shaft and a driven shaft, each driving shaft is connected to a driving motor, and the conveying directions of the first conveyor belt and the second conveyor belt are opposite; the first conveyor belt is provided with a guide member for pushing the material onto the second conveyor belt, and the first conveyor belt is arranged below the dropping position of the material moving device; the material blocking member, the height limit member, the visual sensor and the first air nozzle are all arranged on the second conveyor belt; when there are multiple materials on the second conveyor belt passing through the material blocking member at the same time, the material blocking member only allows one material to pass along the second conveyor belt, and the material blocking member pushes more than one material onto the first conveyor belt; a gap is provided between the side of the guide member away from the second conveyor belt and the edge of the first conveyor belt; the feed bin is arranged directly below the output end of the first conveyor belt.
[0014] In the aforementioned assembly line printing automatic feeding machine, the material moving device includes a lifting frame, on which is provided an inclined lifting conveyor belt; a plurality of evenly distributed partitions are provided on the surface of the lifting conveyor belt, and a lifting driving shaft and a lifting driven shaft are respectively provided at the two ends of the lifting conveyor belt, and the ends of the lifting driving shaft are connected to a lifting motor; a material receiving hopper is provided directly below the dropping position of the lifting conveyor belt, and an inclined discharging channel is provided at the bottom end of the material receiving hopper; the discharging end of the discharging channel is provided directly above the first conveyor belt, and an upper baffle is provided on the top surface of the discharging channel to prevent materials from falling out.
[0015] Compared with the prior art, the present invention improves the existing feeder for assembly line printers by arranging a material blocking member and a height limiting member on the conveying device, so that when a lot of scattered materials move in the direction of the material discharging position along the material blocking member under the action of the conveying device, the material blocking member will gradually gather the materials together, and then under the limiting action of the material discharging position of the material blocking member, only a single row of materials can pass through; in combination with the height limiting member, the height of the passing materials can be limited, and the stacked or even tilted materials can be blocked, so that only a single material can pass through, and finally the materials passing through the material discharging position of the material blocking member are placed horizontally. Single, so that when the front and back sides of the material are subsequently inspected and screened, it can well avoid the phenomenon that multiple rows of materials pass through at the same time or multiple materials are stacked and passed, causing the subsequent inspection and removal of the reverse side material to be wrong, thereby improving the overall selection accuracy; by setting up a visual sensor, a controller and an air nozzle, when performing the selection work, the visual sensor first takes a photo of the passing material, and transmits the photo to the controller, and then the controller determines the front and back sides of the passed material and controls whether the air nozzle is started to push the turned material out of the conveying device, thereby realizing automatic selection work, and then cooperating with the conveying device to automatically move the material, so that Compared with the previous feeding methods using conveyor belts or manipulators, the entire feeding process can greatly improve the feeding efficiency, thereby increasing the printing rate of subsequent assembly line printers from 15,000 pieces per hour to 28,000 pieces per hour, greatly improving the overall work efficiency; and the current equipment can reduce the number of workers for a feeding machine from 3 to 1, and even enable one person to operate two machines, reducing the overall labor cost and production cost; by setting up a material transfer device, the material in the feed bin can be automatically transported to the conveyor device for selection. No manual loading is required, which further improves work efficiency. At the same time, the rotating motor can drive the height limiter to rotate, and the rotating height limiter can rotate the materials exceeding the height limit to both sides, avoiding the accumulation or tilting of the materials exceeding the height limit above the discharge end, which makes the subsequent materials unable to move forward, and further ensures the stability of use. The rotation direction of the rotating motor is set to the direction of rotating the materials exceeding the height limit away from the conveying device, so that the materials exceeding the height limit can be re-conveyed to the conveying device for direction selection, and will not always stay above other materials, ensuring the stable progress of the direction selection work.
[0016] In addition, the present invention also reduces the collision or wear between the height limiter and the material by configuring the portion where the height limiter contacts the material as a brush, thereby reducing unnecessary damage to the material and lowering production costs; by configuring the distance between the discharge end of the material stopper and the edge of the conveying device to be larger than the width of a single material and smaller than the width of two materials, while ensuring that only a single material passes through, the single material can pass through the discharge end of the material stopper in a horizontal or vertical manner, thereby avoiding the phenomenon that the discharge end is blocked by the material due to inclination or lateral movement, thereby ensuring the stable execution of the directional selection work; by configuring the adjusting ball screw and the adjusting servo motor, the discharge end of the material stopper can be adjusted The distance between the material end and the edge of the conveyor device is adjusted, so that the material stopper can be adjusted when the width of the material being selected and fed changes, thereby expanding the scope of application; by connecting a height adjustment ball screw and a height adjustment servo motor to the height limiter, the height limiter can be moved up and down in a vertical direction perpendicular to the conveyor device, and then the vertical distance between the height limiter and the conveyor device can be adjusted to be suitable for the selection and feeding of single materials of different heights, further expanding the scope of application; by arranging two first conveyor belts and a second conveyor belt arranged side by side, and the conveying directions of the first conveyor belt and the second conveyor belt are opposite, In combination with the guide member, the material can be guided and pushed from the first conveyor belt to the second conveyor belt, thereby reducing the length of the entire conveyor device and reducing the floor space occupied by the entire device; and by limiting the distance between the first conveyor belt and the second conveyor belt, when multiple materials on the second conveyor belt pass through the material blocking member at the same time, the material blocking member only allows one material to pass along the second conveyor belt, and the material blocking member pushes more than one material onto the first conveyor belt, and at the same time the height limiting member can also rotate the material exceeding the height limit off to the first conveyor belt, so that the pushed out material can automatically pass through the first conveyor belt and the guide member back to the second conveyor belt and the material blocking member for single-row and single-column limiting work, without the need for manual intervention. The collection and feeding work is carried out to improve the work efficiency; by setting the guide frame to be inclined, the material can automatically move downward on the guide frame, and cooperate with the second air nozzle to realize the automatic discrete feeding work, which is convenient for use; and the setting of the baffle can block the material from above during the movement of the material on the guide frame to avoid the material from turning over, ensuring the stable feeding work; and the baffle lifting ball screw and baffle lifting servo motor connected to the baffle can drive the baffle to move up and down in the direction perpendicular to the guide frame, and then adjust the distance between the baffle and the guide frame to adapt to the passage of materials of different heights, further expanding the scope of application;By setting up a guide frame and arranging a second air nozzle for discretely blowing the material at the feeding position of the guide frame, when a single material is moved from the conveying device to the feeding position of the guide frame, the air nozzle is used to discretely blow the material onto the guide frame, so that the materials entering the guide frame one by one can be arranged horizontally at the discharging position of the guide frame, and then the materials can enter the third conveyor belt in rows and move to the assembly line printer for printing, which well solves the problem of incompatibility between a single direction selection device and an assembly line printing device and improves the printing work efficiency; by setting the guide frame to be composed of an oblique baffle and a vertical baffle The oblique baffle can guide the movement of the material, and the second air nozzle can ensure the stable progress of the discrete work; the vertical baffle can block the two sides of the finally arranged material, so that the finally output material can match the feeding width of the assembly line printer, and the vertical baffle can also form a material storage area. Because the second conveying device is in a static state when the assembly line printer is printing, the material storage area can provide a certain buffer area for the discrete arrangement work on the guide frame, avoiding the phenomenon of material stacking at the discharge end of the guide frame, and ensuring the stable progress of the subsequent assembly line printing work; Two second air nozzles are provided and only one air nozzle is in working state during discrete feeding. The air nozzles on both sides can be used to blow the materials to both sides. The two air nozzles cooperate with each other to not only improve the working efficiency of discrete feeding, but also increase the discrete range of the guide frame, thereby improving the scope of application. A plurality of evenly distributed brush members are provided on the surface of the feeding roller, and a gap is provided between each two adjacent brush members for only a single row of materials to pass through, so that each time the feeding roller rotates a certain angle, only a single row of materials can be fed, so as to adapt to the stable printing work of the subsequent assembly line printing equipment. A third conveyor belt is provided, and the third conveyor belt is connected to the assembly line printing equipment. The third conveyor belt is adapted to the printing width of the equipment, and an encoder for detecting the moving distance and start / stop status of the third conveyor belt is provided on one side of the third conveyor belt. The encoder and the controller are used to control the rotation state of the feed roller, so that the rotation speed of the feed roller matches the printing speed of the assembly line printer, avoiding the phenomenon of materials piling up or even stacking on the third conveyor belt, thereby ensuring the stable printing of the assembly line printer; by providing a plurality of evenly distributed partitions on the lifting conveyor belt, the partitions and the lifting conveyor belt cooperate with each other to lift the materials in the feed bin, and accumulate them in the receiving hopper, and then transport them to the first conveyor belt through the discharge channel, so as to realize automatic feeding. Therefore, the present invention can not only improve the accuracy of feeding and direction selection, but also has the advantages of high work efficiency, wide application range, high stability in use, small footprint and easy use. ; BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the present invention;
[0018] Figure 2 is a rear view of the present invention;
[0019] Figure 3 is a top view of the present invention;
[0020] Figure 4 is a side view of the present invention;
[0021] Figure 5 yes Figure 4 A partial enlarged view of the middle A;
[0022] Figure 6 It is a schematic diagram of the structure of the feed roller;
[0023] Figure 7 It is a structural schematic diagram of the diversion frame;
[0024] Figure 8 is a schematic diagram of the structure of the conveying device;
[0025] Fig. 9 It is a schematic diagram of the internal structure of the diversion frame;
[0026] Fig.10 It is a schematic diagram of the structure of the third conveyor belt.
[0027] The marks in the accompanying drawings are: 1-frame, 2-feed bin, 3-blocking member, 4-height limiting member, 5-first air nozzle, 6-visual sensor, 7-controller, 8-guide frame, 9-second air nozzle, 10-rotating motor, 11-adjusting servo motor, 12-adjusting ball screw, 13-height adjusting ball screw, 14-height adjusting servo motor, 15-first conveyor belt, 16-second conveyor belt, 17-guide member, 18-baffle, 19-baffle lifting ball screw, 20-baffle lifting servo motor, 21-oblique baffle, 22-vertical baffle, 23-third conveyor belt, 24-feeding roller, 25-feeding motor, 26-brush member, 27-feeding ball screw, 28-feeding servo motor, 29-encoder, 30-lifting frame, 31-lifting conveyor belt, 32-partition, 33-receiving hopper. DETAILED DESCRIPTION
[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0029] Embodiment. The automatic feeding machine for printing on the assembly line is composed of Figures 1 to 10As shown, it includes a frame 1, a feed bin 2 for storing materials, a conveying device for driving the movement of materials, and a material moving device for transferring materials from the feed bin 2 to the conveying device, the conveying device is provided with a material blocking member 3 for only a single row of materials to pass through, and a height limiter 4 for only a single material to pass through is provided above the discharge position of the material blocking member 3; a first air nozzle 5 for blowing the material out of the conveying device is provided on one side of the material blocking member 3, a visual sensor 6 is provided between the first air nozzle 5 and the material blocking member 3, and the visual sensor 6 is electrically connected to a controller 7 capable of controlling the start and stop of the first air nozzle 5; the material blocking member 3, the height limiter 4, the visual sensor 6 and the first air nozzle 5 are arranged in sequence along the conveying direction of the conveying device; the height limiter 4 is connected to a rotating motor 10 for driving the height limiter 4 to rotate, and the rotation direction of the rotating motor 10 is the direction of rotating the material exceeding the height limit away from the conveying device.
[0030] The part of the height limiter 4 that contacts the material is a brush structure, and the brush structure is arranged on the bottom surface of the height limiter 3; the discharge end of the conveying device is connected to a guide frame 8 that is inclined and flared, and the width of the discharge position of the guide frame 8 is the same as the width of the assembly line printing device; a second air nozzle 9 for discretely blowing the material is arranged at the feeding position of the guide frame 8; two second air nozzles 9 are arranged, and the two second air nozzles 9 are symmetrically arranged at the feeding position of the guide frame 8; only one of the two second air nozzles 9 is in working state at a time, and each second air nozzle 9 is connected to a valve for controlling the start and stop of the second air nozzle 9, and the valve is electrically connected to the controller 7; the guide frame 8 includes two symmetrically distributed oblique baffles. Part 21, each oblique baffle 21 is provided with a vertical baffle 22 at the end away from the conveying device; the second air nozzle 9 is provided on the oblique baffle 21; a baffle 18 for only a single flat material to pass through is provided between the ends of all the oblique baffles 21 and the vertical baffle 22; a third conveyor belt 23 adapted to the assembly line printing device is connected to the discharge position of the guide frame 8, and the two ends of the third conveyor belt 23 are respectively connected to a third driving shaft and a third driven shaft; a third motor is connected to the third driving shaft, and an encoder 29 for detecting the moving distance and start / stop state of the third conveyor belt 23 is provided on the third conveyor belt 23; a feeding roller 24 is provided above the feeding end of the third conveyor belt 23, and the end of the feeding roller 24 is connected to A feeding motor 25; a plurality of radially distributed brush members 26 are arranged on the surface of the feeding roller 24, and a gap is arranged between each two adjacent brush members 26 for only a single row of materials to pass through; the encoder 29 is electrically connected to the feeding motor 25 through the controller 7; the material blocking member 3 is connected to a horizontal adjustment member that can drive the material blocking member 3 to move in a horizontal direction perpendicular to the moving path of the conveying device; the height limiting member 4 is connected to a height lifting member that can drive the height limiting member 4 to move in a vertical direction perpendicular to the conveying device; the baffle 18 is connected to a baffle lifting device for driving the baffle 18 to move in a vertical direction perpendicular to the guide frame 8; the horizontal adjustment member includes a gantry arranged above the first transmission device , an adjustment servo motor 11 is arranged on the gantry, and a horizontally arranged adjustment ball screw 12 is connected to the adjustment servo motor 11; an adjustment seat is slidably mounted on the adjustment ball screw 12; the material blocking member 3 is mounted on the adjustment seat; the height lifting member includes a height adjustment ball screw 13 vertically arranged on the side of the gantry, and a height adjustment servo motor 14 is connected to the end of the height adjustment ball screw 13; a height adjustment lifting seat is slidably mounted on the height adjustment ball screw 13, and the height limiter 4 and the rotating motor 10 are arranged on the height adjustment lifting seat; the baffle lifting device includes a baffle lifting ball screw 19 arranged perpendicular to the guide frame 8, and a baffle lifting servo motor 20 is connected to the end of the baffle lifting ball screw 19;A baffle lifting seat is slidably mounted on the baffle lifting ball screw 19, and the baffle 18 is mounted on the baffle lifting seat; connecting seats are rotatably mounted on both ends of the feeding roller 24, and a feeding ball screw 27 vertically arranged with the guide frame 8 is slidably mounted on each connecting seat, and a feeding servo motor 28 is installed at the end of each feeding ball screw 27; the conveying device includes two first conveyor belts 15 and second conveyor belts 16 arranged side by side, and both ends of the first conveyor belt 15 and the second conveyor belt 16 are provided with a driving shaft and a driven shaft, and each driving shaft is connected to a driving motor, and the conveying directions of the first conveyor belt 15 and the second conveyor belt 16 are opposite; a guide member 17 for pushing the material onto the second conveyor belt 16 is provided on the first conveyor belt 15, and the first conveyor belt 15 is arranged below the blanking position of the material moving device; the blocking member 3, the height limit member 4, the visual sensor 6 and the first air nozzle 5 are all arranged on the second conveyor belt 16; when the second conveyor belt 1 When multiple materials on 6 pass through the blocking member 3 at the same time, the blocking member 3 only allows one material to pass along the second conveyor belt 16, and the blocking member 3 pushes more than one material onto the first conveyor belt 15; a gap is provided between the side of the guide member 17 away from the second conveyor belt 16 and the edge of the first conveyor belt 15; the feed bin 2 is arranged directly below the output end of the first conveyor belt 15; the material moving device includes a lifting frame 30, on which an inclined lifting conveyor belt 31 is arranged; a plurality of evenly distributed partitions 32 are arranged on the surface of the lifting conveyor belt 31, and a lifting driving shaft and a lifting driven shaft are respectively arranged at the two ends of the lifting conveyor belt 31, and a lifting motor is connected to the end of the lifting driving shaft; a receiving hopper 33 is arranged directly below the drop position of the lifting conveyor belt 31, and a discharging channel is arranged at an inclined position at the bottom end of the receiving hopper 33; the discharging end of the discharging channel is arranged directly above the first conveyor belt 15, and an upper baffle is arranged on the top surface of the discharging channel to prevent materials from falling out. ;
[0031] Working principle: When loading materials, first connect the entire device to an external safe mains power supply, so that the visual sensor 6, controller 7, rotary motor 10 and encoder 29 are in working state (the visual sensor 6 used in the present invention is a camera, the specific model is MV-CU013-A0GC; the controller 7 can specifically adopt AFMC_V1.3, FX2C-20MRD or Cortex-R8 and other models; the encoder 29 used in the present invention is AFMC_V1.3, FX2C-20MRD or Cortex-R8, specifically ZSP3806 and other models); then pour the materials to be printed into the feed bin 2 to complete the preliminary preparations; then control the lifting motor to start, after the lifting motor starts, it will drive the lifting active shaft to rotate, and after the lifting active shaft rotates, it will drive the lifting conveyor belt 31 to move, and during the movement of the lifting conveyor belt 31 It will drive the lifting driven shaft to rotate, thereby making the lifting conveyor belt 31 move in a cycle; because the entire lifting conveyor belt 31 is arranged in an inclined shape, and a plurality of evenly distributed partitions 32 are arranged on the lifting conveyor belt 31, and one end of the lifting conveyor belt 31 is arranged in the feeding bin 2, when the lifting conveyor belt 31 drives the partition 32 to move upward together, the partition 32 will lift the material in the feeding bin 2 and move it between the partition 32 and the lifting conveyor belt 31, thereby realizing the lifting of the material; as the lifting conveyor belt 31 continues to move upward, the material will be moved to the top of the receiving hopper 33. At this time, as the lifting conveyor belt 31 continues to move, the lifting conveyor belt 31 will change from upward movement to downward movement, thereby making the material between the partition 32 and the lifting conveyor belt 31 be poured into the receiving hopper 33, and the material will flow to the first conveyor belt 15 through the discharge channel on the receiving hopper 33, thereby completing the material transfer.
[0032] When the material is moved from the feed bin 2 to the first conveyor belt 15, the drive motor connected to the first conveyor belt 15 and the second conveyor belt 16 is controlled to start. After the drive motor is started, the corresponding driving shafts will be driven to rotate respectively. After the different driving shafts rotate, they will respectively drive the first conveyor belt 15 and the second conveyor belt 16 to rotate. After the first conveyor belt 15 and the second conveyor belt 16 rotate, they will drive the corresponding driven shafts to rotate, and finally the first conveyor belt 15 and the second conveyor belt 16 can move in a cycle. With the movement of the first conveyor belt 15, the first conveyor belt 15 will drive the material falling on the first conveyor belt 15 to move toward the guide member 17. When the material moves to the position of the guide member 17 along with the first conveyor belt 15, because the guide member 17 is inclined, The guide piece 17 is disposed at the bottom of the first conveyor belt 15, and its two ends are respectively disposed on the first conveyor belt 15 and the second conveyor belt 16; when the material contacts the guide piece 17, the material entering the guide piece 17 close to the second conveyor belt 16 will be translated toward the second conveyor belt 16 under the action of the guide piece 17, and finally move from the first conveyor belt 15 to the second conveyor belt 16 (i.e., move from the output end of the first conveyor belt 15 to the input end of the second conveyor belt 16). At the same time, because the feed bin 2 is disposed directly below the output end of the first conveyor belt 15, a gap is provided between the side of the guide piece 17 away from the second conveyor belt 16 and the edge of the first conveyor belt 15, so that some of the material moved to the gap will return to the feed bin 2 along the first conveyor belt 15 for re-loading.
[0033] When the materials move onto the second conveyor belt 16 under the action of the guide member 17, the moving second conveyor belt 16 will drive the materials to move in the direction of the material blocking member 3. Under the cooperation of the guiding action of the material blocking member 3 and the conveying action of the second conveyor belt 16, the materials will move to the discharging position of the material blocking member 3. Because there is only a gap between the discharging position of the material blocking member 3 and the edge of the second conveyor belt 16 between the width of a single material and the width of two materials, only a single row of materials can pass through the gap. When multiple rows of materials pass through the gap, the materials exceeding the single row will be pushed to the first conveyor belt 15 on one side for re-loading and direction selection. At the same time, when the single row of materials passes through the discharging position of the material blocking member 3, the height limiter 4 above the discharging position will block the materials accumulated above, and finally realize that the single individual materials pass through the discharging position of the material blocking member 3. The materials are moved toward the direction of the visual sensor 6 in sequence; when the height limiter 4 is working, the started rotating motor 10 will drive the height limiter 4 to rotate, and the surface of the height limiter 4 in contact with the material is a brush, so that the rotating height limiter 4 can push the material above to move to one side, and the direction of rotation of the rotating motor 10 is limited, so that the rotating height limiter 4 can rotate to rotate the material from the second conveyor belt 16 to the first conveyor belt 15, and re-feeding and direction selection work is carried out; with the cooperation of the material blocking member 3 and the height limiter 4, the materials are moved one by one to the bottom of the visual sensor 6 to determine the direction of the front and back sides of the materials, thereby avoiding the simultaneous passage of multiple rows of materials or the stacking of multiple materials through the bottom of the visual sensor 6, which causes the phenomenon of incorrect judgment of the front and back directions of the materials, thereby ensuring the accuracy of subsequent direction selection work.
[0034] When a single material passes through the material blocking member 3, it will move with the second conveyor belt 16 to the bottom of the visual sensor 6. When the material passes under the visual sensor 6, the visual sensor 6 will take a picture of the top surface of the material and transmit the captured image to the controller 7. After receiving the captured image data, the controller 7 will judge the image according to the internally set image judgment formula (for example, because the front side of the material has different depressions and protrusions, there will be a certain shadow on its surface, while the back side of the material is a plane and there will be no shadow on its surface) to judge whether the passing material is facing up or facing up (the front side of the material has different protrusions or depressions, while the back side of the material is a flat surface). If the passing material is facing up, the controller 7 will judge the image according to the internally set image judgment formula. The controller 7 will not control the start of the first air nozzle 5, so that the material will directly move through the first air nozzle 5 to the output end of the second conveyor belt 16 and move to the guide frame 8 after passing through the visual sensor 6, and finally enter the guide frame 8 through the feeding end on the guide frame 8; and when the material passes through the visual sensor 6 with the back side facing up, the controller 7 will control the start of the first air nozzle 5 for a certain time after a certain time (just the distance for the material to move from the visual sensor 6 to the opposite side of the first air nozzle 5), and use the first air nozzle 5 to blow the material from the second conveyor belt 16 to the first conveyor belt 15, and then the first conveyor belt 15 will re-transport it to the guide member 17 and push it back to the second transmission belt 16 for material feeding and direction selection, and the entire material selection work is completed.
[0035] When the selected materials move to the input end of the guide frame 8 along the second conveyor belt 16, and enter the guide frame 8 through the input end of the guide frame 8 one by one, the controller 7 will control the corresponding second air nozzle 9 to start according to the built-in control process, and use the second air nozzle 9 to blow the materials to one side, and then cooperate with the position of the guide frame 8 corresponding to the upper frame 1 as an inclined surface, so that the materials can automatically slide to the discharge position of the guide frame (that is, move along the oblique baffle 21 to the vertical baffle 22); in order to enable the second air nozzle 9 to The materials are discretely blown into the guide frame, and the activation time of the second air nozzle 9 or the blowing flow rate needs to be controlled according to the amount of material entering or the number of times the second air nozzle 9 is activated, so as to achieve the distance that the second air nozzle 9 blows the materials away from the second air nozzle 9. The different activation time or blowing flow rate of the second air nozzle 9 each time can control the different distances that the materials are blown by the second air nozzle 9, so that the materials can be discretely moved to the discharge position of the guide frame 8 (that is, between the two vertical blocks 22) and arranged and stored.
[0036] During the whole process, because there are two second air nozzles 9 in the device and they are respectively arranged on both sides of the feeding position of the guide frame 8 (for the convenience of subsequent description, the second air nozzle A and the second air nozzle B are used to distinguish them), in the specific discrete blowing process, only one of the second air nozzles A and the second air nozzle B is in working state at a time, and the two can adopt alternating working mode (that is, the second air nozzle A blows first, then the second air nozzle B blows, and then the second air nozzle A blows), or the second air nozzle A blows several times and then the second air nozzle B blows the same number of times, and then the second air nozzle A blows. The two air nozzles A blow the same number of times; at the same time, the blowing flow rate or blowing time of the same second air nozzle 9 each time also increases or decreases in a step-by-step manner; because a baffle 18 is installed on the guide frame 8, a gap is provided between the baffle 18 and the guide frame 8 for only a single material to pass through, and the baffle 18 can be used to block the material in the process of the material being discretely blown into the guide frame 8 and sliding to the discharge position of the guide frame 8, thereby preventing the material from turning over in the process, ensuring that the material is always in a state of facing up, and ensuring the stable progress of subsequent assembly line printing work.
[0037] After the materials that have completed the discrete arrangement work are neatly arranged between the two vertical stoppers 22, the materials in the front row will contact the feeding roller 24. At this time, the feeding motor 25 is controlled to start, and the feeding motor 25 will drive the feeding roller 24 to rotate. After the feeding roller 24 rotates, it will drive the brush members 26 on the surface to rotate together. In combination with the distance between each two adjacent brush members 26, there is only a gap for a single row of materials to pass through, so that the brush members 26 that first contact the materials during the rotation of the feeding roller 24 will push the materials in the front row to move to the space between the feeding roller 24 and the frame 1, and finally The material in the rear row is pushed to the feeding end of the third conveyor belt 23; at the same time, the brush member 26 at the rear will block the material in the rear row to prevent the material in the rear row from moving to the third conveyor belt 23 together with the material in the front row, so that each time the feeding roller 24 rotates, only a single row of material is fed; when the single row of material is transported to the third conveyor belt 23, the third motor is controlled to start for a certain period of time, and after the third motor is started, it will drive the third driving shaft to rotate, and after the third driving shaft rotates, it will drive the third conveyor belt 23 to move toward the printing area of the flow printing device, and during the movement of the third conveyor belt 23, the third driven wheelbase will be driven to rotate. With the cooperation of the rotating third driving shaft and the third driven shaft, the third conveyor belt 23 can move in a circular motion; because the width of the third conveyor belt 23 is adapted to the printing feed width of the assembly line printing device, the third conveyor belt 23 that moves in a circular motion can stably move the material to just below the printing end of the assembly line printing device to complete the loading work; during the movement of the third conveyor belt 23, the encoder 29 used to detect the conveying state of the third conveyor belt 23 will synchronously detect the conveying state of the third conveyor belt 23, and after the third conveyor belt 23 stops, the encoder 29 can detect the third The data of the moving distance, moving time and start / stop status of the conveyor belt 23 are sent to the controller 7; the controller 7 controls the starting time of the feeding motor 25 according to the received data information, and then controls the rotation angle of the feeding roller 24, so that the feeding speed of the feeding roller 24 and the feeding speed of the third conveyor belt 23 are finally coordinated with each other, and the material will not accumulate on the third conveyor belt 23. While ensuring the working stability, the rotation of the feeding roller 24 can be well coordinated with the movement of the third conveyor belt 23, without manual adjustment, which is convenient to use and improves the flexibility of use.
[0038] When the length or height of the material to be printed changes, it is necessary to adjust the positions of the material stopper 3, the height limiter 4 and the baffle 18 accordingly; when adjusting the material stopper 3, it is only necessary to control the adjustment servo motor 11 to start. After the adjustment servo motor 11 is started, it will drive the adjustment ball screw 12 to rotate. After the adjustment ball screw 12 rotates, it will drive the adjustment seat to move left and right on the horizontal plane. The moving direction of the adjustment seat is perpendicular to the moving direction of the second conveyor belt 16. During the movement of the adjustment seat, the material stopper 3 will be driven to move, thereby completing the distance between the discharge end of the material stopper 3 and the edge of the second conveyor belt 16. After the adjustment is completed, it is only necessary to control the adjustment servo motor 11 to stop; when the height limiter 4 needs to be adjusted in position, it is only necessary to control the height adjustment servo motor 14 to start When the height adjustment servo motor 14 is started, it will drive the height adjustment ball screw 13 to rotate. After the height adjustment ball screw 13 rotates, it will drive the height adjustment seat to move up and down in the vertical direction. During the movement of the height adjustment seat, it will drive the height limiter 4 to move, thereby adjusting the vertical distance between the height limiter 4 and the discharge end of the material blocking member 3; when the position of the baffle 18 needs to be adjusted, it is only necessary to control the baffle lifting servo motor 20 to start. After the baffle lifting servo motor 20 is started, it will drive the baffle lifting ball screw 19 to rotate. After the baffle lifting ball screw 19 rotates, it will drive the baffle lifting seat to move. When the baffle lifting seat moves, it will drive the baffle 18 to move together, thereby completing the adjustment of the distance between the baffle 18 and the guide frame 8, so as to facilitate the passage of materials at different heights and expand the scope of application.
Claims
1. An automatic material feeder for printing on an assembly line, comprising a frame (1), a material feed bin (2) for storing materials, a conveying device for driving the materials to move, and a material transfer device for transferring the materials from the material feed bin (2) to the conveying device, characterized in that: The conveying device is provided with a material blocking member (3) for only a single row of materials to pass through, and a height limiting member (4) for only a single material to pass through is provided above the material discharging position of the material blocking member (3); a first air nozzle (5) for blowing the material out of the conveying device is provided on one side of the material blocking member (3), a visual sensor (6) is provided between the first air nozzle (5) and the material blocking member (3), and a controller (7) capable of controlling the start and stop of the first air nozzle (5) is electrically connected to the visual sensor (6); the material blocking member (3), the height limiting member (4), the visual sensor (6) and the first air nozzle (5) are arranged in sequence along the conveying direction of the conveying device; the height limiting member (4) is connected to a rotating motor (10) for driving the height limiting member (4) to rotate, and the rotating direction of the rotating motor (10) is the direction in which the material exceeding the height limit is rotated away from the conveying device.
2. The automatic loading machine for printing on the assembly line according to claim 1, characterized in that: The portion of the height limiting member (4) that contacts the material is a brush structure, and the brush structure is arranged on the bottom surface of the height limiting member (3).
3. The automatic loading machine for printing on the assembly line according to claim 1 or 2, characterized in that: The discharge end of the conveying device is connected to a guide frame (8) which is arranged obliquely and has a flared shape, and the width of the guide frame (8) at the discharge position is the same as the width of the assembly line printing device; a second air nozzle (9) for discretely blowing the material is arranged at the feed position of the guide frame (8).
4. The automatic loading machine for printing on the assembly line according to claim 3, characterized in that: Two second air nozzles (9) are provided, and the two second air nozzles (9) are symmetrically arranged at the feeding position of the flow guide frame (8); only one of the two second air nozzles (9) is in working state at a time, and each second air nozzle (9) is connected to a valve for controlling the start and stop of the second air nozzle (9), and the valve is electrically connected to the controller (7).
5. The automatic loading machine for printing on the assembly line according to claim 3, characterized in that: The guide frame (8) comprises two symmetrically distributed oblique baffles (21), and a vertical baffle (22) is provided at the end of each oblique baffle (21) away from the conveying device; the second air nozzle (9) is provided on the oblique baffle (21); and a baffle (18) for only a single flat material to pass through is provided between the ends of all the oblique baffles (21) and the vertical baffles (22).
6. The automatic loading machine for printing on the assembly line according to claim 5, characterized in that: A third conveyor belt (23) adapted to the assembly line printing device is connected to the discharge position of the guide frame (8), and the two ends of the third conveyor belt (23) are respectively connected to a third driving shaft and a third driven shaft; the third driving shaft is connected to a third motor, and an encoder (29) for detecting the moving distance and start / stop state of the third conveyor belt (23) is arranged on the third conveyor belt (23); a feeding roller (24) is arranged above the feeding end of the third conveyor belt (23), and the end of the feeding roller (24) is connected to a feeding motor (25); a plurality of radially distributed brush members (26) are arranged on the surface of the feeding roller (24), and a gap for only a single row of materials to pass through is arranged between each two adjacent brush members (26); the encoder (29) is electrically connected to the feeding motor (25) through a controller (7).
7. The automatic loading machine for printing on the assembly line according to claim 6, characterized in that: The material blocking member (3) is connected to a horizontal adjustment member capable of driving the material blocking member (3) to move in a horizontal direction perpendicular to the moving path of the conveying device; the height limiting member (4) is connected to a height lifting member capable of driving the height limiting member (4) to move in a vertical direction perpendicular to the conveying device; and the baffle plate (18) is connected to a baffle plate lifting device for driving the baffle plate (18) to move in a vertical direction perpendicular to the guide frame (8).
8. The automatic loading machine for printing on the assembly line according to claim 7, characterized in that: The horizontal adjustment member comprises a gantry frame arranged above the first transmission device, the gantry frame is provided with an adjustment servo motor (11), and the adjustment servo motor (11) is connected to a horizontally arranged adjustment ball screw (12); an adjustment seat is slidably mounted on the adjustment ball screw (12); the material blocking member (3) is mounted on the adjustment seat; the height lifting member comprises a height adjustment ball screw (13) vertically arranged on the side of the gantry frame, and the end of the height adjustment ball screw (13) is connected to a height adjustment servo motor (14); a height adjustment lifting seat is slidably mounted on the height adjustment ball screw (13), and the height limit member (4) and the rotating motor (14) are connected to the height adjustment servo motor (14); The machine (10) is arranged on a height-adjustable lifting seat; the baffle lifting device comprises a baffle lifting ball screw (19) arranged perpendicularly to the guide frame (8), and the end of the baffle lifting ball screw (19) is connected to a baffle lifting servo motor (20); a baffle lifting seat is slidably mounted on the baffle lifting ball screw (19), and the baffle (18) is mounted on the baffle lifting seat; both ends of the feeding roller (24) are rotatably mounted with connecting seats, and each connecting seat is slidably mounted with a feeding ball screw (27) arranged perpendicularly to the guide frame (8), and a feeding servo motor (28) is mounted on the end of each feeding ball screw (27).
9. The automatic loading machine for printing on the assembly line according to claim 3, characterized in that: The conveying device comprises a first conveyor belt (15) and a second conveyor belt (16) arranged side by side, both ends of the first conveyor belt (15) and the second conveyor belt (16) are provided with a driving shaft and a driven shaft, each driving shaft is connected to a driving motor, and the conveying direction of the first conveyor belt (15) is opposite to that of the second conveyor belt (16); the first conveyor belt (15) is provided with a guide member (17) for pushing the material onto the second conveyor belt (16), and the first conveyor belt (15) is arranged below the material dropping position of the material moving device; the material blocking member (3) and the height limiting member (17) are provided at the bottom of the conveyor belt (16); The positioning member (4), the visual sensor (6) and the first air nozzle (5) are all arranged on the second conveyor belt (16); when multiple materials on the second conveyor belt (16) pass through the material blocking member (3) at the same time, the material blocking member (3) only allows one material to pass along the second conveyor belt (16), and the material blocking member (3) pushes more than one material onto the first conveyor belt (15); a gap is provided between the side of the guide member (17) away from the second conveyor belt (16) and the edge of the first conveyor belt (15); the feed bin (2) is arranged directly below the output end of the first conveyor belt (15).
10. The automatic loading machine for printing on the assembly line according to claim 9, characterized in that: The material moving device comprises a lifting frame (30), on which an inclined lifting conveyor belt (31) is arranged; a plurality of evenly distributed partitions (32) are arranged on the surface of the lifting conveyor belt (31), and a lifting driving shaft and a lifting driven shaft are respectively arranged at the two ends of the lifting conveyor belt (31), and the ends of the lifting driving shaft are connected to a lifting motor; a receiving hopper (33) is arranged directly below the dropping position of the lifting conveyor belt (31), and a discharging channel is arranged at an inclined position at the bottom end of the receiving hopper (33); the discharging end of the discharging channel is arranged directly above the first conveyor belt (15), and an upper baffle is arranged on the top surface of the discharging channel to prevent materials from falling out.