A feeding device and its control method

Abstract

The present invention discloses a feeding device and a control method thereof. The feeding device includes a bin mechanism, a feeding mechanism, and a gear transmission mechanism. The bin mechanism includes a bin, a tray, and a driven gear assembly disposed in the bin, and the driven gear assembly is used to drive the tray to move. The feeding mechanism includes a driving gear assembly. The gear transmission mechanism is disposed between the bin mechanism and the feeding mechanism, and the gear transmission mechanism engages or disengages with the driving gear assembly and the driven gear assembly. Wherein, when the gear transmission mechanism engages, the driving gear assembly drives the driven gear assembly to drive the tray to move from the bin to the feeding mechanism for feeding. The present invention uses the engagement of the gear transmission mechanism with the driving gear assembly and the driven gear assembly to transmit power and convey the tray, greatly improving the reliability, stability, service efficiency, and service life of the feeding device.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding, and particularly to a feeding device and a control method thereof. Background Art

[0002] With the development of industrial level, more and more automated production equipment replaces traditional manual operations. In the automated production process, it includes steps of supplying incoming materials, processing, and feeding. Among them, for the supply of incoming materials, there are various feeding mechanisms according to their sources, material characteristics, etc. Among them, the tray storage type feeder has obvious advantages for relatively large workpieces. It can achieve direct feeding of multiple trays, and the trays can be automatically recycled, with small space requirements, reducing the frequency of employees' intervention in the equipment, reducing the labor intensity of employees and the labor cost of enterprises.

[0003] The current feeder uses fixed plastic wheels, relying on the friction between them to transmit power, so as to realize the conveying of the trays. However, the service life of this structure is short. The plastic wheels are easily worn due to long-term friction. After wear, slipping will occur, resulting in the failure of tray conveying. Moreover, the plastic wheels need to be frequently replaced during maintenance, seriously affecting the operation efficiency of the whole machine. Summary of the Invention

[0004] Embodiments of the present invention provide a feeding device and a control method thereof, aiming to solve the problems of low reliability and low feeding efficiency of the existing feeder using plastic wheel friction drive.

[0005] The present invention provides a feeding device, including: a bin mechanism, a feeding mechanism, and a gear transmission mechanism. The bin mechanism includes a bin, trays and a driven gear assembly arranged in the bin, and the driven gear assembly is used to drive the trays to move; the feeding mechanism includes a driving gear assembly; the gear transmission mechanism is arranged between the bin mechanism and the feeding mechanism, and the gear transmission mechanism engages or separates from the driving gear assembly and the driven gear assembly; wherein, when the gear transmission mechanism engages, the driving gear assembly drives the driven gear assembly to drive the trays to move from the bin to the feeding mechanism for feeding.

[0006] In the feeding device provided by the present invention, the gear transmission mechanism includes a bracket, a first sliding member, a second sliding member, and a transmission gear. The first sliding member is slidably installed on the bracket, the first sliding member moves along a first direction, the second sliding member is slidably installed on the first sliding member, the second sliding member moves along a second direction, and the second sliding member is connected to the transmission gear; wherein, sliding the first sliding member and the second sliding member enables the transmission gear to engage or separate from the driving gear assembly and the driven gear assembly.

[0007] In the feeding device provided by the present invention, there are two first sliding members and two second sliding members. The first direction is the horizontal direction, and the second direction is the vertical direction. When the transmission gears are separated, the two first sliding members move towards each other in the horizontal direction, and the two second sliding members move downward in the vertical direction; and / or when the transmission gears are engaged, the two first sliding members move away from each other in the horizontal direction, and the two second sliding members move upward in the vertical direction.

[0008] In the feeding device provided by the present invention, the gear transmission mechanism further includes a gear mounting seat. The transmission gear is rotatably mounted on the gear mounting seat, and the gear mounting seat is fixedly connected to the second sliding member.

[0009] In the feeding device provided by the present invention, the driven gear assembly includes a driven shaft and a driven gear that rotates coaxially with the driven shaft. The driving gear assembly includes a driving shaft and a driving gear that rotates coaxially with the driving shaft. Among them, both the driving gear and the driven gear are engaged with the transmission gear.

[0010] In the feeding device provided by the present invention, the silo mechanism further includes a lifting assembly. The lifting assembly is connected to the silo. The silo is provided with a plurality of storage layers arranged in layers along the height direction. Each storage layer includes a tray and a driven gear assembly. The lifting assembly is used to drive the silo to rise or fall to switch the trays.

[0011] In the feeding device provided by the present invention, the silo is also provided with a plurality of limiting mechanisms corresponding to the height of each storage layer. The limiting mechanism includes a stopper. The stopper is telescopically inserted into the silo to block or release the tray.

[0012] In the feeding device provided by the present invention, the feeding device further includes a frame. An inclined block is fixedly provided on the frame, and the height of the inclined block corresponds to the height of the feeding mechanism. The limiting mechanism includes a fixed seat, an elastic member, a connecting rod, and a rolling member. The fixed seat is fixedly provided on the silo. The stopper is slidably connected to the fixed seat. The connecting rod is fixedly provided on the stopper. The rolling member is connected to the connecting rod. One end of the elastic member abuts against the stopper, and the other end abuts against the fixed seat. When the lifting assembly drives the silo to rise and fall, the rolling member abuts against the inclined block, and the rolling member moves along the inclined block, driving the stopper to retract from the silo to the outside of the silo.

[0013] In the feeding device provided by the present invention, the outer contour of the inclined block is drum-shaped, and the rolling member moves along the drum shape.

[0014] The present invention also provides a control method for a feeding device, where the feeding device is the feeding device described above. The control method includes: controlling the gear transmission mechanism to engage with the driving gear assembly and the driven gear assembly of the nth layer to convey the nth layer of trays; detecting whether there is a tray in the transition area; if there is no tray in the transition area, controlling the gear transmission mechanism to separate from the driving gear assembly and the driven gear assembly of the nth layer; driving the magazine to rise to the (n + 1)th layer; returning to execute controlling the gear transmission mechanism to engage with the driving gear assembly and the driven gear assembly of the (n + 1)th layer to convey the (n + 1)th layer of trays; circulating to convey the trays of each layer until all trays are conveyed and a material shortage is prompted when finished.

[0015] The present invention provides a feeding device and a control method therefor. The feeding device includes a magazine mechanism, a feeding mechanism, and a gear transmission mechanism. The magazine mechanism includes a magazine, trays provided in the magazine, and a driven gear assembly, where the driven gear assembly is used to drive the trays to move; the feeding mechanism includes a driving gear assembly; the gear transmission mechanism is provided between the magazine mechanism and the feeding mechanism, and the gear transmission mechanism engages with or separates from the driving gear assembly and the driven gear assembly; wherein, when the gear transmission mechanism engages, the driving gear assembly drives the driven gear assembly to drive the trays to move from the magazine to the feeding mechanism for feeding. By engaging the gear transmission mechanism with the driving gear assembly and the driven gear assembly to transmit power and convey the trays, the present invention can, according to the meshing characteristics of the gears and the stability of power transmission, greatly improve the reliability, stability, service efficiency, and service life of the feeding device compared with the existing rubber wheels with friction drive, and can play a role in saving energy consumption. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the feeding device according to an embodiment of the present invention;

[0018] Figure 2 It is a partial schematic diagram of the feeding device according to an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the magazine mechanism of the feeding device according to an embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram when the gear transmission mechanism of the feeding device according to an embodiment of the present invention engages;

[0021] Figure 5 Schematic diagram of the driven gear assembly of the feeding device according to an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the driving gear assembly of the feeding device according to an embodiment of the present invention;

[0023] Figure 7 Top view schematic diagram of the feeding device according to an embodiment of the present invention;

[0024] Figure 8 Schematic diagram of the gear transmission mechanism of the feeding device according to an embodiment of the present invention;

[0025] Figure 9 Partial front view schematic diagram of the feeding device according to an embodiment of the present invention;

[0026] Figure 10 Partial schematic diagram and partial enlarged view of the feeding device according to an embodiment of the present invention;

[0027] Figure 11 Schematic diagram of the storage bin of the feeding device according to an embodiment of the present invention;

[0028] Figure 12 Schematic diagram of the step flow of the control method of the feeding device according to an embodiment of the present invention; Description of the drawings:

[0030] 1. Storage bin mechanism; 11. Storage bin; 12. Driven gear assembly; 121. Driven shaft; 122. Driven gear; 13. Feeding tray; 14. Lifting assembly; 15. Frame; 16. Wedge block; 2. Limiting mechanism; 21. Stopper; 22. Fixed seat; 23. Elastic member; 24. Connecting rod; 25. Rolling member; 3. Feeding mechanism; 31. Driving gear assembly; 311. Driving shaft; 312. Driving gear; 4. Gear transmission mechanism; 41. First sliding member; 42. Second sliding member; 43. Bracket; 44. Transmission gear; 45. Gear mounting seat; 5. Electrical control cabinet. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only references to the directions in the attached drawings. Therefore, the directional terms used are for explaining and understanding the present invention, rather than for limiting the present invention. In addition, in the drawings, structures that are similar or identical are denoted by the same reference numerals.

[0033] Please refer to Figure 1 , Figure 1 , which is a schematic diagram of a feeding device in an embodiment of the present invention. The feeding device includes a silo 11 mechanism 1, a feeding mechanism 3, a gear transmission mechanism 4, a limiting mechanism 2, and an electrical control cabinet 5. The structure and working principle of the feeding device will be described in detail below with reference to the accompanying drawings of the specification.

[0034] Referring to Figure 1 and Figure 2 , an embodiment of the present invention provides a feeding device, including: a silo 11 mechanism 1, a feeding mechanism 3, and a gear transmission mechanism 4. The silo 11 mechanism 1 includes a silo 11, a tray 13 and a driven gear 122 assembly 12 disposed in the silo 11. The driven gear 122 assembly 12 is used to drive the tray 13 to move. The feeding mechanism 3 includes a driving gear 312 assembly 31. The gear transmission mechanism 4 is disposed between the silo 11 mechanism 1 and the feeding mechanism 3, and the gear transmission mechanism 4 engages or disengages with the driving gear 312 assembly 31 and the driven gear 122 assembly 12. Wherein, when the gear transmission mechanism 4 engages, the driving gear 312 assembly 31 drives the driven gear 122 assembly 12 to drive the tray 13 to move from the silo 11 to the feeding mechanism 3 for feeding.

[0035] By implementing this embodiment, the gear transmission mechanism 4 is used to engage with the driving gear 312 assembly 31 and the driven gear 122 assembly 12 to transmit power and convey the tray 13. According to the meshing characteristics of the gears and the stability of power transmission, compared with the existing friction-driven rubber wheels, the reliability, stability, service efficiency and service life of the feeding device are greatly improved, and the energy consumption can be saved. Moreover, the gear transmission mechanism 4 can also be separated from the driving gear 312 assembly 31 and the driven gear 122 assembly 12 to cut off the power transmission, so that employees can replace the used tray 13 and cloth in time.

[0036] Referring to Figure 3, specifically, the silo 11 mechanism 1 includes a silo 11 and a lifting component 14. The lifting component 14 is connected to the silo 11 and is used to drive the silo 11 to rise or fall. The lifting component 14 includes a motor, a lead screw, and a guide rail. The motor drives the lead screw to rotate. The movable end on the lead screw is fixed to the silo 11. When the motor is started, the movable end moves along the lead screw, thereby driving the silo 11 to lift and lower. Among them, the guide rail is connected to the silo 11, and the silo 11 moves along the guide rail to ensure the stability of the silo 11 during the lifting and lowering process.

[0037] Refer to Figure 4 and Figure 5 , several storage layers are provided in the silo 11. The several storage layers are arranged in layers along the height direction of the silo 11. Each storage layer includes a tray 13 and a driven gear 122 assembly 12. The driven gear 122 assembly 12 includes a driven shaft 121 and a driven gear 122 that rotates coaxially with the driven shaft 121. The driven gear 122 is used to receive the transmitted power to drive the driven shaft 121 to rotate. The driven shaft 121 is installed in the silo 11 through a bearing 25 and is located on the front side of the silo 11 (the side facing the feeding mechanism 3). Two synchronous pulleys are also provided on the driven shaft 121, namely a left front synchronous pulley and a right front synchronous pulley, which are respectively located on the left and right side plates of the silo 11. A rotating shaft is also installed on the rear side of the silo 11 (the side away from the feeding mechanism 3). Two synchronous pulleys are provided on the rotating shaft, namely a left rear synchronous pulley and a right rear synchronous pulley, which are also respectively located on the left and right side plates of the silo 11; of course, it can be understood that the left rear synchronous pulley and the right rear synchronous pulley can be rotatably installed on the left and right side plates respectively without setting a rotating shaft, and the specific structural form is not limited here. A left synchronous belt is sleeved outside the left front synchronous pulley and the left rear synchronous pulley, and a right synchronous belt is sleeved outside the right front synchronous pulley and the right rear synchronous pulley. The tray 13 is placed on the left synchronous belt and the right synchronous belt. Thus, when the driven gear 122 receives the transmitted power, it drives the driven shaft 121 to rotate. The synchronous pulleys rotate accordingly and then drive the synchronous belt to move the tray 13 forward, thereby conveying the tray 13 from the silo 11 to the feeding mechanism 3.

[0038] Refer to Figure 4 and Figure 6, the feeding mechanism 3 is arranged on the electric control cabinet 5 and has a certain height. The feeding mechanism 3 is adjacent to the bin mechanism 1. The feeding mechanism 3 includes a driving shaft 311 and a driving gear 312 that rotates coaxially with the driving shaft 311. The driving shaft 311 is driven by a servo motor to rotate, thereby driving the driving gear 312 to rotate to transmit power. Two synchronous pulleys are also arranged on the driving shaft 311, namely the first synchronous pulley and the second synchronous pulley. The feeding mechanism 3 further includes a third synchronous pulley and a fourth synchronous pulley. The third synchronous pulley and the fourth synchronous pulley are rotatably installed on the electric control cabinet 5. A first synchronous belt is sleeved outside the first synchronous pulley and the third synchronous pulley, and a second synchronous belt is sleeved outside the second synchronous pulley and the fourth synchronous pulley. When feeding, the tray 13 is placed on the first synchronous belt and the second synchronous belt. Among them, the first synchronous belt and the second synchronous belt correspond to the left synchronous belt and the right synchronous belt of the bin mechanism 1, that is, the output side conveyed by the left synchronous belt and the right synchronous belt is opposite to the input side conveyed by the first synchronous belt and the second synchronous belt. Thus, when feeding, the servo motor drives the driving shaft 311 to rotate, and the driving gear 312 rotates synchronously. The driving gear 312 transmits power to the driven gear 122 assembly 12 in the bin mechanism 1. The driven gear 122 assembly 12 drives the left synchronous belt and the right synchronous belt to convey the tray 13 forward to the first synchronous belt and the second synchronous belt, and the first synchronous belt and the second synchronous belt then convey the material to the external material-using equipment for feeding.

[0039] Refer to Figure 7 , the gear transmission mechanism 4 is arranged between the bin mechanism 1 and the feeding mechanism 3. A transition area M is arranged between the bin mechanism 1 and the feeding mechanism 3. The gear transmission mechanism 4 is arranged on the transition area M. A sensor is arranged on the transition area M. The sensor is configured to detect whether the tray 13 exists. If the tray 13 is detected to exist, it means that the tray 13 is still in the conveying process. If the tray 13 is detected to not exist, it means that the tray 13 has been conveyed. Among them, the sensor can be an infrared sensor or a detection element such as a proximity switch, which is not limited here. The gear transmission mechanism 4 includes a bracket 43, a first sliding member 41, a second sliding member 42, and a transmission gear 44. The first sliding member 41 is slidably installed on the bracket 43. The first sliding member 41 moves along a first direction. The second sliding member 42 is slidably installed on the first sliding member 41. The second sliding member 42 moves along a second direction. The second sliding member 42 is connected to the transmission gear 44. Among them, slide the first sliding member 41 and the second sliding member 42 so that the transmission gear 44 engages or separates from the driving gear 312 assembly 31 and the driven gear 122 assembly 12.

[0040] Refer to Figure 8, in this embodiment, there are two first sliding members 41 and two second sliding members 42. The first direction is the horizontal direction and the second direction is the vertical direction. Both the first sliding member 41 and the second sliding member 42 are cylinder slides. The first sliding member 41 is specifically a transverse cylinder slide, and the second sliding member 42 is specifically a longitudinal cylinder slide. The bracket 43 is a gantry, and the bracket 43 can be installed on the feeding mechanism 3. The bracket 43 includes a cross beam and two feet perpendicular to the cross beam, and the two feet are located at both ends of the cross beam. The two transverse cylinder slides are installed on the two feet. The transverse cylinder slide includes a transverse slide and a transverse slider. The transverse slide is fixed on the foot, and the transverse slider is connected to the transverse slide, and the transverse slider can move horizontally along the transverse slide. The two longitudinal cylinder slides are respectively installed on the transverse sliders of the two transverse cylinder slides. The longitudinal cylinder slide includes a longitudinal slide and a longitudinal slider. The longitudinal slide is fixed on the transverse slider, and the longitudinal slider is connected to the longitudinal slide, and the longitudinal slider can move longitudinally along the longitudinal slide. Since the longitudinal slide is fixed on the transverse slider, when the transverse slider moves horizontally, it drives the entire longitudinal cylinder slide to move horizontally.

[0041] Continue to refer to Figure 8 , in a specific implementation, the gear transmission mechanism 4 further includes a gear mounting seat 45. The transmission gear 44 is rotatably installed on the gear mounting seat 45, and the gear mounting seat 45 is fixedly connected to the second sliding member 42. Specifically, the gear mounting seat 45 has two mounting ears, and a rotating shaft is assembled between the two mounting ears. The transmission gear 44 is inserted through the rotating shaft and rotates coaxially with the rotating shaft. There are two gear mounting seats 45, and the two gear mounting seats 45 are respectively fixed on the two longitudinal sliders of the two longitudinal cylinder slides and move with the longitudinal sliders. Thus, by moving the longitudinal cylinder slide and the transverse cylinder slide, the transmission gear 44 can be driven to move, and then engage or disengage with the driving gear 312 and the driven gear 122.

[0042] Continue to refer to Figure 8, during specific control, the transmission gear 44 has two position states, namely the engaged state and the released state. When the transmission gear 44 is in the separated state, the two first sliding members 41 move towards each other in the horizontal direction, and the two second sliding members 42 move downward in the vertical direction. Specifically, the two cross-slide cylinders extend inward, and the two longitudinal-slide cylinders retract downward, driving the transmission gear 44 to disengage from the driving gear 312 and the driven gear 122, being in the released state, cutting off the power transmission between the driving gear 312 and the driven gear 122, and avoiding the driving gear 312 and the driven gear 122 to prevent collision. When the transmission gear 44 is in the engaged state, the two first sliding members 41 move away from each other in the horizontal direction, and the two second sliding members 42 move upward in the vertical direction. Specifically, the two cross-slide cylinders retract outward, and the two longitudinal-slide cylinders extend upward, driving the transmission gear 44 to engage with the driving gear 312 and the driven gear 122, being in the engaged state, realizing the power transmission between the driving gear 312 and the driven gear 122, so that the driving gear 312 can drive the driven gear 122 to rotate.

[0043] Refer to Figure 3 , in an embodiment, a plurality of limiting mechanisms 2 corresponding to the height of each storage layer are further provided on the storage bin 11. The limiting mechanism 2 includes a stop block 21, and the stop block 21 is telescopically inserted into the storage bin 11 to block or release the tray 13. Specifically, a plurality of through holes are formed in the left and right side plates of the storage bin 11, and the height of the through hole is the same as the height of each storage layer, and the through hole is close to the front side of the storage bin 11 (the side facing the feeding mechanism 3). The stop block 21 is a movable structure. The stop block 21 can extend into the storage bin 11 through the through hole to block the tray 13, preventing the tray 13 from exceeding the storage bin 11. If the tray 13 exceeds the storage bin 11, it will cause the tray 13 to collide with other components (such as the gear transmission mechanism 4) and jam during the lifting of the storage bin 11, even causing serious damage to the machine, as Figure 3 shown in the area P in. Therefore, each storage layer in this embodiment is provided with a limiting mechanism 2 to limit the tray 13. When replenishing materials, the operator only needs to push the tray 13 inward until it is blocked by the stop block 21, without worrying about whether the position of the tray 13 is in place, and it will not cause the problem that the storage bin 11 is stuck by the tray 13 during the lifting process. It should be noted that there are various forms of the movable structure of the stop block 21. No matter what structure it is, as long as it can realize movable telescoping, it is not limited here. The following provides a preferred implementation manner in this embodiment.

[0044] Refer to Figures 9 - 11, in this embodiment, the feeding device further includes a frame 15, on which an inclined block 16 is fixedly provided, and the height of the inclined block 16 corresponds to the height of the feeding mechanism 3; the limiting mechanism 2 includes a fixed seat 22, an elastic member 23, a connecting rod 24 and a rolling member 25. The fixed seat 22 is fixedly provided on the storage bin 11, the stopper 21 is slidably connected to the fixed seat 22, the connecting rod 24 is fixedly provided on the stopper 21, the rolling member 25 is connected to the connecting rod 24, and one end of the elastic member 23 abuts against the stopper 21 and the other end abuts against the fixed seat 22. Wherein, when the lifting assembly 14 drives the storage bin 11 to lift, the rolling member 25 abuts against the inclined block 16, and the rolling member 25 moves along the inclined block 16, driving the stopper 21 to retract from the storage bin 11 to the outside of the storage bin 11.

[0045] Continue to refer to Figures 9 - 11 , specifically, the frame 15 can be the frame 15 of the feeding mechanism 3 or the frame 15 of other components, as long as it does not move with the storage bin 11. When the storage bin 11 is lifted or lowered, the position of the frame 15 is fixed, that is, the frame 15 is stationary. The inclined block 16 is provided on the frame 15, and the height of the inclined block 16 is consistent with the height of the feeding mechanism 3. The inclined block 16 is used to drive the stopper 21 to switch from the blocking state to the releasing state, thereby releasing the tray 13. Therefore, this position of the inclined block 16 is the feeding layer. Two limiting mechanisms 2 are arranged on each storage layer, respectively on both sides of the left and right side plates of the storage bin 11. The two fixed seats 22 are respectively fixed on the outer sides of the left and right side plates of the storage bin 11. The stopper 21 is connected to the fixed seat 22 and can slide along the fixed seat 22. The stopper 21 extends into the storage bin 11 through the through hole on the side plate. One end of the connecting rod 24 is fixed to the end of the stopper 21 outside the storage bin 11, and the other end of the connecting rod 24 is installed with a rolling member 25. The rolling member can be a bearing, and the connecting rod 24 is perpendicular to the stopper 21. When the lifting assembly 14 drives the storage bin 11 to lift or lower, the limiting mechanism 2 also follows the lifting or lowering. The inclined block 16 is fixed on the frame 15 and does not move with the lifting or lowering of the storage bin 11. Therefore, during the lifting or lowering process of the storage bin 11, the rolling member 25 on the limiting mechanism 2 will abut against the inclined block 16. By rolling the rolling member 25 along the inclined surface of the inclined block 16, the stopper 21 is driven to expand outwards from the storage bin 11, and then the stopper 21 is retracted from the storage bin 11 to the outside of the storage bin 11. At this time, the stopper 21 is in the releasing state, and the tray 13 can be conveyed forward to the feeding mechanism 3. When the rolling member 25 is disengaged from the abutment with the inclined block 16, under the action of the elastic member 23, the stopper 21 rebounds and extends into the storage bin 11 from the outside of the storage bin 11. At this time, the stopper 21 is in the blocking state. Among them, the elastic member 23 can be a compression spring, and both ends of the compression spring are connected to the fixed seat 22 and the stopper 21 to achieve reset through the compression spring.

[0046] Continue to refer to Figures 9 - 11, Further, the outer contour of the inclined block 16 is drum-shaped, and the rolling member 25 moves along the drum shape. The middle of the drum is high and the two sides are low. When the silo 11 rises, the rolling member 25 rolls along the drum shape, starting from the lower part on one side and rolling to the middle height, so that the stopper 21 is gradually pushed outwards until the stopper 21 is in the released state; when the silo 11 continues to rise, the rolling member 25 continues to roll along the drum shape, rolling from the highest part in the middle to the lower part on the other side, so that the stopper 21 gradually rebounds inwards until the stopper 21 is in the blocking state. Thus, by designing the outer contour of the inclined block 16 to be drum-shaped and cooperating with the rolling member 25, the switching between the blocking state and the released state of the stopper 21 is realized.

[0047] An embodiment of the present invention further provides a control method for a feeding device, where the feeding device is the feeding device described above. The feeding device has been described in detail in the above embodiments. For the sake of brevity of the specification, it will not be repeated here.

[0048] Referring to Figure 12 , Figure 12 is a schematic flow chart of the steps of a control method for a feeding device provided by an embodiment of the present invention. The control method includes steps S110-S160.

[0049] S110. Control the gear transmission mechanism 4 to engage with the driving gear 312 assembly 31 and the driven gear 122 assembly 12 of the nth layer to convey the nth layer of trays 13;

[0050] S120. Detect whether there is a tray 13 in the transition zone M;

[0051] S130. If there is no tray 13 in the transition zone M, control the gear transmission mechanism 4 to separate from the driving gear 312 assembly 31 and the driven gear 122 assembly 12 of the nth layer;

[0052] S140. Drive the silo 11 to rise to the (n + 1)th layer;

[0053] S150. Return to execute the control of the gear transmission mechanism 4 to engage with the driving gear 312 assembly 31 and the driven gear 122 assembly 12 of the (n + 1)th layer to convey the (n + 1)th layer of trays 13;

[0054] S160. Circulate and convey the trays 13 of each layer until all the trays 13 are conveyed and a lack of material is prompted.

[0055] In this embodiment, n is an integer, n≥1. Feeding starts from the first-layer tray 13. The first-layer tray 13 in the magazine 11 rises to the position of the feeding layer, and the stopper 21 corresponding to the first-layer tray 13 is pushed open by the inclined block 16 and is in a released state. First, control the gear transmission mechanism 4 to engage with the driving gear 312 assembly 31 and the driven gear 122 assembly 12 of the first layer to convey the first-layer tray 13. The first-layer tray 13 is conveyed from the magazine 11 to the feeding mechanism 3, and then is conveyed by the feeding mechanism 3 to feed the external material-using equipment. Then, use a sensor to detect whether there is a tray 13 in the transition area M between the magazine 11 mechanism 1 and the feeding mechanism 3. If there is a tray 13, it means the tray 13 is still being conveyed. If there is no tray 13, it means the tray 13 has been conveyed. At this time, control the gear transmission mechanism 4 to separate from the driving gear 312 assembly 31 and the driven gear 122 assembly 12 of the first layer, and cut off the power transmission between the driving gear 312 and the driven gear 122. Then, the lifting assembly 14 drives the magazine 11 to rise. The second-layer tray 13 reaches the position of the feeding layer, and the stopper 21 corresponding to the second-layer tray 13 is pushed open by the inclined block 16 and is in a released state. At this time, control the gear transmission mechanism 4 to engage with the driving gear 312 assembly 31 and the driven gear 122 assembly 12 of the second layer to convey the second-layer tray 13. The second-layer tray 13 is conveyed from the magazine 11 to the feeding mechanism 3, and then is conveyed by the feeding mechanism 3 to feed the external material-using equipment. According to the above steps, convey the third-layer tray 13, the fourth-layer tray 13 until the trays 13 of each layer are all conveyed. Finally, give a lack-of-material alarm to indicate a lack of material. After manually replacing and replenishing the material, continue to complete the feeding.

[0056] By implementing the control method of this embodiment, on the basis of the prior art, perform an upgrade transformation of power transmission. Change the original friction rubber wheels to steel gears. At the same time, the gears in the middle transition area M are composed of two sets of telescopic transmission gears 44. According to the working state of the feeding device, the PLC controls their positions. Use the driving gear 312 and the driven gear 122 of the driving shaft 311 and the driven shaft 121 to engage with the transmission gears 44 in the middle transition area M to achieve the purpose of stable power transmission. In addition, a limit mechanism 2 is provided on the side of the magazine 11 close to the driven shaft 121, which can completely prevent the tray 13 from being unlimited and exceeding the magazine 11 and entering the side of the driving shaft 311 during the feeding by the employee, thereby causing the clamping of the clamping plate when the magazine 11 side is lifted, or even damaging the equipment, and greatly improving the use efficiency and service life of the feeder.

[0057] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A feeding device, characterized in that, Comprising: A bin mechanism, including a lifting component, a bin, a tray and a driven gear assembly arranged in the bin. The driven gear assembly is used to drive the tray to move. The lifting component is connected to the bin. The bin is provided with a plurality of storage layers arranged in layers along its height direction. Each storage layer includes one tray and one driven gear assembly. The lifting component is used to drive the bin to rise or fall to switch the tray. The bin is also provided with a plurality of limiting mechanisms corresponding to the height of each storage layer. The limiting mechanism includes a stop block, a fixed seat, an elastic member, a connecting rod and a rolling member. The stop block is telescopically inserted into the bin to block or release the tray. The fixed seat is fixedly arranged on the bin. The stop block is slidably connected to the fixed seat. The connecting rod is fixedly arranged on the stop block. The rolling member is connected to the connecting rod. One end of the elastic member abuts against the stop block, and the other end abuts against the fixed seat; A feeding mechanism, including a driving gear assembly; A gear transmission mechanism arranged between the bin mechanism and the feeding mechanism. The gear transmission mechanism engages or disengages with the driving gear assembly and the driven gear assembly. Wherein, when the gear transmission mechanism engages, the driving gear assembly drives the driven gear assembly to drive the tray to move from the bin to the feeding mechanism for feeding; A frame, on which an inclined block is fixedly arranged, and the height of the inclined block corresponds to the height of the feeding mechanism; Wherein, when the lifting component drives the bin to rise and fall, the rolling member abuts against the inclined block, and the rolling member moves along the inclined block, driving the stop block to retract from the bin to the outside of the bin.

2. The feeding device according to claim 1, characterized in that, The gear transmission mechanism includes a bracket, a first sliding member, a second sliding member and a transmission gear. The first sliding member is slidably installed on the bracket. The first sliding member moves along a first direction. The second sliding member is slidably installed on the first sliding member. The second sliding member moves along a second direction. The second sliding member is connected to the transmission gear; wherein, by sliding the first sliding member and the second sliding member, the transmission gear engages or disengages with the driving gear assembly and the driven gear assembly.

3. The feeding device according to claim 2, characterized in that, There are two first sliding members and two second sliding members. The first direction is the horizontal direction, and the second direction is the vertical direction; Wherein, when the transmission gear is disengaged, the two first sliding members move towards each other in the horizontal direction, and the two second sliding members move downward in the vertical direction; and / or, when the transmission gear engages, the two first sliding members move away from each other in the horizontal direction, and the two second sliding members move upward in the vertical direction.

4. The feeding device according to claim 2, characterized in that The gear transmission mechanism further includes a gear mounting seat. The transmission gear is rotatably installed on the gear mounting seat. The gear mounting seat is fixedly connected to the second sliding member.

5. The feeding device according to claim 2, characterized in that, The driven gear assembly includes a driven shaft and a driven gear that rotates coaxially with the driven shaft, and the driving gear assembly includes a driving shaft and a driving gear that rotates coaxially with the driving shaft. Among them, both the driving gear and the driven gear are engaged with the transmission gear.

6. The feeding device according to claim 1, characterized in that, The outer contour of the inclined block is drum-shaped, and the rolling member moves along the drum shape.

7. A control method for a feeding device, characterized in that, Applied to the feeding device according to any one of claims 1-6, the control method includes: Controlling the gear transmission mechanism to engage with the driving gear assembly and the driven gear assembly of the nth layer to convey the nth layer of trays; Detecting whether there is a tray in the transition area; If there is no tray in the transition area, controlling the gear transmission mechanism to separate from the driving gear assembly and the driven gear assembly of the nth layer; Driving the silo to rise to the (n + 1)th layer; Returning to execute controlling the gear transmission mechanism to engage with the driving gear assembly and the driven gear assembly of the (n + 1)th layer to convey the (n + 1)th layer of trays; Circulating to convey the trays of each layer until all trays are conveyed and a lack of material is prompted.

Images