Filling equipment for veterinary drop production

Abstract

The invention discloses filling equipment for veterinary drop production, a filling mechanism for filling is mounted on the left rear side of a feeding mechanism in a lifting manner, an oscillator for feeding bottle caps is mounted on the right side of the upper part of a rack, and a screwing mechanism for screwing the bottle caps is mounted on the right side of the feeding mechanism in a lifting manner; a driving mechanism used for lifting the filling mechanism and the screwing mechanism is installed below the machine frame, the driving mechanism is further connected with the feeding mechanism, the feeding mechanism is arranged on the machine frame, the filling mechanism, the oscillator and the screwing mechanism are arranged on the feeding mechanism, and the filling mechanism, the screwing mechanism and the feeding mechanism are all connected with the driving mechanism. After the feeding mechanism enables the drop bottle above the feeding mechanism to deflect in place, the filling mechanism and the rotating mechanism can move downwards and conduct filling and screwing operation, so that the drop bottle and a bottle cap can be accurately located under the filling mechanism and the screwing mechanism, and the filling and screwing precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filling, and particularly to a filling device for the production of veterinary drops. Background Art

[0002] When producing veterinary drops, a rotary filling machine is usually used for filling. The existing rotary filling machine generally includes an intermittently rotating turntable. There are notches for feeding on the turntable. The drop bottles are placed in the notches and rotate with them. A filling device, an oscillator for feeding the bottle caps, and a screwing device are arranged on the turntable. After the turntable positions the drop bottles below these devices, the filling device and the screwing device move down respectively so that the filling head and the screwing sleeve are placed on the drop bottles, thereby performing filling and screwing operations. Since the filling device, the screwing device, and the turntable are all controlled by independent driving devices, when the rotation angle of the turntable is misaligned, it cannot be guaranteed that filling and screwing can be accurately performed. And it fails to ensure that the drop bottles can be placed in the notches and rotate with them. The size of the notches is usually the same as the outer diameter of the drop bottles. The two have a large friction between them so that the drop bottles will not rotate when screwing the bottle caps. When used for a long time, the inner wall of the notches is worn and the inner diameter increases and the surface becomes smooth, which will reduce the friction between the two, resulting in the drop bottles being prone to shaking in the notches. Thus, when screwing the bottle caps, the drop bottles themselves may rotate together, resulting in incomplete screwing. For this reason, we have designed a filling device for the production of veterinary drops. Summary of the Invention

[0003] A filling device for the production of veterinary drops proposed by the present invention solves the above problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A filling device for the production of veterinary drops includes a frame. An upper feeding mechanism is installed above the frame. An inlet conveyor belt is installed on the left side of the upper feeding mechanism. An outlet conveyor belt is installed on the front side of the upper feeding mechanism. A plurality of drop bottles are placed on the inlet conveyor belt. A filling mechanism for filling is installed on the left rear of the upper feeding mechanism in a lifting manner. An oscillator for feeding the bottle caps is installed on the upper right side of the frame. An oscillation track is arranged at the outlet of the oscillator. The other end of the oscillation track is above the upper feeding mechanism. A screwing mechanism for tightening the bottle caps is installed on the right side of the upper feeding mechanism in a lifting manner. A driving mechanism for the lifting of the filling mechanism and the screwing mechanism is installed below the frame. The driving mechanism is also connected to the upper feeding mechanism.

[0005] Preferably, the feeding mechanism includes a material blocking cover fixed above the machine frame through a bracket. A rotating material tray is rotatably installed inside the inner circle of the material blocking cover. A rotating shaft is fixed at the lower end of the rotating material tray. The rotating shaft is rotatably connected to the machine frame through a bearing, and the lower end of the rotating shaft passes through the machine frame and is located below it. An intermittent rotating sleeve is installed at the lower end of the rotating shaft, and the intermittent rotating sleeve is connected to a driving mechanism. A clamping structure for fixing the dropping bottle is also installed on the side of the material blocking cover.

[0006] Preferably, the material blocking cover includes a support ring fixed above the machine frame through a bracket. A side blocking ring is suspended above the support ring through a pillar. The inner diameter of the side blocking ring is larger than that of the support ring. Both the support ring and the side blocking ring are formed with openings after removing a part. These openings are used for the dropping bottle to enter and flow out of the feeding mechanism. The rotating material tray includes two turntables fixed on a rotating shaft. A plurality of uniformly distributed material clamping notches are formed at the edge of the turntable, and the material clamping notches on the upper and lower turntables correspond to each other one by one. The outlet of the oscillating track is directly above one of the material clamping notches. When the dropping bottle passes through this position, the bottle cap in the oscillating track can be pressed onto the bottle mouth of the dropping bottle. The size of the material clamping notch is the same as the outer diameter of the dropping bottle, and the outer diameter of the turntable is the same as the inner diameter of the side blocking ring. The outer diameter of the turntable is also smaller than the outer diameter of the support ring and larger than the inner diameter of the support ring.

[0007] Preferably, the clamping structure includes a side frame fixed on the outer surface of the outer circle of the side blocking ring by screws. Two round holes are formed in the side frame, and abutting rods are slidably inserted into the round holes. An abutting plate is fixed between the left ends of the two abutting rods. An offset plate is fixed at the right end of the abutting rod. An abutting spring is sleeved on the abutting rod, and both ends of the abutting spring abut against the offset plate and the side frame respectively. A rubber pad is arranged on the inner side surface of the abutting plate, which has a certain elasticity and can avoid pressing damage to the dropping bottle when contacting it.

[0008] Preferably, the filling mechanism includes a lifting sleeve fixed on the machine frame. A lifting rod is slidably inserted up and down inside the lifting sleeve. A lifting frame is installed above the lifting rod, and a filling head is installed on the lifting frame. An electromagnetic valve is installed at the top end of the filling head. The bottom end of the lifting rod is connected to a driving mechanism. The liquid inlet of the electromagnetic valve is connected to an external peristaltic pump through a hose. The peristaltic pump is connected to a container filled with medicine through a pipeline. The axis of the filling head is collinear with the axis of one of the material clamping notches, and the filling head can extend into the dropping bottle, so that the liquid can be filled into the dropping bottle. A fixed ring is fixed on the lifting rod. A lifting ring is connected below the fixed ring through a spring. The lifting ring is sleeved on the outer ring of the lifting rod and can slide up and down. A lower electrode is arranged below the lifting ring. A contact ring is arranged on the lifting sleeve. An upper electrode is arranged on the contact ring. The lower electrode is connected to the solenoid valve through a circuit. The upper electrode is connected to an external power supply. When the lifting rod moves downward, the lower electrode on the lifting ring can contact the upper electrode, thereby turning on the power supply of the solenoid valve and enabling the liquid in the filling head to flow out.

[0009] Preferably, the screwing mechanism includes a guide sleeve fixed on the frame. A lifting column is slidably inserted up and down in the guide sleeve. The bottom end of the lifting column is connected to a driving mechanism. A fixing frame is installed above the lifting column. A rotating structure and a screwing sleeve are installed on the fixing frame. A bidirectional screw sleeve for driving the rotating structure is fixed above the frame. The screwing sleeve is directly above one of the material clamping notches. An offset cylinder for driving the clamping structure is installed on the lifting column.

[0010] Preferably, the rotating structure includes a connecting sleeve rotatably installed on the fixing frame through a bearing. The top end of the connecting sleeve is fixed with a rotating rod. The rotating rod is connected to the screwing sleeve through a toothed belt and a toothed belt pulley. A plurality of limiting grooves are formed in the inner ring of the connecting sleeve in an annular array. A pressing rod is rotatably installed in the inner ring of the connecting sleeve through a bearing. The outer surface of the upper end of the pressing rod placed in the inner ring of the connecting sleeve is provided with a plurality of annularly distributed moving cavities. A driving rod is slidably installed in the moving cavity. A resisting spring is arranged in the moving cavity. Two ends of the resisting spring are respectively abutted against the driving rod and the inner wall of the moving cavity. A bidirectional screw sleeve is vertically fixed above the frame. A bidirectional screw rod is in threaded connection with the inner thread of the bidirectional screw sleeve. A plugging hole is formed at the top end of the bidirectional screw rod. A pressing slide hole is formed through the outer surface of the bidirectional screw rod. The lower end of the pressing rod is slidably inserted into the plugging hole. A slider is arranged below the outer surface of the pressing rod. The slider is slidably placed in the pressing slide hole. One end of the limiting groove and the inner ring of the connecting sleeve are provided with a stepped surface of a vertical structure. The other end of the limiting groove and the inner ring of the connecting sleeve are connected through an arc-shaped inclined surface.

[0011] Preferably, an offset block is arranged on the offset cylinder close to the offset plate. A part of the side of the offset block away from the offset cylinder is cut off to form a pushing inclined surface. A part of the side of the offset plate close to the offset cylinder is cut off to form an offset inclined surface. The slope of the offset inclined surface is the same as the slope of the pushing inclined surface. The lower half of the offset plate is vertically arranged with the upper part of the frame. When the pushing inclined surface contacts the lower half of the offset plate, the abutting plate will not move at this time.

[0012] Preferably, the driving mechanism includes a mounting plate fixed below the frame. Two cylinders are mounted on the mounting plate. A lifting plate is mounted on the push rod of the cylinder. A circular opening is formed in the lifting plate. The lifting plate is sleeved on the intermittent rotating sleeve through the circular opening. A plurality of deflection structures distributed in a ring shape are arranged on the lifting plate. The deflection structures are slidably connected with the intermittent rotating sleeve. The bottom ends of the lifting column and the lifting rod are fixed to the lifting plate.

[0013] Preferably, the deflection structure includes a fixed seat fixed on the lifting plate. A deflection rod is slidably inserted into the fixed seat. A pressure plate is fixed on the inner side of the deflection rod. A pressure spring is sleeved on the deflection rod. The two ends of the pressure spring are respectively abutted against the pressure plate and the fixed seat. Deflection grooves are formed on the outer ring of the intermittent rotating sleeve. The inner end of the deflection rod slides into the deflection grooves. The deflection grooves include a plurality of deflection sliding grooves distributed in a ring shape. Every two adjacent deflection sliding grooves are communicated through a vertical sliding groove. The upper end of the vertical sliding groove is connected with the upper end of the deflection sliding groove, and the upper end of the vertical sliding groove is designed with a deeper part to form a commutation groove. The lower end of the deflection sliding groove is communicated with the lower part of the vertical sliding groove. The lower part of the vertical sliding groove extends and is located below the deflection sliding groove. The depth of the deflection sliding groove gradually decreases from top to bottom, and the depth of the top end of the deflection sliding groove is the same as the depth of the commutation groove. The depth of the vertical sliding groove is greater than the depth of the lowest part of the deflection sliding groove. The number of the deflection sliding grooves and the vertical sliding grooves is the same as the number of the material clamping notches and the deflection structures.

[0014] The beneficial effects of the present invention are as follows: 1. By arranging a feeding mechanism on the frame, and a filling mechanism, an oscillator and a screwing structure are arranged on the feeding mechanism. Among them, the filling mechanism, the screwing structure and the feeding mechanism are all connected with the driving mechanism. After the feeding mechanism deflects the dropper bottle above it in place, the filling mechanism and the rotating mechanism can move downwards to perform filling and screwing operations, so that the dropper bottle and the bottle cap can be accurately located directly below the filling mechanism and the screwing mechanism, improving the filling and screwing accuracy and avoiding filling and screwing errors caused by the out-of-sync of the filling mechanism, the screwing mechanism and the feeding mechanism. 2. By arranging a clamping structure at the screwing position of the feeding mechanism, it can position the dropper bottle to avoid its shaking during screwing. And with the cooperation of the arranged driving mechanism and the screwing mechanism, when the dropper bottle is at the specified position and the screwing mechanism makes the clamping structure clamp and position the dropper bottle, the screwing mechanism can perform screwing, so that the bottle cap will not rotate during screwing, improving the firmness of the bottle cap screwing. Description of the Drawings

[0015] Figure 1 It is a front view sectional schematic diagram of a filling device for veterinary drops production proposed by the present invention; Figure 2 It is a rear view schematic diagram of the figure; Figure 3 It is a top view schematic diagram of the figure; Figure 4 It is a structural schematic diagram of the filling mechanism, the feeding mechanism, the screwing mechanism and the driving mechanism in the figure; Figure 5 It is Figure 4 a structural schematic diagram of the feeding mechanism in Figure 6 It is Figure 4 a structural schematic diagram of the clamping structure and the offset cylinder in Figure 7 It is Figure 4 a structural schematic diagram of the filling mechanism in Figure 8 It is Figure 4 a structural schematic diagram of the screwing mechanism in Figure 9 It is Figure 8 a cross-sectional schematic diagram of the rotating structure in Figure 10 It is Figure 4 a structural schematic diagram of the driving mechanism and the intermittent rotating sleeve in

[0016] Reference numerals in the figure: 1, frame; 2, feeding conveyor belt; 3, discharging conveyor belt; 4, feeding mechanism; 41, material blocking cover; 411, support ring; 412, side blocking ring; 42, rotating material tray; 421, turntable; 422, material clamping notch; 43, intermittent rotating sleeve; 431, vertical sliding groove; 432, deflection sliding groove; 433, reversing groove; 44, clamping structure; 441, side frame; 442, abutting rod; 443, abutting plate; 444, abutting spring; 445, offset plate; 446, offset inclined surface; 45, rotating shaft; 5, filling mechanism; 51, lifting rod; 511, lifting sleeve; 52, lifting frame; 53, filling head; 54, solenoid valve; 55, contact ring; 551, lower electrode; 56, lifting ring; 561, upper electrode; 6, oscillator; 61, oscillation track; 7, screwing mechanism; 71, lifting column; 711, guiding sleeve; 72, fixed frame; 73, screwing sleeve; 74, rotating structure; 741, rotating rod; 742, connecting sleeve; 743, pressing rod; 744, limiting groove; 745, driving rod; 746, resisting spring; 75, offset cylinder; 751, offset block; 752, pushing inclined surface; 76, bidirectional screw sleeve; 761, bidirectional screw rod; 762, pressing sliding hole; 8, driving mechanism; 81, cylinder; 82, lifting plate; 83, deflection structure; 831, fixed seat; 832, deflection rod; 833, pressure spring; 834, pressure plate. Specific embodiments

[0017] 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 only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Referring to Figures 1 - 10 , a filling device for veterinary drops production, including a frame 1, a feeding mechanism 4 is installed above the frame 1, a feeding conveyor belt 2 is installed on the left side of the feeding mechanism 4, a discharging conveyor belt 3 is installed on the front side of the feeding mechanism 4, a plurality of drops bottles are placed on the feeding conveyor belt 2, a filling mechanism 5 for filling is installed in a lifting manner at the left rear of the feeding mechanism 4, an oscillator 6 for bottle cap feeding is installed on the upper right side of the frame 1, an oscillation track 61 is provided at the outlet of the oscillator 6, the other end of the oscillation track 61 is above the feeding mechanism 4, a screwing mechanism 7 for screwing the bottle cap is installed in a lifting manner on the right side of the feeding mechanism 4, a driving mechanism 8 for lifting the filling mechanism 5 and the screwing mechanism 7 is installed below the frame 1, and the driving mechanism 8 is also connected to the feeding mechanism 4.

[0019] Referring to Figure 4 , Figure 5 , the feeding mechanism 4 includes a material blocking cover 41 fixed above the frame 1 through a bracket, a rotating material disk 42 is rotatably installed inside the inner circle of the material blocking cover 41, a rotating shaft 45 is fixed at the lower end of the rotating material disk 42, the rotating shaft 45 is rotatably connected to the frame 1 through a bearing, and the lower end of the rotating shaft 45 passes through the frame 1 and is located below it. An intermittent rotating sleeve 43 is installed at the lower end of the rotating shaft 45, the intermittent rotating sleeve 43 is connected to the driving mechanism 8, and a clamping structure 44 for fixing the drops bottle is also installed on the side of the material blocking cover 41.

[0020] The material blocking cover 41 includes a support ring 411 fixed above the frame 1 through a bracket, a side blocking ring 412 is suspended above the support ring 411 through a pillar, the inner diameter of the side blocking ring 412 is larger than the inner diameter of the support ring 411, and a part of both the support ring 411 and the side blocking ring 412 is cut off to form an opening, which is used for the drops bottle to enter and flow out of the feeding mechanism 4. The rotating material disk 42 includes two turntables 421 fixed on the rotating shaft, a plurality of uniformly distributed material clamping notches 422 are formed at the edges of the turntables 421, and the material clamping notches 422 on the upper and lower turntables 421 correspond to each other one by one. The outlet of the oscillation track 61 is directly above one of the material clamping notches 422. When the drops bottle passes through this position, the bottle cap in the oscillation track 61 can be pressed on the bottle mouth of the drops bottle. The size of the card material notch 422 is the same as the outer diameter of the dropping bottle, and the outer diameter of the turntable 421 is the same as the inner diameter of the side retaining ring 412. The outer diameter of the turntable 421 is smaller than the outer diameter of the support ring 411, and the outer diameter of the turntable 421 is also larger than the inner diameter of the support ring 411. The dropping bottle can be inserted into the card material notch 422 and thus rotate together with the rotating material tray 42. The lower end of the dropping bottle can be located above the support ring 411 for supporting the dropping bottle so that the dropping bottle can move along above the support ring 411.

[0021] Refer to Figure 5 、 Figure 6 , the clamping structure 44 includes a side frame 441 fixed to the outer surface of the outer ring of the side retaining ring 412 by screws. The side frame 412 is located below the screwing mechanism 7 and is directly opposite to the card material notch 422 below the screwing mechanism 7. Two round holes are provided on the side frame 441. The round holes are located between the side retaining ring 412 and the support ring 411. A contact rod 442 is slidably inserted into the round holes. A contact plate 443 is fixed between the left ends of the two contact rods 442. An offset plate 445 is fixed to the right end of the contact rod 442. A contact spring 444 is sleeved on the contact rod 442. The two ends of the contact spring 444 are respectively in contact with the offset plate 445 and the side frame 441. The contact plate 443 is located between the side retaining ring 412 and the support ring 411. The upper surface of the contact plate 443 is in sliding contact with the lower surface of the side retaining ring 412. And when the contact plate 443 is not extruded inward by an external force, there is a certain distance between the inner side surface of the contact plate 443 facing inward and the inner side wall of the side retaining ring 412. A rubber pad is provided on the inner side surface of the contact plate 443 facing inward. It has a certain elasticity and can avoid damaging the dropping bottle when contacting it. When the offset plate 445 is extruded by an external force, it can move leftward, and then the contact plate 443 moves leftward together. The inner wall of the contact plate 443 moving leftward can contact the outer wall of the dropping bottle, so as to clamp it between the card material notch 422 and the contact plate 443, thereby fixing it and increasing the resistance, so that it will not rotate together when screwing the bottle cap, improving the firmness of the bottle cap knob.

[0022] Refer to Figure 2 、 Figure 4 And Figure 7 , the filling mechanism 5 includes a lifting sleeve 511 fixed to the frame 1. A lifting rod 51 is slidably inserted up and down in the lifting sleeve 511. A lifting frame 52 is installed above the lifting rod 51. A filling head 53 is installed on the lifting frame 52. An electromagnetic valve 54 is installed at the top of the filling head 53. The bottom end of the lifting rod 51 is connected to the driving mechanism 8. The liquid inlet of the electromagnetic valve 54 is connected to an external peristaltic pump through a hose. The peristaltic pump is connected to a container filled with medicine through a pipeline. The axis of the filling head 53 is collinear with the axis of one of the card material notches 422. The filling head 53 can extend into the dropping bottle, so that the liquid can be filled into the dropping bottle; A fixing ring is fixed on the lifting rod 51. A lifting ring 56 is connected below the fixing ring through a spring. The lifting ring 56 is sleeved on the outer circle of the lifting rod 51 and can slide up and down. A lower electrode 561 is arranged below the lifting ring 56. A contact ring 55 is arranged on the lifting sleeve 511. An upper electrode 551 is arranged on the contact ring 55. The lower electrode 561 is connected to the solenoid valve 54 through a circuit. The upper electrode 551 is connected to an external power supply. When the lifting rod 51 moves downward, the lower electrode 561 on the lifting ring 56 can contact the upper electrode 551, so as to connect the power supply of the solenoid valve 54 and enable the liquid in the filling head 53 to flow out.

[0023] Refer to Figure 2 、 Figure 4 , the screwing mechanism 7 includes a guide sleeve 711 fixed on the frame 1. A lifting column 71 is inserted into the guide sleeve 711 and can slide up and down. The bottom end of the lifting column 71 is connected to the driving mechanism 8. A fixing frame 72 is installed above the lifting column 71. A rotating structure 74 and a screwing sleeve 73 are installed on the fixing frame 72. A bidirectional screw sleeve 76 for driving the rotating structure 74 is fixed above the frame 1. The screwing sleeve 73 is directly above one of the material clamping notches 422. An offset cylinder 75 for driving the clamping structure 44 is installed on the lifting column 71. The lifting column 71 can move up and down under the action of the driving mechanism 8, so that the screwing sleeve 73 is inserted into the bottle cap. The rotating structure 74 can make the screwing sleeve 73 rotate through a belt, and then the bottle cap is screwed onto the dropping bottle.

[0024] Refer to Figure 8 、 Figure 9 , the rotating structure 74 includes a connecting sleeve 742 rotatably installed on the fixing frame 72 through a bearing. The top end of the connecting sleeve 742 is fixed with a rotating rod 741. The rotating rod 741 is connected to the screwing sleeve 73 through a toothed belt and a toothed belt pulley. A plurality of limiting grooves 744 distributed in an annular array are formed in the inner circle of the connecting sleeve 742. A pressing rod 743 is rotatably installed in the inner circle of the connecting sleeve 742 through a bearing. The upper end of the pressing rod 743 is placed in the inner circle of the connecting sleeve 742. A plurality of annularly distributed moving cavities are formed on the outer surface of a part of the inner circle. A driving rod 745 is slidably installed in the moving cavity. A resisting spring 746 is arranged in the moving cavity. The two ends of the resisting spring 746 are respectively abutted against the driving rod 745 and the inner wall of the moving cavity. A bidirectional screw sleeve 76 is vertically fixed above the frame 1. A bidirectional screw rod 761 is threadedly connected in the bidirectional screw sleeve 76. A plugging hole is formed at the top end of the bidirectional screw rod 761. A pressing sliding hole 762 is formed through the outer surface of the bidirectional screw rod 761. The lower end of the pressing rod 743 is slidably inserted into the plugging hole, and a sliding block is arranged below the outer surface of the pressing rod 743. The sliding block is slidably placed in the pressing sliding hole 762; One end of the limiting groove 744 and the inner ring of the connecting sleeve 742 are provided with a step surface of a vertical structure, and the other end of the limiting groove 744 is connected to the inner ring of the connecting sleeve 742 through an arc-shaped inclined surface. The driving rod 745 always has a tendency to move outward under the action of the resistance spring 746, so that the outer side of the driving rod 745 contacts the inner ring of the connecting sleeve 742 or the limiting groove 744. The outer ring of the connecting sleeve 742 is also provided with a fixing sleeve, and the two are rotatably connected, and a bolt is threadedly connected to the fixing sleeve, and the bolt is used to adjust the resistance between the connecting sleeve 742 and the fixing sleeve; When the downward pressure rod 743 is downwardly moved so that the slider contacts the bottom end of the downward pressure sliding hole 762 of the double-directional screw rod 761, the downward pressure rod 743 will push the double-directional screw rod 761 to move downward together. Since the self-locking effect between the double-directional screw rod 761 and the double-directional screw sleeve 76 is extremely poor, the double-directional screw sleeve 76 is fixed and cannot rotate, and the double-directional screw rod 761 will rotate clockwise during the downward movement. The clockwise rotation of the double-directional screw rod 761 will drive the downward pressure rod 743 to rotate clockwise together. During the clockwise rotation, the driving The outer end of the rod 745 will contact the step surface of the limit groove 744 and push the connecting sleeve 742, the rotating rod 741 and the screw sleeve 73 to rotate together. When the bidirectional screw 761 moves upward and rotates counterclockwise, the friction resistance between the driving rod 745 and the arc surface is less than the resistance between the connecting sleeve 742 and the fixed sleeve. The driving rod 745 will slide along the arc surface and shrink into the moving cavity, so that the connecting sleeve 742 will not rotate, and therefore the screw sleeve 73 will not rotate accordingly.

[0025] Reference Figure 6 A displacement block 751 is provided on the side of the displacement cylinder 75 close to the displacement plate 445, and a push inclined surface 752 is formed by cutting away a portion of the displacement block 751 away from the displacement cylinder 75. A displacement inclined surface 446 is formed by cutting away a portion of the side of the displacement plate 445 close to the displacement cylinder 75. The slope of the displacement inclined surface 446 is consistent with the slope of the push inclined surface 752. The lower half of the displacement plate 445 is vertically arranged above the frame 1. When the displacement cylinder 75 moves downward together with the lifting column 71, the push inclined surface 752 can It contacts the offset slope 446 and pushes the offset plate 445 away from the offset cylinder 75, so that the abutment plate 443 is close to the dropper bottle, and the inner wall of the abutment plate 443 can contact the outer wall of the dropper bottle, so that it is clamped between the clamping notch 422 and the abutment plate 443, thereby fixing it and increasing the resistance so that it will not rotate with the bottle cap when the bottle cap is screwed, thereby improving the firmness of the bottle cap knob. When the push slope 752 contacts the lower half of the offset plate 445, the abutment plate 443 will not move at this time.

[0026] Reference Figure 4 , Figure 10, the driving mechanism 8 includes a mounting plate fixed below the frame 1. Two cylinders 81 are mounted on the mounting plate. A lifting plate 82 is mounted on the push rod of the cylinder 81. A circular opening is formed on the lifting plate 82. The lifting plate 82 is sleeved on the intermittent rotating sleeve 43 through the circular opening. A plurality of deflection structures 83 distributed in a ring shape are arranged on the lifting plate 82. The deflection structures 83 are slidably connected to the intermittent rotating sleeve 43. The bottom ends of the lifting columns 71 and the lifting rods 51 are fixed to the lifting plate 82.

[0027] The deflection structure 83 includes a fixed seat 831 fixed on the lifting plate 82. A deflection rod 832 is slidably inserted into the fixed seat 831. A pressure plate 834 is fixed on the inner side of the deflection rod 832. A pressure spring 833 is sleeved on the deflection rod 832. The two ends of the pressure spring 833 are respectively abutted against the pressure plate 834 and the fixed seat 831. Deflection grooves are formed on the outer ring of the intermittent rotating sleeve 43. The inner end of the deflection rod 832 slides into the deflection grooves. The deflection grooves include a plurality of deflection sliding grooves 432 distributed in a ring shape. Every two adjacent deflection sliding grooves 432 are communicated through a vertical sliding groove 431. The upper end of the vertical sliding groove 431 is connected to the upper end of the deflection sliding groove 432. And a commutation groove 433 is formed by deepening the design of the upper end of the vertical sliding groove 431. The lower end of the deflection sliding groove 432 is communicated with the lower part of the vertical sliding groove 431. The lower part of the vertical sliding groove 431 extends and is located below the deflection sliding groove 432. The depth of the deflection sliding groove 432 gradually decreases from top to bottom. And the depth of the top end of the deflection sliding groove 432 is the same as the depth of the commutation groove 433. The depth of the vertical sliding groove 431 is greater than the depth of the bottommost part of the deflection sliding groove 432. The number of the deflection sliding grooves 432 and the vertical sliding grooves 431 is the same as the number of the material clamping notches 422 and the deflection structures 83. And the top view projection of the deflection sliding groove 432 is an arc structure. The arc length of the arc structure is 1 / n of the circumference of the intermittent rotating sleeve 43, where n is the number of the material clamping notches 422. When the deflection rod 832 moves a complete path in the deflection sliding groove 432, the entire intermittent rotating sleeve 43 will rotate 1 / n turns, that is, the material clamping notch 422 rotates a unit distance. When the deflection rod 832 is in the vertical sliding groove 431, the entire intermittent rotating sleeve 43 will not rotate. And when the deflection rod 832 is at the uppermost position, it will be in the commutation groove 433. When the deflection rod 832 moves downward again, the deflection rod 832 will be in the deflection sliding groove 432 and cause the intermittent rotating sleeve 43 to rotate again.

[0028] Working principle: During actual use, the dropping bottles are on the feeding conveyor belt 2 and move to the right under the action of the feeding conveyor belt 2. The dropping bottles at the rightmost end will contact the outer ring surface of the turntable 421 and have a tendency to move to the right. Some of the dropping bottles are in the material clamping notches 422 of the turntable 421 ( Figure 1Taking the example shown, then the push rod of the air cylinder 81 moves downward. When the push rod of the air cylinder 81 moves downward, it will cause the lifting plate 82 and the deflection structure 83 to move downward together; When the push rod of the air cylinder 81 is at its maximum stroke, that is, when the filling head 53 and the screwing sleeve 73 are at the highest position, at this time, the deflection rod 832 is in the commutation groove 433. Since the depth of the top end of the deflection chute 432 is the same as the depth of the commutation groove 433, and the depth of the vertical chute 431 is less than the depth of the top end of the deflection chute 432, when the lifting plate 82 drives the deflection rod 832 to move downward under the action of the air cylinder 81, the deflection rod 832 will move along the deflection chute 432. When the deflection rod 832 moves inside the deflection chute 432, it will cause the intermittent rotating sleeve 43 to rotate 1 / n turns (n is the number of material clamping notches 422). At this time, a new dropper bottle will be placed in the vacant material clamping notch 422, and this dropper bottle will be directly below the filling head 53. The filled dropper bottle will be below the discharge port of the oscillation track 61, and the dropper bottle with the cap will move to directly below the screwing sleeve 73; After the material clamping notch 422 deflects the dropper bottle by a unit distance, at this time, the deflection rod 832 is in the vertical chute 431, and there is still a section of space below the vertical chute 431. At this time, the push rod of the air cylinder 81 can still continue to move downward. At this time, the lifting plate 82 causes the lifting column 71 and the lifting rod 51 to continue to move downward, and the pushing inclined surface 752 can contact the offset inclined surface 446 and push the offset plate 445 away from the offset cylinder 75, so that the abutting plate 443 approaches the dropper bottle, and the inner wall of the abutting plate 443 can contact the outer wall of the dropper bottle, thereby clamping the dropper bottle between the material clamping notch 422 and the abutting plate 443, so as to fix it, increase the resistance, so that it will not rotate when screwing the cap, and improve the firmness of the cap screwing; When the pushing inclined surface 752 contacts the lower half of the offset plate 445, at this time, the abutting plate 443 will not move, and the slider on the pressing rod 743 contacts the bottom end of the downward pressing sliding hole 762 of the bidirectional screw 761. Due to the poor self-locking effect between the bidirectional screw 761 and the bidirectional nut 76, the bidirectional screw 761 will rotate clockwise during the downward movement, and the outer end of the driving rod 745 will contact the step surface of the limiting groove 744 and push the connecting sleeve 742 and the rotating rod 741 to rotate. The screwing sleeve 73 will rotate together with the rotating rod 741 under the action of the toothed belt and the toothed belt pulley, so that the cap is screwed onto the dropper bottle; At this time, the filling head 53 extends into the dropper bottle. The lower electrode 561 on the lifting ring 56 contacts the upper electrode 551, thereby turning on the power supply of the solenoid valve 54, enabling the liquid in the filling head 53 to flow out. Moreover, the lifting ring 56 can slide up and down under the action of the spring, and it can ensure the contact between the lower electrode 561 and the upper electrode 551. When the power supply of the solenoid valve 54 is turned on, the peristaltic pump can make the medicament be filled into the dropper bottle through the solenoid valve 54 and the filling head 53.

[0029] When the push rod of the air cylinder 81 extends and makes the lifting plate 82 move upward, at this time, the lower pressing rod 743 will move upward accordingly. When the slider on the lower pressing rod 743 contacts the top of the lower pressing slide hole 762, the bidirectional screw rod 761 will move upward and rotate counterclockwise. The frictional resistance between the driving rod 745 and the arc surface is less than the resistance between the connecting sleeve 742 and the fixed sleeve. The driving rod 745 will slide along the arc surface and contract into the moving cavity, so that the connecting sleeve 742 will not rotate, and thus the screwing sleeve 73 will not rotate accordingly. When the push rod of the air cylinder 81 extends to a certain extent, at this time, the upper electrode 551 is separated from the lower electrode 561. The filling of the dropper bottle is completed and the filling stops. The pushing inclined surface 752 is separated from the offset inclined surface 446. The abutting plate 443 moves away from the dropper bottle under the action of the abutting spring 444, thereby releasing the fixation of the dropper bottle. And because the depth of the vertical sliding groove 431 is greater than the depth of the lowermost part of the deflection sliding groove 432, then when the deflection rod 832 moves upward, it will move along the vertical sliding groove 431 and move into the commutation groove 433. When moving downward again later, the deflection rod 832 will move along the deflection sliding groove 432 again, and make the rotating tray 42 rotate 1 / n circles. All the dropper bottles will move together accordingly. The screwed dropper bottles will move onto the discharging conveyor belt 3, and the vacant bottle clamping notches 422 will also be replenished with dropper bottles. In this way, by repeating this cycle, the operations of feeding, filling, capping, screwing, and discharging can be continuously carried out.

[0030] By arranging the feeding mechanism 4 on the frame 1, and arranging the filling mechanism 5, the oscillator 6 and the screwing mechanism 7 on the feeding mechanism 4, wherein the filling mechanism 5, the screwing mechanism 7 and the feeding mechanism 4 are all connected to the driving mechanism 8. After the feeding mechanism 4 deflects the dropper bottles above it into place, the filling mechanism 5 and the screwing mechanism 7 can carry out the filling and screwing operations, so that the dropper bottles and the bottle caps can be accurately located directly below the filling mechanism 5 and the screwing mechanism 7, improving the filling and screwing accuracy and avoiding filling and screwing errors caused by the asynchrony between the filling mechanism 5, the screwing mechanism 7 and the feeding mechanism 4. By arranging a clamping structure 44 at the screwing position of the feeding mechanism 4, it can position the dropping bottle, avoid its shaking during screwing, and cooperate with the arranged driving mechanism 8 and screwing mechanism 7. After the dropping bottle is in the specified position and the screwing mechanism 7 makes the clamping structure 44 clamp and position the dropping bottle, the screwing mechanism 7 can only perform screwing, so that it will not rotate along with the screwing of the bottle cap, improving the firmness of the bottle cap screwing.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0033] The above is only a preferred specific embodiment 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, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A filling device for producing veterinary drops, characterized in that, it includes a frame (1), a feeding mechanism (4) is installed above the frame (1), a feeding conveyor belt (2) is installed on the left side of the feeding mechanism (4), a discharging conveyor belt (3) is installed on the front side of the feeding mechanism (4), a plurality of drop bottles are placed on the feeding conveyor belt (2), a filling mechanism (5) for filling is installed in a lifting manner at the left rear of the feeding mechanism (4), an oscillator (6) for feeding bottle caps is installed on the upper right side of the frame (1), an oscillation track (61) is arranged at the outlet of the oscillator (6), the other end of the oscillation track (61) is above the feeding mechanism (4), a screwing mechanism (7) for screwing the bottle cap is installed in a lifting manner on the right side of the feeding mechanism (4), a driving mechanism (8) for lifting the filling mechanism (5) and the screwing mechanism (7) is installed below the frame (1), and the driving mechanism (8) is also connected to the feeding mechanism (4).

2. The filling device for producing veterinary drops according to claim 1, characterized in that, the feeding mechanism (4) includes a material blocking cover (41) fixed above the frame (1) through a bracket, a rotating material tray (42) is rotatably installed inside the material blocking cover (41), a rotating shaft (45) is fixed at the lower end of the rotating material tray (42), the rotating shaft (45) is rotatably connected to the frame (1) through a bearing, and the lower end of the rotating shaft (45) passes through the frame (1) and is located below it, an intermittent rotating sleeve (43) is installed at the lower end of the rotating shaft (45), the intermittent rotating sleeve (43) is connected to the driving mechanism (8), and a clamping structure (44) for fixing the drop bottle is also installed on the side of the material blocking cover (41).

3. The filling device for producing veterinary drops according to claim 2, characterized in that, the material blocking cover (41) includes a support ring (411) fixed above the frame (1) through a bracket, a side blocking ring (412) is suspended above the support ring (411) through a pillar, and the inner diameter of the side blocking ring (412) is larger than the inner diameter of the support ring (411); the rotating material tray (42) includes two turntables (421) fixed on a rotating shaft, a plurality of evenly distributed material clamping notches (422) are formed at the edges of the turntables (421), and the material clamping notches (422) on the upper and lower turntables (421) correspond to each other one by one.

4. The filling device for producing veterinary drops according to claim 2, characterized in that, the clamping structure (44) includes a side frame (441) fixed on the outer surface of the outer ring of the side blocking ring (412) by screws, two circular holes are formed in the side frame (441), a butting rod (442) is slidably inserted into the circular holes, a butting plate (443) is fixed between the left ends of the two butting rods (442), a deflection plate (445) is fixed at the right end of the butting rod (442), a butting spring (444) is sleeved on the butting rod (442), and the two ends of the butting spring (444) are respectively abutted against the deflection plate (445) and the side frame (441).

5. The filling device for producing veterinary drops according to claim 2, characterized in that, the filling mechanism (5) includes a lifting sleeve (511) fixed on the frame (1), a lifting rod (51) is slidably inserted up and down in the lifting sleeve (511), a lifting frame (52) is installed above the lifting rod (51), a filling head (53) is installed on the lifting frame (52), a solenoid valve (54) is installed at the top of the filling head (53), and the bottom end of the lifting rod (51) is connected to the driving mechanism (8); a fixed ring is fixed on the lifting rod (51), a lifting ring (56) is connected below the fixed ring through a spring, the lifting ring (56) is slidably sleeved on the outer circle of the lifting rod (51), a lower electrode (561) is arranged below the lifting ring (56), a contact ring (55) is arranged on the lifting sleeve (511), and an upper electrode (551) is arranged on the contact ring (55).

6. The filling device for producing veterinary drops according to claim 5, characterized in that, the screwing mechanism (7) includes a guide sleeve (711) fixed on the frame (1), a lifting column (71) is slidably inserted up and down in the guide sleeve (711), the bottom end of the lifting column (71) is connected to the driving mechanism (8), a fixing frame (72) is installed above the lifting column (71), a rotating structure (74) and a screwing sleeve (73) are installed on the fixing frame (72), a bidirectional screw sleeve (76) for driving the rotating structure (74) is fixed above the frame (1), the screwing sleeve (73) is directly above one of the material clamping notches (422), and an offset cylinder (75) for driving the clamping structure (44) is installed on the lifting column (71).

7. The filling device for producing veterinary drops according to claim 6, characterized in that, The rotating structure (74) includes a connecting sleeve (742) rotatably mounted on a fixed frame (72) through a bearing. A rotating rod (741) is fixed to the top end of the connecting sleeve (742). The rotating rod (741) is connected to a screwing sleeve (73) through a toothed belt and a toothed pulley. A plurality of limiting grooves (744) are formed in an annular array on the inner ring of the connecting sleeve (742). A pressing rod (743) is rotatably mounted on the inner ring of the connecting sleeve (742) through a bearing. A plurality of annularly distributed moving cavities are formed on the outer surface of the upper end portion of the pressing rod (743) placed inside the inner ring of the connecting sleeve (742). A driving rod (745) is slidably mounted in the moving cavity. A resisting spring (746) is arranged in the moving cavity. Two ends of the resisting spring (746) are respectively abutted against the driving rod (745) and the inner wall of the moving cavity. A bidirectional screw sleeve (76) is vertically fixed above the frame (1). A bidirectional screw rod (761) is threadedly connected to the bidirectional screw sleeve (76). A plugging hole is formed at the top end of the bidirectional screw rod (761), and a pressing sliding hole (762) is formed through the outer surface of the bidirectional screw rod (761). The lower end of the pressing rod (743) is slidably plugged in the plugging hole, and a slider is arranged below the outer surface of the pressing rod (743). The slider is slidably placed in the pressing sliding hole (762).

8. A filling device for veterinary drops production according to claim 6, wherein, An offset block (751) is arranged on one side of the offset cylinder (75) close to the offset plate (445). A pushing inclined surface (752) is formed by removing a part of the side of the offset block (751) away from the offset cylinder (75). An offset inclined surface (446) is formed by removing a part of the side of the offset plate (445) close to the offset cylinder (75). The slope of the offset inclined surface (446) is the same as that of the pushing inclined surface (752).

9. A filling device for veterinary drops production according to claim 7, wherein, The driving mechanism (8) includes a mounting plate fixed below the frame (1). Two cylinders (81) are mounted on the mounting plate. A lifting plate (82) is mounted on the push rod of the cylinder (81). A circular opening is formed on the lifting plate (82). The lifting plate (82) is sleeved on the intermittent rotating sleeve (43) through the circular opening. A plurality of deflection structures (83) are arranged on the lifting plate (82) in an annular distribution. The deflection structures (83) are slidably connected to the intermittent rotating sleeve (43). The bottom ends of the lifting column (71) and the lifting rod (51) are fixed to the lifting plate (82).

10. A filling device for veterinary drops production according to claim 8, wherein, The deflection structure (83) includes a fixed seat (831) fixed on the lifting plate (82). A deflection rod (832) is slidably inserted into the fixed seat (831). A pressure plate (834) is fixed on the inner side of the deflection rod (832). A pressure spring (833) is sleeved on the deflection rod (832). The two ends of the pressure spring (833) are respectively abutted against the pressure plate (834) and the fixed seat (831). A deflection groove is formed in the outer ring of the intermittent rotating sleeve (43). The inner end of the deflection rod (832) is slidably placed in the deflection groove. The deflection groove includes a plurality of deflection sliding grooves (432) distributed in a ring shape. Every two adjacent deflection sliding grooves (432) are communicated through a vertical sliding groove (431). The upper end of the vertical sliding groove (431) is connected to the upper end of the deflection sliding groove (432). And a reversing groove (433) is formed by deepening the design of the upper end of the vertical sliding groove (431). The lower end of the deflection sliding groove (432) is communicated with the lower part of the vertical sliding groove (431). The lower part of the vertical sliding groove (431) extends and is located below the deflection sliding groove (432). The depth of the deflection sliding groove (432) gradually decreases from top to bottom. And the depth of the top end of the deflection sliding groove (432) is the same as the depth of the reversing groove (433). The depth of the vertical sliding groove (431) is greater than the depth of the lowermost part of the deflection sliding groove (432).

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