Liquid filling machine

Abstract

The utility model relates to the technical field of liquid filling equipment, in particular to a liquid filling machine which is suitable for liquid packaging scenes in the industries of food, liquid, medicine, daily chemicals and the like, and the filling amount of the liquid packaging scenes needs to be accurately controlled. The filling machine comprises a rotating table and a hydraulic cylinder, a liquid inlet assembly is arranged on the inner side of the rotating table, the hydraulic cylinder is arranged at the end of the rotating table, at least one set of filling pipes are arranged below the hydraulic cylinder, and a top layer hoisting assembly, a middle layer hoisting assembly and a bottom layer hoisting assembly which are connected with the filling pipes are arranged below the filling pipes; the device further comprises a bottle body to be filled with liquid, the bottle body keeps rotating synchronously with the filling pipe under the combined action of the top layer hoisting assembly, the middle layer hoisting assembly and the bottom layer hoisting assembly, and the bottom of the bottle body is in a suspended state. By means of the servo drive technology, high-precision, high-efficiency and low-energy-consumption liquid filling is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid filling equipment technical field especially relates to a kind of liquid filling machine, applicable to food, liquid, medicine, daily chemical industry etc. BACKGROUND

[0002] Rotary filling machine can also be called rotary filling machine, generally adopts continuous filling form, i.e.

[0003] China patent announcement No.

[0004] And, China patent publication No.

[0005] Therefore, by the bottle and filling head synchronous movement mode can realize continuous filling, without stagnation, thereby effectively improving the filling efficiency.

[0006] But this kind of filling machine, transport equipment and filling head adopt double-system drive, then the synchronism requirement of transport equipment and filling head rotation is very high, so the cost required by current double-system drive is very high, and transport equipment has an disadvantage, that is: need to place bottle on transport equipment, to form support at bottle bottom and transport, this bottom support transport mode, unavoidable is that the vibration generated by transport equipment work will influence bottle, and easily appear the phenomenon of liquid leakage. INVENTION CONTENTS

[0007] The utility model provides a kind of liquid filling machine, to form the suspension of the bottle to be filled below filling part, and form the integrated support of each part of bottle, to solve the problem proposed in above background art, i.e.

[0008] Place bottle on transport equipment, unavoidable is that the vibration generated by transport equipment work will influence bottle, cause bottle deviation and inclination, easily appear the phenomenon of liquid leakage in filling stage and transport stage.

[0009] To achieve the above object, the utility model provides a kind of liquid filling machine, including the rotary table of inside setting with liquid inlet component and the liquid cylinder of setting in rotary table end portion, the liquid cylinder below is provided with at least one group of filling pipe, it is characterized by further comprising:

[0010] The integrated bottle body lifting mechanism comprises, from top to bottom, a top layer lifting assembly, a middle layer lifting assembly and a bottom layer lifting assembly arranged coaxially;

[0011] The top layer lifting assembly comprises a valve mounting ring plate and a lifting rod one connected with the liquid cylinder, and the filling pipe is vertically arranged on the valve mounting ring plate.

[0012] The middle layer lifting assembly comprises a bottle neck supporting plate and a lifting rod two, and the bottle neck supporting plate is provided with a first edge notch matched with the bottle neck.

[0013] The bottom layer lifting assembly comprises a bottle protecting ring block and a lifting rod three, and the bottle protecting ring block is provided with a second edge notch matched with the bottle body.

[0014] The lifting rod one, the lifting rod two and the lifting rod three are arranged in a plurality of annular array structures, and the lifting rod two and the lifting rod three are coaxially arranged to form an integrated support frame, so that the bottle body arranged on the integrated bottle body lifting mechanism can be in a suspended state and synchronously rotated.

[0015] As a further improvement of the technical solution, the servo material falling mechanism is arranged at the bottom edge of the liquid cylinder, and the servo material falling mechanism comprises a plurality of material outlet assemblies and a filling assembly arranged annularly, the material outlet assembly comprises a gear pump and a material guiding inclined pipe connected with the gear pump, and the filling assembly comprises a filling valve and a filling pipe arranged on the valve mounting ring plate.

[0016] The gear pump is communicated with the liquid cylinder, and the material guiding inclined pipe connects the gear pump and the filling valve.

[0017] On this basis, the gear pump is a pump body driven by a servo motor.

[0018] As a further improvement of the technical solution, the bottle body input mechanism comprises an input disc, and the bottle body output mechanism comprises an output disc, and the edges of the input disc and the output disc are correspondingly provided with conveying notches, and the number ratio of the conveying notches of the input disc and the output disc to the edge notches of the bottle neck supporting plate and the bottle protecting ring block is 24:8.

[0019] The conveying notches are cap rotating positions, and the edge notches are filling positions.

[0020] In the above technical solution, the valve mounting ring plate, the bottle neck supporting plate and the bottle protecting ring block form a three-layer lifting mechanism, the double positioning of the bottle neck and the bottle body is realized through the clamping design of the edge notches, the conveying environment without bottom support is combined with the lifting baffle, the risk of bottle body dumping is further reduced, and therefore the influence of the conveying equipment on the bottle body is fundamentally avoided.

[0021] Compared with the prior art, the liquid filling machine has the following beneficial effects:

[0022] The bottle body is stably hoisted below the filling pipe through integrated hoisting, without the need of additional transportation equipment driving, the structure is simpler, maintenance is more convenient, and cost is lower; and after the bottle body is in the state of being hoisted in suspension at the bottom, the influence of bottle body deviation, inclination and vibration caused by supporting the bottle body and transportation at the bottom is avoided.

[0023] Moreover, the gear pump precisely controls the liquid flow through a servo motor, realizes precise filling by cooperating with a built-in high-precision flowmeter and a drip-proof nozzle, and also saves the lower weighing structure, thereby providing a prerequisite for hoisting.

[0024] In addition, the ratio of the number of filling positions to the number of cap screwing positions is 24:8, the design controls the size of the filling machine, realizes direct delivery after factory assembly, and thereby reduces transportation cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a sectional view of the overall structure of the utility model;

[0026] Figure 2 It is a structure distribution schematic view of the bottle body hoisting mechanism and the servo material falling mechanism in the utility model;

[0027] Figure 3 It is a structure distribution schematic view of the bottle body hoisting mechanism and the servo material falling mechanism in the utility model; Figure 2 It is an enlarged view of structure A in the utility model;

[0028] Figure 4 It is a structure distribution schematic view of the rotating table, the hydraulic cylinder and the lifting baffle in the utility model;

[0029] Figure 5 It is a structure distribution schematic view of the bottom hoisting assembly, the bottle body input mechanism, the bottle body output mechanism and the lifting baffle in the utility model.

[0030] In the figure: 1, rotating table; 11, rotating base table; 12, lifting assembly; 121, lifting base; 122, lifting shaft; 2, hydraulic cylinder; 3, top hoisting assembly; 31, valve mounting ring plate; 311, through groove; 32, hoisting rod one; 4, middle hoisting assembly; 41, bottle neck supporting plate; 42, hoisting rod two; 5, bottom hoisting assembly; 51, bottle protecting ring block; 52, hoisting rod three; 6, discharging assembly; 61, gear pump; 62, material guiding inclined pipe; 7, filling assembly; 71, filling valve; 72, filling pipe; 8, lifting baffle. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] Referring to Figure 1 and Figure 5 , a liquid filling machine comprises a rotating table 1, a bottle body hoisting mechanism, a bottle body input mechanism, a bottle body output mechanism and a servo material dropping mechanism, the inner side of the rotating table 1 is provided with a liquid inlet assembly for guiding liquid, and the end of the rotating table 1 is provided with a liquid cylinder 2 in communication with the liquid inlet assembly; as shown in Figure 2 , the servo material dropping mechanism comprises a material outlet assembly 6 and a filling assembly 7, the material outlet assembly 6 comprises a gear pump 61 and a material guide inclined pipe 62, and the filling assembly 7 comprises a filling valve 71 and a filling pipe 72;

[0033] The gear pump 61 is arranged below the liquid cylinder 2 and is in communication through a pipeline, the gear pump 61 is a pump body driven by a servo motor, so that when the filling liquid in the liquid cylinder 2 is guided out, accurate control can be formed, thereby improving the capacity accuracy of filling, and the material guide inclined pipe 62 is arranged below the gear pump 61 and is fixedly connected to one side of the filling valve 71.

[0034] The bottle body hoisting mechanism is arranged below the liquid cylinder 2 and surrounds the outer side of the rotating table 1, as shown in Figure 2 , the bottle body hoisting mechanism comprises a top layer hoisting assembly 3, a middle layer hoisting assembly 4 and a bottom layer hoisting assembly 5, the top layer hoisting assembly 3 comprises a valve mounting ring plate 31 and a hoisting rod one 32, the hoisting rod one 32 is arranged vertically at the lower end of the bottom wall of the liquid cylinder 2, and the valve mounting ring plate 31 is fixedly arranged at the bottom end of the hoisting rod one 32, the middle layer hoisting assembly 4 comprises a bottle neck supporting plate 41 and a hoisting rod two 42, the hoisting rod two 42 is arranged vertically at the bottom end of the valve mounting ring plate 31, and the bottle neck supporting plate 41 is fixedly arranged at the bottom end of the hoisting rod two 42, and the bottom layer hoisting assembly 5 comprises a bottle protection ring block 51 and a hoisting rod three 52, the hoisting rod three 52 is arranged vertically at the bottom end of the bottle neck supporting plate 41, and the bottle protection ring block 51 is fixedly arranged at the bottom end of the hoisting rod three 52.

[0035] The filling valve 71 is vertically arranged on the valve mounting ring plate 31, the filling pipe 72 passes through the through groove 311 on the plate body of the valve mounting ring plate 31, and the end of the filling pipe 72 is connected with the filling valve 71, and the bottom end is opposite to the edge notch of the bottle neck support plate 41, so that the bottle neck of the bottle to be filled is inserted into the edge notch of the bottle neck support plate 41, and the filling pipe 72 will be opposite to the bottle mouth of the bottle to be filled, at this time, the gear pump 61 controlled by the servo motor works, the quantitative liquid can be accurately controlled to fall, and the effect of accurate control of filling is achieved, wherein the filling pipe 72 is internally provided with a high-precision flow meter and a drip-proof nozzle.

[0036] Preferably, the liquid cylinder 2 is an annular cylinder, and the connection position of the liquid cylinder 2 and the gear pump 61 is close to the bottom edge of the liquid cylinder 2. The annular liquid cylinder 2 can use the centrifugal force during rotation to press the liquid to the pump port at the connection position of the gear pump 61, thereby improving the liquid delivery efficiency, especially for high-viscosity liquids, reducing the residue in the liquid cylinder 2, avoiding liquid stratification or precipitation, and enhancing the consistency of filling.

[0037] As one embodiment of the present embodiment, as shown in Figure 3 The edge notches for limiting the position of the bottle are respectively arranged on the bottle neck support plate 41 and the bottle protection ring block 51, the edge notch of the bottle neck support plate 41 corresponds to the neck of the bottle to be filled, so that the neck of the bottle to be filled can be clamped by the notch after being inserted into the edge notch of the bottle neck support plate 41, as shown in Figure 2 The edge notch of the bottle protection ring block 51 corresponds to the bottle body part of the bottle to be filled, so that the bottle body of the bottle to be filled can be clamped by the notch after being inserted into the edge notch of the bottle protection ring block 51.

[0038] In addition, as shown in Figure 2 The bottle hoisting mechanism further comprises a lifting baffle 8, which is fixedly arranged on the fixed bottom table of the rotating base table 11. The lifting baffle 8 is an annular baffle driven to lift by a cylinder. The annular baffle part of the lifting baffle 8 is wrapped outside the bottle neck support plate 41 and the bottle protection ring block 51, so that when the bottle to be filled is inserted into the edge notches of the bottle neck support plate 41 and the bottle protection ring block 51 and transported, the annular baffle can be clamped outside the bottle, avoiding the bottle from tilting or deviating, helping the bottle to be filled to be lifted and transported on the bottle neck support plate 41 and the bottle protection ring block 51, and the bottom of the bottle is not supported during the whole transportation process.

[0039] As shown in Figure 5As shown, the bottle input mechanism is connected to the input end of the bottle hoisting mechanism, the bottle output mechanism is connected to the output end of the bottle hoisting mechanism, the bottle input mechanism includes an input disc, the bottle output mechanism includes an output disc, and corresponding transport notches are formed at the edges of the input disc and the output disc. The bottle input mechanism, the bottle output mechanism and the rotating table 1 are driven to rotate by a servo synchronous belt, thereby completing the three processes of bottle input, transfer and output.

[0040] As preferred, the number of transport notches of the input disc and the output disc (the transport notches of the output disc are cap screwing positions) is eight, and the number of edge notches of the bottle neck support plate 41 and the bottle ring block 51 (which are filling positions) is twenty-four.

[0041] As shown, Figure 2 The hoisting rod two 42 and the hoisting rod three 52 are coaxial structures, so that the bottle neck support plate 41 and the bottle ring block 51 are integrated through the fixed connection of the hoisting rod two 42 and the hoisting rod three 52, and the bottle neck support plate 41 and the bottle ring block 51 are synchronized under the valve mounting ring plate 31, thereby enhancing the support stability of the bottle neck support plate 41 and the bottle ring block 51 to the bottle.

[0042] The plurality of hoisting rods one 32 are arranged in a ring around the liquid cylinder 2, and the plurality of discharge assemblies 6 are arranged in a ring around the liquid cylinder 2. The material guiding inclined pipe 62 includes a vertical pipe and an inclined pipe. The vertical pipe is fixedly connected to the gear pump 61, and the inclined pipe is fixedly connected to the bottom end of the vertical pipe and one side of the filling valve 71.

[0043] The valve mounting ring plate 31 is a circular ring plate. The valve mounting ring plate 31 is located directly below the liquid cylinder 2 and surrounds the outside of the rotating table 1. The valve mounting ring plate 31 has a through slot 311 around the plate body.

[0044] As shown, Figure 4 The rotating table 1 includes a rotating base table 11 and a lifting assembly 12. The lifting assembly 12 includes a lifting base 121 and a lifting shaft 122. The rotating base table 11 includes a fixed bottom table and a top table arranged above the bottom table and rotatable. The liquid cylinder 2 is arranged on the top table. The lifting base 121 is fixedly arranged on the top table of the rotating base table 11. The top end of the lifting shaft 122 is fixedly connected to the liquid cylinder 2. The bottom end of the lifting shaft 122 is screw-mounted on the inside of the lifting base 121. The connection is locked by a nut, so that the liquid cylinder 2 can be lifted on the rotating table 1.

[0045] Working principle: first through the liquid inlet assembly to the liquid cylinder 2 into the filling liquid, and then through the bottle input mechanism input disc to be filled with bottle input to the bottle hoisting mechanism, to be filled with bottle will be inserted horizontally on the bottle neck support plate 41 and bottle ring block 51, at this time the bottle neck of the bottle will be inserted into the edge notch of the bottle neck support plate 41, and the bottle body of the bottle will be inserted into the edge notch of the bottle ring block 51.

[0046] At this time, under the action of the rotating table 1, the hoisting rod 32 drives the valve mounting ring plate 31 to rotate, the filling assembly 7 on the valve mounting ring plate 31 rotates synchronously, and the gear pump 61 and the material guide inclined pipe 62 below the liquid cylinder 2 also rotate synchronously. During rotation, the gear pump 61 is started, the flow is controlled by the servo motor, the liquid in the liquid cylinder 2 enters the filling valve 71 through the gear pump 61 and the material guide inclined pipe 62, and finally the liquid falls into the bottle below through the filling pipe 72. As the liquid continuously enters the bottle, the bottle hoisting mechanism, the bottle in the hoisting state and the servo material falling mechanism continue to rotate, when the bottle to be filled rotates to the side close to the bottle output mechanism, the bottle output mechanism drives the filled bottle to be discharged.

[0047] Based on the above scheme, a servo control filling process is also proposed, comprising the following steps:

[0048] Initialization: support parameter setting (such as filling amount, speed, bottle type parameter) through HMI (Human Machine Interface), real-time monitoring and data storage, PLC controller integrates PID control algorithm, receives sensor signal and outputs servo control instruction, which is used to control the start and stop of the servo motor;

[0049] In addition, the HMI one-key switching parameter supports 50mL to 5L multiple specifications of bottle filling.

[0050] S1, first through the liquid inlet assembly to the liquid cylinder 2 into the filling liquid, and then through the bottle input mechanism input disc to be filled with bottle input to the bottle hoisting mechanism, to be filled with bottle will be inserted horizontally on the bottle neck support plate 41 and bottle ring block 51, at this time the bottle neck of the bottle will be inserted into the edge notch of the bottle neck support plate 41, and the bottle body of the bottle will be inserted into the edge notch of the bottle ring block 51;

[0051] S2, under the action of the rotating table 1, the bottle hoisting mechanism, the bottle in the hoisting state and the servo material falling mechanism rotate synchronously;

[0052] S3, start the gear pump 61, control the flow by the servo motor, let the liquid in the liquid cylinder 2 enter the filling assembly 7 through the gear pump 61 and the material guide inclined pipe 62;

[0053] S4, start the filling valve 71, let the liquid pass through the filling pipe 72 and finally fall into the bottle body below;

[0054] S5, with the bottle body lifting mechanism, the bottle body in the lifting state and the servo material falling mechanism continue to rotate, when the bottle body to be filled rotates to the side close to the bottle body output mechanism, the bottle body which completes the filling is guided out under the action of the bottle body output mechanism.

[0055] The basic principle, main characteristics and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A liquid filling machine, comprising a rotating table (1) provided with a liquid inlet assembly on the inner side and a liquid cylinder (2) arranged at the end of the rotating table (1), at least one set of filling pipes (72) being arranged below the liquid cylinder (2), characterized in that, Also include: Integrated bottle hoisting mechanism, including top-down coaxial arrangement of top hoisting assembly (3), middle hoisting assembly (4) and bottom hoisting assembly (5); Wherein, the top hoisting assembly (3) includes valve installation ring plate (31) and hoisting rod one (32) connected with liquid cylinder (2), and filling pipe (72) is vertically arranged on valve installation ring plate (31); The middle hoisting assembly (4) includes bottle neck support plate (41) and hoisting rod two (42), and the bottle neck support plate (41) is provided with a first edge notch matched with the bottle neck; The bottom hoisting assembly (5) includes bottle protection ring block (51) and hoisting rod three (52), and the bottle protection ring block (51) is provided with a second edge notch matched with the bottle body; The hoisting rod one (32), the hoisting rod two (42) and the hoisting rod three (52) are a plurality of groups of array structure around, and the hoisting rod two (42) and the hoisting rod three (52) are coaxially arranged to form an integrated support frame, so that the bottle body arranged on the integrated bottle body hoisting mechanism can be in a suspended state and rotate synchronously.

2. The liquid filler machine of claim 1, wherein, The first edge notch depth of the bottle neck support plate (41) is matched with the bottle neck diameter, and the second edge notch arc of the bottle protection ring block (51) is matched with the bottle body curvature, and the two form three-point positioning constraint.

3. The liquid filler machine of claim 1, wherein, Also include servo blanking mechanism, the servo blanking mechanism is arranged at the bottom edge of the liquid cylinder (2), and the servo blanking mechanism includes a plurality of discharge assemblies (6) and filling assemblies (7) arranged around, the discharge assembly (6) includes a gear pump (61) and a guide inclined pipe (62) connected with the gear pump (61), and the filling assembly (7) includes a filling valve (71) arranged on the valve installation ring plate (31) and a filling pipe (72); Wherein, the gear pump (61) is communicated with the liquid cylinder (2), and the guide inclined pipe (62) connects the gear pump (61) with the filling valve (71).

4. The liquid filler machine of claim 3, wherein, The filling valve (71) is vertically arranged on the valve installation ring plate (31); The guide inclined pipe (62) includes a vertical pipe and an inclined pipe; Wherein, the inclined pipe part of the guide inclined pipe (62) is connected with the filling valve (71), the filling pipe (72) passes through the through slot on the valve installation ring plate (31) plate body, and the bottom end of the filling pipe (72) is opposite to the edge notch of the bottle neck support plate (41), the filling pipe (72) vertically penetrates the through slot (311) of the valve installation ring plate (31) and is opposite to the center of the bottle mouth.

5. The liquid filler as claimed in claim 3, characterized in that The liquid cylinder (2) is a ring cylinder, and the connection with the guide inclined pipe (62) is located at the end of the centrifugal direction, and the liquid cylinder (2) and the rotating table (1) are adjusted in height by the lifting assembly (12), which includes screwing lifting shaft (122) and lifting base (121).

6. The liquid filler as claimed in claim 3, characterized in that The gear pump (61) is a pump body driven by a servo motor.

7. The liquid filler as claimed in claim 5, characterized in that Also include bottle input mechanism and bottle output mechanism, the bottle input mechanism includes an input disc, the bottle output mechanism includes an output disc, the edge of the input disc and the output disc is provided with a corresponding transport notch, the number of the transport notch of the input disc and the output disc is twenty-four to eight, and the number of the edge notch of the bottle neck support plate (41) and the bottle protection ring block (51) is eight. Wherein, the transport notch is a screw cap position, and the edge notch is a filling position.

8. The liquid filler of claim 1, wherein Further comprising a lifting baffle (8) fixedly arranged at the bottom end edge of the rotating table (1); The lifting baffle (8) is an annular baffle driven to lift by a cylinder, and the plane where the annular baffle is located is between the bottle neck supporting plate (41) and the bottle protecting ring block (51), and the annular baffle, the bottle neck supporting plate (41) and the bottle protecting ring block (51) form a bottle body limiting channel with no bottom support.

9. The liquid filler according to claim 8, characterized in that The inner wall of the lifting baffle (8) is provided with a flexible buffer layer, and the lifting stroke covers two-thirds of the height of the bottle body.

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