CN115072023B - Weighing type filling machine - Google Patents

Abstract

The application relates to a weighing type filling machine, which comprises a rack, wherein a conveying mechanism is arranged on the rack and used for conveying a filled container; the filling head is positioned above the conveying mechanism and is used for filling the containers; the material bin is connected with the filling head and used for storing materials; the material box is used for filling materials in the material bin; the weighing mechanism is positioned below the material bin and used for supporting and weighing the material bin; the filling head comprises a feed inlet which is connected with the material bin, the feed inlet is connected with the material bin through a soft buffer tube, and the length of the buffer tube is greater than the distance between the feed inlet and the material bin. When the frame takes place the vibration, when the filling head passes through the feed inlet with vibrational force to the material storehouse transmission, because the buffer tube is soft and the longer whole of length is the lax state, the buffer tube can absorb vibrational force, reaches the effect of buffering the damping to the material storehouse. Therefore, the influence of the vibration of the rack on the material bin is small, and the weighing precision of the material bin is high.

Description

Weighing type filling machine

Technical Field

The application relates to the field of material packaging, in particular to a weighing type filling machine.

Background

At present, the liquid filling machine can carry out the material filling such as liquid, and present liquid filling machine adopts the volume measurement mode mostly, and this kind of liquid filling machine lies in that the calibration of weighing needs after filling at every turn. Therefore, a weighing sensor is usually disposed below the bin to weigh the material in the bin.

Chinese patent publication No. CN105599945A, which may be referred to in the related art, discloses an upper weighing and filling machine, which includes a frame, a material box fixed on the top of the frame, a lifting frame slidably connected to the frame in the vertical direction, a plurality of weighing control units installed on the lifting frame, a container conveying device installed on the frame and located below the plurality of weighing control units, and a lifting motor installed on the frame and driving the lifting frame to lift; the bottom of the feed box is provided with a plurality of discharge ports which are respectively communicated with inlets of a plurality of weighing control units. The weighing control unit comprises a feeding pipe, a material cavity, a weighing sensor, a weighing support, a discharging control cylinder, a vacuum suction pipe, a discharging plug, a feeding pipe control valve, a discharging head, an adjusting handle, an adjusting rod, an adjusting gear, a locking sleeve, a locking handle and a plug sealing piece.

When the filling machine is used for weighing, the weighing sensor is used for weighing the material cavity, the material cavity is arranged on the rack through the weighing support, when the rack is vibrated externally, the vibration force can be transmitted to the material cavity through the weighing support, and the material cavity is vibrated by the vibration force, so that the weighing precision of the material cavity can be influenced.

Disclosure of Invention

In order to improve and weigh the precision, this application provides a weigh formula liquid filling machine.

The application provides a weigh formula liquid filling machine adopts following technical scheme:

a weighing type filling machine comprises a rack, wherein a conveying mechanism is arranged on the rack and used for conveying a filled container; the filling head is positioned above the conveying mechanism and is used for filling the containers; the material bin is connected with the filling head and used for storing materials; the material box is used for filling materials in the material bin; the weighing mechanism is positioned below the material bin and is used for supporting and weighing the material bin; the filling head is including being used for the feed inlet that links to each other with the material storehouse, link to each other through soft buffer tube between feed inlet and the material storehouse, and the length of buffer tube is greater than the distance between feed inlet and the material storehouse.

Through adopting above-mentioned technical scheme, carry to filling head below through transport mechanism by the filling container, the material in the material storehouse flows into the feed inlet through the buffer tube, and in rethread feed inlet flowed into the filling head, the filling head was arranged the material into the container and was filled. After the filling is finished, the weighing mechanism weighs the material bin. The material bin is only provided with two parts connected with the outside, one part is that the bottom of the material bin is connected with a weighing mechanism, and the weighing mechanism weighs the material bin, so that the material bin and the weighing mechanism are directly connected. And the material bin is connected with the filling head through a buffer tube and used for discharging materials. At the in-process of weighing, when the frame took place to vibrate, the filling head followed the vibration, and the filling head passes through the vibrational force when the feed inlet transmits to the material storehouse, because the buffer tube is soft and the longer whole of length is the relaxation state, and the buffer tube can absorb the vibrational force to reduce the vibrational force that the material storehouse received, reach the effect of buffering the damping to the material storehouse. Therefore, the influence of the vibration of the rack on the material bin is small, and the weighing precision of the material bin is high.

Optionally, the two ends of the buffer tube are provided with connecting plates, the outer wall of the buffer tube is connected with an energy dissipation plate in a sliding manner, energy dissipation springs located on two sides of the energy dissipation plate are sleeved on the outer wall of the buffer tube, one end of each energy dissipation spring is connected with the energy dissipation plate, and the other end of each energy dissipation spring is connected with the connecting plate.

Through adopting above-mentioned technical scheme, when the buffer tube received the vibrational force, energy dissipation spring atress vibration drove the energy dissipation board reciprocating sliding on the buffer tube, and energy dissipation spring absorbs the vibrational force to turn into its kinetic energy of energy dissipation board, thereby improve the buffering effect of buffer tube.

Optionally, a connection hole for connecting with the buffer tube is formed in the connection plate, and the connection hole is in threaded connection with the outer wall of the buffer tube.

By adopting the technical scheme, the connecting plate is connected with the buffer tube through the threads, so that the position of the connecting plate can be adjusted, the distance between the connecting plate and the energy dissipation plate is changed, and the elasticity of the energy dissipation spring is adjusted to meet the buffering requirements under different working conditions.

Optionally, the tip of buffer tube is equipped with the go-between that links to each other with material storehouse and feed inlet respectively, the external diameter of buffer tube is less than the internal diameter of go-between, and links to each other through soft annular seal membrane is sealed between the inner wall of go-between and the buffer tube outer wall, circumference is equipped with a plurality of radial springs between the inner wall of go-between and the outer wall of buffer tube.

By adopting the technical scheme, the end part of the buffer tube is connected with the connecting ring through the sealing film, and the sealing film can play a sealing role and also can play a certain buffering effect. When the buffer tube is vibrated along the axial direction, the buffer tube can absorb the vibration, and when the buffer tube is vibrated along the radial direction, the radial spring and the sealing film are matched with each other to buffer and damp the buffer tube, so that the damping effect of the buffer tube is further improved.

Optionally, the material tank is connected with a material conveying hose for conveying materials, and the material conveying hose is connected with one end, far away from the buffer tube, of the feeding hole.

Through adopting above-mentioned technical scheme, the material case carries out the material to the material storehouse and supplyes, nevertheless prevents that the material case from giving the material storehouse with the vibrational force, and defeated material hose links to each other with the filling head, fills the feed supplement to the material storehouse through the filling head, and the feed inlet can enough feed also can the ejection of compact, and a pipe is dual-purpose, convenient to use. And the material box is also connected with the material bin through the buffer tube, and the influence of the vibration of the material box on the material bin is small, so that the weighing precision of the material bin is further ensured.

Optionally, the weighing mechanism includes the fixed base station that links to each other with the frame, be equipped with weighing sensor on the base station, the vertical sliding connection of one side that weighing sensor deviates from the base station has the brace table that is used for supporting the material storehouse, the standing groove that is used for placing the material storehouse is seted up to the brace table upper surface, the opening that is used for placing the material storehouse is seted up to one side of standing groove, sliding connection has the baffle that is used for opening and close the opening on the brace table.

Through adopting above-mentioned technical scheme, when installing the material storehouse, open the opening, with the material storehouse slide in the standing groove, slide damper keeps off the opening and dies to be fixed in the standing groove with the material storehouse. The material storehouse passes through the standing groove and links to each other with the brace table, stable in structure, easy dismounting.

Optionally, one surface of the baffle, which faces the material bin, is horizontally and slidably connected with a clamping plate for clamping the material bin, the clamping plate is horizontally and rotatably connected with a clamping rod penetrating through the baffle, and the clamping rod is in threaded connection with the baffle.

Through adopting above-mentioned technical scheme, the physics storehouse is placed in the standing groove, and operating personnel rotates the clamping rod, and the clamp plate horizontal slip is close to the material storehouse, presss from both sides tightly the material storehouse, improves the stability that the material storehouse is connected with a supporting bench.

Optionally, an adjusting rod horizontally arranged is fixed on the rack, a horizontal seat is horizontally connected to the adjusting rod in a sliding mode, a lifting seat is vertically connected to the horizontal seat in a sliding mode, the filling head is fixedly connected with the lifting seat, a lifting rod is arranged on the rack, and the lifting rod is connected with all the lifting seats.

Through adopting above-mentioned technical scheme, the horizontal seat slides on adjusting the pole and can change the interval between the filling head to can carry out corresponding regulation, convenient to use according to the size of the container that is filled. During filling, the lifting seat can drive the filling head to move up and down, so that filled containers with different heights can be filled, and the application range is wide.

Optionally, horizontal sliding connection has the cleaning plate that is located between filling head and the transport mechanism in the frame, the cleaning tank of indent is seted up to the cleaning plate upper surface, the cleaning tank even has the cleaning tube that is used for washing liquid exhaust, the one end that the cleaning tank was kept away from to the cleaning tube even has the washing case, even there is the recoil pipe between washing case and the material case.

Through adopting above-mentioned technical scheme, when the filling was finished and is needed to wash material storehouse and filling head, slip cleaning sheet to filling head under, wash the incasement and inject the washing liquid, the washing liquid is squeezed into the material incasement through the recoil pipe, the material case is squeezed into each material storehouse with the washing liquid in, the material storehouse is squeezed into the filling head with the washing liquid in, on the tip blowout inflow cleaning sheet of follow filling head to through the scavenge pipe backward flow to wash incasement formation circulation. The cleaning liquid can be repeatedly used, and water sources are saved.

Optionally, a transmission shaft is rotatably connected to the side wall of the rack, a linkage gear and a transmission gear are coaxially fixed on the transmission shaft, a linkage rack meshed with the linkage gear is vertically fixed on the lifting rod, a control cylinder for controlling the linkage rack to move up and down is arranged on the rack, a transmission rack meshed with the transmission gear is horizontally fixed on the cleaning plate, and the outer diameter of the transmission gear is larger than that of the linkage gear.

Through adopting above-mentioned technical scheme, the filling head has two kinds of states, and one is normal filling state, and one is the washing state. When the filling head normally fills, the output shaft of control cylinder stretches out, and the interlock rack descends, and the lifter drives the first downstream of filling and is removed towards by the filled container to the filling. Meanwhile, when the linkage rack descends, the linkage gear drives the transmission gear to synchronously rotate through the transmission shaft, the transmission gear drives the cleaning plate to horizontally move through the transmission rack, and the cleaning plate is moved away from the lower side of the filling head so that the filling head can be filled. When the filling head is in the cleaning state, the output shaft of the control cylinder is retracted, the filling head is located uppermost and, at this point, the washing plate is located directly below the filling head, and the washing liquid is ejected from below the filling head onto the washing plate. Through the setting of drive gear and interlock gear, the synchronous interlock of motion of cleaning plate and filling head goes on to the synchronous control to both movements is realized to accessible one control cylinder, convenient to use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the buffer tube, the material bin is only directly connected with the weighing mechanism, the gravity of the material bin directly acts on the weighing mechanism, and when the vibration force borne by the filling head is transmitted to the material bin, the buffer tube absorbs and damps the vibration force, so that the weighing precision of the material bin is improved;

2. through the setting of energy dissipation board and energy dissipation spring, the vibrational force that the buffer tube received is absorbed by the energy dissipation spring to further improve the buffering effect of buffer tube, reduce the influence of the vibration that the material storehouse receives.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Figure 2 is a schematic view of the connection of the bin to the weighing mechanism of the present invention.

Figure 3 is a schematic view of the connection between the material bin and the support platform according to the present invention.

Fig. 4 is a schematic view of the connection of the filling head to the buffer tube in the present invention.

Fig. 5 is a schematic view of the internal structure of the present invention with the material bin and the weighing mechanism removed.

Fig. 6 is a schematic structural view for showing the interlocking mechanism in the present invention.

Description of reference numerals: 1. a frame; 11. adjusting a rod; 12. a horizontal base; 13. a lifting seat; 14. a lifting rod; 141. a linkage rack; 142. controlling the air cylinder; 15. a drive shaft; 16. a linkage gear; 17. a transmission gear; 2. a transport mechanism; 3. a filling head; 31. a feeding pipe; 311. a feed inlet; 32. filling tubes; 4. a material bin; 41. a discharge pipe; 5. a material box; 51. a delivery hose; 6. a weighing mechanism; 61. a base station; 62. a weighing sensor; 63. a support table; 631. a placement groove; 632. an opening; 64. a baffle plate; 65. a clamping plate; 651. a clamping lever; 7. a buffer tube; 71. a connecting plate; 711. connecting holes; 72. an energy dissipation plate; 73. an energy dissipation spring; 74. a connecting ring; 75. a sealing film; 76. a radial spring; 8. cleaning the plate; 81. a cleaning tank; 82. cleaning the pipe; 83. a drive rack; 9. a cleaning tank; 91. the tube is flushed back.

Detailed Description

The present application is described in further detail below with reference to all of the figures.

Examples

The embodiment of the application discloses formula of weighing liquid filling machine, refers to fig. 1, including frame 1, is equipped with material case 5, material storehouse 4, weighing machine 6, filling head 3 and transport mechanism 2 on the frame 1. The filled container is conveyed to the position under the filling head 3 through the conveying mechanism 2, the material flows into the material bin 4 through the material box 5, and the weighing mechanism 6 weighs the material bin 4 so as to judge the residual amount of the material in the material bin 4. The material bin 4 is thrown into the filling head 3 with the material, and the filling head 3 is filled into the container with the material.

Referring to fig. 1, a material tank 5 is fixed on the top of a frame 1, the lower end of the material tank 5 is connected with an output pipe, the output pipe is connected with a plurality of delivery hoses 51 for feeding materials to a material bin 4, and the number of the delivery hoses 51 is consistent with that of the material bins 4. The material bin 4 is provided with a plurality of material bins 5 below which are located, and is used for storing the materials filled into the filling heads 3. After each filling, the weighing mechanism 6 weighs the material bin 4, and when the material in the material bin 4 is less, the material box 5 supplements the material in the material bin 4.

Referring to fig. 1 and 2, the weighing mechanism 6 includes a support table 63, a load cell 62, and a base 61, which are provided in this order from top to bottom. A weighing mechanism 6 is arranged below each material bin 4, and the weighing mechanisms 6 correspond to the material bins 4 one by one. Base station 61 links to each other with frame 1 is fixed, and supporting bench 63 is vertical sliding connection on base station 61, and the lower surface of supporting bench 63 offsets with weighing sensor 62. The support table 63 is located right below the material bin 4 and supports the material bin 4. The weight of the material container 4 is transmitted to the load cell 62 through the support base 63, and the weight of the material in the material container 4 is weighed.

Referring to fig. 3, a placing groove 631 for placing the storage bin 4 is formed on the upper surface of the support base 63. An opening 632 used for pushing the material bin 4 is formed in one side of the placing groove 631, and the material bin 4 can slide into the placing groove 631 through the opening 632, so that the material bin 4 is convenient to mount.

Referring to fig. 3, a shutter 64 for opening and closing the opening 632 is slidably connected to the opening 632, and the shutter 64 can completely open or close the opening 632. After the material bin 4 is placed in the placing groove 631, the baffle plate 64 is inserted into the opening 632 to close the opening 632. At this time, the material bin 4 is locked in the placing groove 631, and the material bin 4 is not easy to fall off.

Referring to fig. 3, a clamping plate 65 for clamping the material bin 4 is horizontally slidably connected to one surface of the baffle plate 64 facing the material bin 4, a clamping rod 651 penetrating through the baffle plate 64 is rotatably connected to one surface of the clamping plate 65 facing away from the material bin 4, and the clamping rod 651 is in threaded connection with the baffle plate 64. The material bin 4 is placed in the placing groove 631 and the baffle plate 64 is inserted into the opening 632. The clamping rod 651 rotates, the clamping plate 65 moves towards the material bin 4 and clamps and fixes the material bin 4, and the stability of the material bin 4 is improved.

Referring to fig. 2, the side of material storehouse 4 is equipped with the discharging pipe 41 that is located a supporting bench 63 top, and discharging pipe 41 links to each other with filling head 3 for the circulation of material, and filling head 3 quantity is unanimous with material storehouse 4 quantity, and filling head 3 links to each other with material storehouse 4 one-to-one.

Referring to fig. 4, the filling head 3 comprises a vertical filling tube 32 and a horizontally arranged feed tube 31, the feed tube 31 being connected to the filling tube 32, and the end of the feed tube 31 remote from the filling tube 32 being a feed inlet 311. The inlet 311 is connected to the outlet 41 via a soft buffer tube 7, and the length of the buffer tube 7 is greater than the distance between the inlet 311 and the outlet 41, i.e. the buffer tube 7 is in a loose state.

Referring to fig. 2 and 4, the material in material bin 4 flows into feed tube 31 through buffer tube 7 and flows into filling tube 32 through feed tube 31, and filling tube 32 discharges the material for filling. After the filling, when weighing mechanism 6 weighs material storehouse 4, frame 1 receives the vibration, and filling head 3 is with vibrating together, and when filling head 3 passed through 7 transmission vibrations of buffer tube, because buffer tube 7 is soft material and makes, and buffer tube 7's length is longer moreover, and the vibrational force that buffer tube 7 received is absorbed by a wide margin to the vibrational force that transmits to on the material storehouse 4 is less, and the vibration influence that material storehouse 4 received is less. The weighing mechanism 6 is accurate in weighing the material bin 4.

Referring to fig. 4, connection plates 71 are screwed to both ends of the buffer tube 7, and a connection hole 711 for connecting to the buffer tube 7 is opened in the center of the connection plate 71. The outer wall of buffer tube 7 is slidably connected with a energy dissipation plate 72 between two connecting plates 71. Energy dissipation springs 73 positioned on two sides of the energy dissipation plate 72 are sleeved on the outer wall of the buffer tube 7, one end of each energy dissipation spring 73 is connected with the energy dissipation plate 72 in an abutting mode, and the other end of each energy dissipation spring 73 is connected with the connecting plate 71 in an abutting mode.

Referring to fig. 4, when buffer tube 7 is subjected to a vibration force, energy dissipation spring 73 is subjected to force vibration and drives energy dissipation plate 72 to slide on buffer tube 7 in a reciprocating manner, and energy dissipation spring 73 absorbs the vibration force and converts the vibration force into kinetic energy of energy dissipation plate 72, so that the buffering effect of buffer tube 7 is improved.

Referring to FIG. 4, the end of buffer tube 7 is provided with attachment rings 74, one attachment ring 74 being bolted to inlet 311 and the other attachment ring 74 being bolted to outlet 41. The inner diameter of the connection ring 74 is larger than the outer diameter of the buffer tube 7, the inner wall of the connection ring 74 and the inner wall of the buffer tube 7 are connected by an annular sealing film 75, and the sealing film 75 is made of a soft material.

Referring to fig. 4, the sealing film 75 is soft and can seal the end of the buffer tube 7, and when the buffer tube 7 receives a vibration force in the radial direction, the sealing film 75 can vibrate in advance to absorb the vibration force, thereby reducing the vibration force received by the buffer tube 7 and improving the buffering effect of the buffer tube 7.

Referring to fig. 2 and 4, a plurality of radial springs 76 are circumferentially disposed between the inner wall of the attachment ring 74 and the outer wall of the buffer tube 7. In the natural state of all radial springs 76, the buffer tube 7 is coaxial with the coupling ring 74. When buffer tube 7 received radial vibrational force, radial spring 76 atress vibration to reduce the vibrational force that the seal membrane 75 received, protect seal membrane 75, also improve buffer tube 7's damping effect, guarantee the weighing precision of material storehouse 4.

Referring to fig. 1 and 4, when the material bin 4 is weighed and the material is found to be small, the material in the material tank 5 is fed into the material bin 4 through the feed hose 51.

Referring to fig. 1 and 4, one end of the feed delivery hose 51 far away from the material tank 5 is connected to one end of the feed pipe 31 near the filling pipe 32, and a three-way valve is arranged at the joint of the feed delivery hose 51, the filling pipe 32 and the feed pipe 31. When the filling tube 32 is communicated with the feeding tube 31, the material in the material bin 4 flows into the filling tube 32 through the feeding tube 31 for filling. When the filling pipe 32 is communicated with the delivery hose 51, the material in the material tank 5 is thrown into the material bin 4 to supplement the material in the material bin 4.

Referring to fig. 2 and 4, the feed hose 51 is not directly connected to the material storage 4, but is connected to the feed pipe 31. With the arrangement, the material bin 4 is integrally connected with the outside only at two positions. Firstly, the bottom of the material bin 4 is connected with a supporting table 63, the supporting table 63 is used for weighing the material bin 4, and the two are directly connected, so that the weighing precision can be ensured; secondly, the material bin 4 is connected with a feeding pipe 31 through a buffer pipe 7. No matter material storehouse 4 carries out the filling or the feed supplement all carries out the material circulation through discharging pipe 41, and material storehouse 4 is less with the continuous position of frame 1, and consequently, when frame 1 vibrates, the vibration is less for the vibrational force in material storehouse 4 through filling head 3 or material case 5 (see figure 1) transmission, and the influence of the vibration that material storehouse 4 receives is less to can guarantee the weighing accuracy in material storehouse 4.

Referring to fig. 5, during filling, the conveying mechanism 2 conveys the filled container to a position right below the filling head 3, and the filling head 3 fills the container with the material. Conveying mechanism 2 is the conveyer belt, and the conveyer belt is located filling head 3 directly under.

Referring to fig. 5, in order to ensure that filling can be continuously performed, when the containers are conveyed by the conveyor belt, the containers are sequentially and tightly arranged, the distance between the filling heads 3 is the diameter of the containers, and the arrangement can ensure that each filling head 3 is right below one container.

With reference to fig. 5, the spacing between the filling heads 3 is also different when filling containers of different diameters. Frame 1 is last to be fixed with the regulation pole 11 that the level set up, adjusts pole 11 and goes up horizontal sliding connection and have level seat 12, and vertical sliding connection has lift seat 13 on the level seat 12, and filling head 3 links to each other with lift seat 13 is fixed. The horizontal lifting hole has been seted up on the lift seat 13, and the downthehole lifter 14 that wears to be equipped with of lift, lifter 14 run through all lifting holes, and lifter 14 links to each other with all lift seats 13 simultaneously promptly, and lifter 14 slides from top to bottom and drives all lift seats 13 and slide from top to bottom, drives all filling heads 3 and slides from top to bottom promptly.

Referring to fig. 5, when containers of different diameters are filled, the horizontal seat 12 slides, and the horizontal seat 12 drives the filling heads 3 to slide on the adjusting rods 11, so that the positions of the filling heads 3 are adjusted, and the distance between the filling heads 3 is adjusted. The horizontal seat 12 is connected with a locking bolt through threads, and the locking bolt is rotated to be abutted against the adjusting rod 11, so that the horizontal seat 12 can be locked and fixed.

Referring to fig. 5, when filling the container of co-altitude, lift seat 13 drives filling head 3 up-and-down motion to guarantee that filling head 3 is located the top of container, can carry out the filling to the container.

With reference to fig. 1 and 5, a wash plate 8 is attached to the frame 1 horizontally and slidably between the filling head 3 and the transfer mechanism 2. When filling head 3 is located the highest point, wash plate 8 is located the below of filling head 3. When different materials are filled, the material bin 4, the material box 5 and the filling head 3 need to be cleaned. Cleaning liquid is added into the material box 5, the cleaning liquid flows into the material bin 4, the cleaning plate 8 is slid to the position right below the filling head 3, the cleaning liquid flows into the filling head 3 from the material bin 4 and flows out of the filling head 3, and cleaning is completed. The cleaning plate 8 collects and accepts the cleaning liquid to prevent the cleaning liquid from overflowing. During normal filling, the cleaning plate 8 slides open and is staggered with the filling head 3, and materials flow out of the filling head 3; during the washing, wash plate 8 slides to under filling head 3, shelters from filling head 3.

Referring to fig. 5, the washing tank 81 of indent is seted up to cleaning plate 8 upper surface, and washing tank 81 slope sets up, and washing tank 81's the least significant end even has the scavenge pipe 82 that is used for the discharge cleaning liquid, and the one end that wash plate 8 was kept away from to scavenge pipe 82 even has washing case 9. The cleaning liquid on the cleaning plate 8 flows into the cleaning tank 9 through the cleaning pipe 82, and the cleaning tank 9 collects the cleaning liquid.

Referring to fig. 1 and 5, a back washing pipe 91 is connected between the cleaning tank 9 and the material tank 5, and a filter screen positioned between the back washing pipe 91 and the cleaning pipe 82 is arranged inside the cleaning tank 9. The cleaning liquid is filled in the cleaning tank, and the cleaning liquid is pumped into the material tank 5 through the back flushing pipe 91, flows into the material bin 4 through the material tank 5, is discharged through the filling head 3, and finally flows back into the cleaning tank 9. The filter screen filters the cleaning liquid flowing back to the cleaning box 9, and the clean cleaning liquid flows into the material box 5 again for recycling, so that water resources are saved.

Referring to fig. 5, when the material tank 5 is filled, the cleaning plate 8 needs to be avoided, so that the filling head 3 needs to descend to approach the container; when the material box 5 is cleaned, the filling head 3 is positioned at the highest position, and the cleaning plate 8 is positioned under the filling head 3. In order to prevent the filling head 3 from descending, the cleaning plate 8 avoids the collision caused untimely, and the side wall of the frame 1 is provided with a linkage mechanism.

Referring to fig. 5 and 6, the interlocking mechanism includes a transmission shaft 15 rotatably connected to the side wall of the frame 1, an interlocking gear 16 and a transmission gear 17 are coaxially fixed on the transmission shaft 15, and the diameter of the transmission gear 17 is larger than that of the interlocking gear 16. A vertically disposed interlocking rack 141 is fixed to an end of the lift lever 14, and the interlocking rack 141 is engaged with the interlocking gear 16. A control cylinder 142 for controlling the interlocking rack 141 to slide up and down is provided on the side wall of the frame 1. When the output shaft of the control cylinder 142 extends, the interlocking rack 141 drives the lifting rod 14 to descend, and the filling head 3 descends accordingly. When the output shaft of the control cylinder 142 contracts, the interlocking rack 141 drives the lifting rod 14 to rise, and the filling head 3 rises.

Referring to fig. 5 and 6, a horizontally disposed driving rack 83 is fixed to a side wall of the cleaning plate 8, the driving rack 83 is engaged with the driving gear 17, and the driving rack 83 is disposed to be offset from the interlocking rack 141. When the output shaft of the control cylinder 142 is in the contracted state, the filling head 3 is positioned highest, and the wash plate 8 is positioned directly below the filling head 3. When the output shaft of the control cylinder 142 extends, the interlocking rack 141 drives the interlocking gear 16 to rotate, the transmission gear 17 rotates, and the transmission rack 83 drives the cleaning plate 8 to slide and avoid from the lower part of the filling head 3, so that the filling head 3 can move downwards conveniently. And the diameter of the transmission gear 17 is larger, so that the moving speed of the cleaning plate 8 is higher than that of the filling head 3, and the collision between the cleaning plate and the filling head is avoided.

The implementation principle of the weighing type filling machine in the embodiment of the application is as follows: during the filling, the conveyer belt is carried the container to filling head 3 under, and filling head 3 descends, and the material flows into filling head 3 from material storehouse 4 in, in the container was flowed into from filling head 3, accomplished the filling. After filling, the weighing sensor 62 weighs the material bin 4, and when the material is insufficient, the material in the material box 5 is supplemented into the material bin 4 through the conveying hose. Before different materials are filled, cleaning liquid is poured into the cleaning box 9, the cleaning liquid is squeezed into the material box 5 and flows through the material bin 4 and the filling head 3 to the cleaning plate 8 to flow back into the cleaning box 9, and cleaning is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. A weigh formula liquid filling machine, includes frame (1), its characterized in that: the rack (1) is provided with a conveying mechanism (2) for conveying the filled container; the filling head (3) is positioned above the conveying mechanism (2) and is used for filling the containers; the material bin (4) is connected with the filling head (3) and is used for storing materials; the material box (5) is used for filling materials in the material bin (4); the weighing mechanism (6) is positioned below the material bin (4) and is used for supporting and weighing the material bin (4); the filling head (3) is including being used for feed inlet (311) continuous with material storehouse (4), link to each other through soft buffer tube (7) between feed inlet (311) and material storehouse (4), and the length of buffer tube (7) is greater than the distance between feed inlet (311) and material storehouse (4), the tip of buffer tube (7) is equipped with go-between (74) that link to each other with material storehouse (4) and feed inlet (311) respectively, the external diameter of buffer tube (7) is less than the internal diameter of go-between (74), and through annular seal membrane (75) of soft buffer tube between inner wall and buffer tube (7) outer wall sealed continuous, circumference is equipped with a plurality of radial spring (76) between the inner wall of go-between (74) and the outer wall of (7), material case (5) even have horizontal hose (51) that are used for transmitting the material, the one end that buffer tube (7) was kept away from to feed inlet (51) and feed inlet (311) is continuous, be fixed with the regulation pole (11) that the level set up and down on frame (1), the regulation pole (11) go up horizontal sliding connection has horizontal seat (12), the filling head (12) and lifting and dropping seat (13) are connected with the frame (13) on the frame (13), lifter (14) link to each other with all lift seats (13), frame (1) is improved level sliding connection and is located washing board (8) between filling head (3) and transport mechanism (2), washing tank (81) of indent have been seted up to washing board (8) upper surface, washing tank (81) link has be used for washing liquid exhaust scavenge pipe (82), the one end that washing tank (81) were kept away from in scavenge pipe (82) links has washs case (9), it has recoil pipe (91) to link between washing case (9) and material case (5), rotate on frame (1) lateral wall and be connected with transmission shaft (15), coaxial being fixed with link gear (16) and drive gear (17) on transmission shaft (15), vertical being fixed with link gear (141) with link gear (16) engaged with on lifter (14), be equipped with control cylinder (142) of control link gear (141) up-and-down motion on frame (1), the level is fixed with drive gear (83) engaged with drive gear (17) on wasing board (8), the external diameter of drive gear (17) is greater than link gear (16).

2. A weighing filler as defined in claim 1 wherein: the energy dissipation device is characterized in that connecting plates (71) are arranged at two ends of the buffer tube (7), an energy dissipation plate (72) is connected to the outer wall of the buffer tube (7) in a sliding mode, energy dissipation springs (73) located on two sides of the energy dissipation plate (72) are sleeved on the outer wall of the buffer tube (7), one end of each energy dissipation spring (73) is connected with the energy dissipation plate (72), and the other end of each energy dissipation spring is connected with the connecting plates (71).

3. A weighing filler as defined in claim 2 in which: the connecting plate (71) is provided with a connecting hole (711) used for being connected with the buffer tube (7), and the connecting hole (711) is in threaded connection with the outer wall of the buffer tube (7).

4. A weighing filler as defined in claim 1 in which: weighing mechanism (6) include with fixed base station (61) that link to each other of frame (1), be equipped with weighing sensor (62) on base station (61), the vertical sliding connection in one side that weighing sensor (62) deviate from base station (61) has brace table (63) that is used for supporting material storehouse (4), standing groove (631) that are used for placing material storehouse (4) are seted up to brace table (63) upper surface, opening (632) that are used for placing material storehouse (4) are seted up to one side of standing groove (631), sliding connection has baffle (64) that are used for opening and close opening (632) on brace table (63).

5. A weighing filler as defined in claim 4 wherein: one surface of the baffle plate (64) facing the material bin (4) is horizontally connected with a clamping plate (65) used for clamping the material bin (4) in a sliding mode, the clamping plate (65) is horizontally connected with a clamping rod (651) penetrating through the baffle plate (64) in a rotating mode, and the clamping rod (651) is in threaded connection with the baffle plate (64).

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