Bag filling machine and filling method based on the bag filling machine

Abstract

The present invention discloses a bag filling machine and a filling method based on the bag filling machine. The bag filling machine comprises: a platform, which can fix the bag to be filled; a filling module, which comprises a filling head, a cantilever and a rotating mechanism, the filling head can inject liquid into the bag, the filling head is arranged on the cantilever, and the rotating mechanism can drive the cantilever to rotate; a spray module, the spray module is provided with a spray head, the spray head can spray liquid, and the rotating mechanism can drive the filling head to move between the bag and the spray module through the cantilever. Beneficial effect: The rotating mechanism and the cantilever enable the filling head to move between the bag and the spray module, and the spray head can spray liquid and clean the filling head. The filling head can inject liquid into the bag and can be moved to the spray module for cleaning, which is beneficial to improving the automatic cleaning ability of the filling head. The present invention relates to bag filling equipment and methods for filling liquid.

Description

Technical Field

[0001] The invention relates to bag filling equipment and method for filling liquid, in particular to a bag filling machine and a filling method based on the bag filling machine. Background Art

[0002] In the process of liquid packaging, plastic bags or barrels are often used to package large liquid products. Bag-packed products are generally cheaper than barrels, so they are widely used. The stability and hygiene of filling equipment are technical indicators that are valued in filling processing.

[0003] The bags used in bag production are usually equipped with a lid, which can be opened and closed on the bag. Before filling, the lid needs to be opened, and then liquid is injected into the bag through the filling tube. After filling, the lid needs to be reclosed. Since liquid is easy to splash during the filling process, the filling mechanism needs to be cleaned frequently by spraying during filling to avoid bacteria breeding or product contamination during the long filling process.

[0004] There are bag filling machines in the prior art that can automatically complete filling and capping. The technical defects of the bag filling machines in the prior art are: manual spraying is usually required to clean the filling mechanism during the filling process, and the automation level of the cleaning work of the filling mechanism is not high; the low automation level of the cleaning work of the filling mechanism leads to poor sealing of the environment around the filling mechanism, making the sanitation of the filling mechanism easily affected by environmental factors. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a bag filling machine with a high degree of automated cleaning and a filling method based on the bag filling machine.

[0006] The technical solutions adopted to solve the above technical problems are:

[0007] The bag filling machine includes: a platform, which can fix the bag to be filled; a filling module, which includes a filling head, a cantilever and a rotating mechanism, the filling head can inject liquid into the bag, the filling head is arranged on the cantilever, and the rotating mechanism can drive the cantilever to rotate; a spray module, the spray module is provided with a nozzle, the nozzle can spray liquid, and the rotating mechanism can drive the filling head to move between the bag and the spray module through the cantilever.

[0008] The above bagging machine has at least the following beneficial effects:

[0009] The rotating mechanism and cantilever allow the filling head to move between the bag and the spray module, and the spray head can spray liquid and clean the filling head. The filling head can inject liquid into the bag and move to the spray module for cleaning, which is beneficial to improve the automatic cleaning ability of the filling head.

[0010] In a possible embodiment of the present invention, a groove is provided on the spray module, and the spray head is provided in the groove. The inner side wall of the groove can be close to the outer side of the filling head, and the spray head can extend into the filling head. The inner side wall of the groove can be close to the outer side of the filling head, which can reduce the gap between the groove and the filling head, and can prevent the liquid sprayed by the spray module from splashing outside the filling head, which is conducive to further keeping the filling machine clean; the spray head can extend into the filling head, so that the spray head can clean the inside of the filling head, which is conducive to improving the cleanliness of the filling head.

[0011] In a possible embodiment of the present invention, a plurality of nozzles are provided in the groove, the outlet direction of the nozzles is parallel to the depth direction of the groove, a plurality of spray holes are provided on the surface of the nozzle head, the outlet direction of the spray holes is inclined to the depth direction of the groove; a plurality of first liquid discharge channels are provided in the groove, and the liquid in the groove can flow out of the spray module through the first liquid discharge channels. The nozzles are parallel to the depth direction of the groove, which is conducive to cleaning the end face of the filling head, the spray holes on the nozzle head are inclined to the depth direction of the groove, which is conducive to cleaning the inner side of the filling head, and the first liquid discharge channel can discharge the liquid sprayed by the spray module to the filling head to the outside of the spray module, and can discharge the liquid used for cleaning in a directional manner.

[0012] In a possible embodiment of the present invention, the bag filling machine further includes a cleaning module, the cleaning module includes a cleaning pipe, the cantilever is arranged between the cleaning pipe and the filling head, the rotating mechanism can drive the cantilever to rotate and connect the filling head with the cleaning pipe, and the cleaning pipe can pass liquid into the filling head. The cleaning pipe can pass liquid into the filling head, thereby achieving comprehensive cleaning of the filling module.

[0013] In a possible implementation of the present invention, the cleaning module further includes a container and a pump body. The container, the pump body, the filling head and the cleaning pipe can form a closed loop, and the pump body can drive the liquid to circulate between the container, the filling head and the cleaning pipe. The container can contain a cleaning liquid, and the pump body can drive the cleaning liquid to circulate between the container, the cleaning pipe and the filling head, so that the filling module can be fully cleaned.

[0014] In a possible embodiment of the present invention, the bagging machine further includes a cover pulling module, which includes a first clamping mechanism and a second clamping mechanism, the first clamping mechanism includes a first clamping head, the first clamping head can fix the bag on the platform, the second clamping mechanism includes a second clamping head, a third clamping head, a first translation mechanism and a second translation mechanism, the first translation mechanism can drive the second clamping head and the third clamping head to approach each other, and the second translation mechanism can drive the second clamping head and the third clamping head away from the platform. The first clamping mechanism and the second clamping mechanism can clamp the cover on the bag and realize assembly and disassembly, thereby improving the automation degree of the bagging machine.

[0015] In a possible implementation of the present invention, the capping module further includes a third translation mechanism, which can drive the second clamp and the third clamp away from the first clamp. The third translation mechanism can make the bag detach from the first clamp after the capping is completed, and then the first translation mechanism can loosen the second clamp and the third clamp and detach from the bag, so that the bag can be completely detached from the first clamp, the second clamp and the third clamp.

[0016] In a possible embodiment of the present invention, the bag filling machine further includes a conveying module, the conveying module includes a support plate and a fourth translation mechanism, the support plate is arranged between the bag and the platform, the support plate can be tilted relative to the platform, and the fourth translation mechanism can lift one side of the support plate and make the support plate tilt toward the platform. The support plate can be tilted toward the platform, so that the bag can slide out along the tilt direction of the support plate, which is conducive to further improving the automation of the bag filling machine.

[0017] In a possible embodiment of the present invention, the bag filling machine further includes an isolation module, which includes a plurality of partitions, each of which surrounds the platform and the top, and a sterilization lamp is also provided in the isolation module, which can illuminate the platform, the filling module and the spray module. The partitions can relatively isolate the platform, the filling module and the spray module from the external environment, which is conducive to reducing the risk of contamination during the filling process; the sterilization lamp can sterilize, thereby further reducing the risk of contamination during the filling process.

[0018] Filling method, the filling process is based on a bag filling machine, the bag opening is provided with a removable cover, and the filling process also includes the following steps:

[0019] Step a, the opening of the bag is clamped on the first clamp;

[0020] Step b, the third translation mechanism translates the second clamp and the third clamp to the two sides of the cover;

[0021] Step c: the first translation mechanism makes the second clamp and the third clamp approach each other and clamp the cover;

[0022] Step d, the second translation mechanism moves the second clamp and the third clamp away from the platform and separates the cover from the bag;

[0023] Step e: the rotating mechanism drives the filling head to rotate with the cantilever, the filling head is aligned with the opening of the bag, and the filling head injects liquid into the bag;

[0024] Step f, the rotating mechanism drives the filling head to rotate with the cantilever, the filling head leaves the opening of the bag, and the third translation mechanism drives the second clamp, the third clamp and the cover to approach the opening of the bag;

[0025] Step g, the second translation mechanism makes the second clamp and the third clamp approach the platform and makes the cover cover the opening of the bag;

[0026] Step h, the fourth translation mechanism tilts the support plate. The filling process can realize the automatic installation and removal of the lid and the filling of the liquid into the bag, and the bag can be automatically sent out after the filling is completed, thereby improving the automation level of the bag filling machine. A higher degree of automation can reduce the operator's contact with the bag filling machine, which is conducive to the isolation of the filling environment from the external environment and the improvement of the hygiene level of the filling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 and 2 A schematic diagram of a bag filling machine according to an embodiment of the present invention;

[0029] Figure 3 It is a partial schematic diagram of a bag filling machine according to an embodiment of the present invention;

[0030] Figure 4 It is a front view of a spray module according to an embodiment of the present invention;

[0031] Figure 5 For the embodiment of the present invention Figure 4 Left view of

[0032] Figure 6 For the embodiment of the present invention Figure 4 A top view of

[0033] Figure 7 For the embodiment of the present invention Figure 4 A cross-sectional view of section A;

[0034] Figure 8 For the embodiment of the present invention Figure 5 Sectional view of section B;

[0035] Fig. 9 This is a schematic diagram of the surface structure of a spray module according to an embodiment of the present invention;

[0036] Fig.10 A schematic diagram of the internal structure of a spray module according to an embodiment of the present invention;

[0037] Figures 11 to 18 A schematic diagram of the filling process of the bag filling machine according to an embodiment of the present invention;

[0038] Fig.19 It is a schematic diagram of the docking state of the filling head and the cleaning tube according to an embodiment of the present invention;

[0039] Reference numerals:

[0040] Filling module: filling head 101, cantilever 102, rotating mechanism 103, filling switch 104, buffer device 105;

[0041] Spray module: spray head 201, groove 202, spray pipe 203, liquid storage chamber 204, first liquid discharge channel 205, second liquid discharge channel 206, liquid inlet channel 207;

[0042] Cleaning module: cleaning pipe 301, container 302, pump body 303, drain valve 304;

[0043] Capping module: first clamp 401, second clamp 402, third clamp 403, first translation mechanism 404, second translation mechanism 405, third translation mechanism 406;

[0044] Conveying module: support plate 501, fourth translation mechanism 502;

[0045] Isolation module: partition 601, germicidal lamp 602;

[0046] Platform 701 , bag 702 , and cover 703 . DETAILED DESCRIPTION

[0047] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0048] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0049] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0050] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0051] Reference Figures 1 to 19 The bag filling machine includes: a platform 701, which can fix a bag 702 to be filled; a filling module, which includes a filling head 101, a cantilever 102 and a rotating mechanism 103, the filling head 101 can inject liquid into the bag 702, the filling head 101 is arranged on the cantilever 102, and the rotating mechanism 103 can drive the cantilever 102 to rotate; a spray module, the spray module is provided with a spray head 201, the spray head 201 can spray liquid, and the rotating mechanism 103 can drive the filling head 101 to move between the bag 702 and the spray module through the cantilever 102.

[0052] The above bagging machine has at least the following beneficial effects:

[0053] The rotating mechanism 103 and the cantilever 102 enable the filling head 101 to move between the bag 702 and the spray module, and the spray head 201 can spray liquid and clean the filling head 101. The filling head 101 can inject liquid into the bag 702 and can move to the spray module for cleaning, which is conducive to improving the automatic cleaning ability of the filling head 101.

[0054] Regarding the platform 701 , the filling module and the spraying module are arranged on the platform 701 , and the bag 702 is fixed on the platform 701 .

[0055] Regarding the bag 702, the bag 702 is provided with an inlet, and the periphery of the inlet is made of a hard material so that the inlet can maintain a fixed shape. The bag 702 is provided with a cover 703, and the cover 703 can detachably cover the inlet.

[0056] Regarding the filling head 101, a filling switch 104 is provided on the filling head 101. The filling switch 104 is a pneumatic valve, and the switch can control whether the filling head 101 outputs liquid. The filling head 101 is connected to a canning hose, and a buffer device 105 is also provided on the filling hose.

[0057] The buffer device 105 refers to a pipeline liquid buffer in the prior art, which can reduce the impact caused by the sudden change of liquid pipeline pressure by elastically changing the volume. When the material pump is turned on, the buffer device 105 can avoid problems such as excessive pressure in the filling hose and unstable filling flow.

[0058] Regarding the cantilever 102 , a channel for conveying liquid is provided inside the cantilever 102 , a filling hose is connected to the channel of the cantilever 102 from one end of the cantilever 102 , and a filling head 101 is provided at the other end of the cantilever 102 .

[0059] Regarding the rotating mechanism 103, the rotating mechanism 103 is arranged at one end of the cantilever 102, and the rotating mechanism 103 and the filling hose are arranged at the same end of the cantilever 102. The rotating mechanism 103 is a motor.

[0060] In this embodiment, a groove 202 is provided on the spray module, and the spray head 201 is provided in the groove 202. The inner side wall of the groove 202 can be close to the outer side of the filling head 101, and the spray head 201 can extend into the filling head 101. The inner side wall of the groove 202 can be close to the outer side of the filling head 101, which can reduce the gap between the groove 202 and the filling head 101, and can prevent the liquid sprayed by the spray module from splashing outside the filling head 101, which is conducive to further keeping the filling machine clean; the spray head 201 can extend into the filling head 101, so that the spray head 201 can clean the inside of the filling head 101, which is conducive to improving the cleanliness of the filling head 101.

[0061] Regarding the groove 202, the groove 202 is in a ring shape and surrounds the nozzle 201. The outlet of the filling head 101 is in a tubular shape, and the filling head 101 can be inserted into the groove 202 while the nozzle 201 is inserted into the filling head 101.

[0062] In this embodiment, a plurality of nozzles 203 are further provided in the groove 202, and the outlet direction of the nozzles 203 is parallel to the depth direction of the groove 202. A plurality of spray holes are provided on the surface of the nozzle head 201, and the outlet direction of the spray holes is inclined to the depth direction of the groove 202. A plurality of first liquid discharge channels 205 are further provided in the groove 202, and the liquid in the groove 202 can flow out of the spray module through the first liquid discharge channels 205. The nozzles 203 are parallel to the depth direction of the groove 202, which is conducive to cleaning the end face of the filling head 101. The spray holes on the nozzle head 201 are inclined to the depth direction of the groove 202, which is conducive to cleaning the inner side of the filling head 101. The first liquid discharge channel 205 can discharge the liquid sprayed by the spray module to the filling head 101 to the outside of the spray module, and can discharge the liquid used for cleaning in a directional manner.

[0063] Regarding the nozzles 203 , there are six nozzles 203 . The nozzles 203 extend vertically upward from the bottom surface of the groove 202 , and the nozzles 203 are evenly distributed in the groove 202 .

[0064] Regarding the spray holes, the end of the spray head 201 is hemispherical, and the spray holes are evenly distributed on the end surface of the spray head 201 to form radial channels.

[0065] Regarding the first liquid discharge channel 205, a liquid storage chamber 204 is further provided in the spray module, and the liquid in the first liquid discharge channel 205 can first flow into the liquid storage chamber 204, and then be discharged from the spray module. The liquid storage chamber 204 has a buffering effect on the liquid, so that the liquid accumulated in the groove 202 can be transferred to the liquid storage chamber 204 as much as possible, and then gradually discharged to the outside of the spray module through the liquid storage chamber 204.

[0066] Regarding the spray module, the spray device is provided with a liquid inlet channel 207, which can transport liquid to the spray head and the spray pipe. The spray module is also provided with a second liquid discharge channel 206 connected to the liquid storage chamber 204, and the liquid storage chamber 204 discharges the liquid to the outside of the spray module through the second liquid discharge channel 206.

[0067] In this embodiment, the bag filling machine further includes a cleaning module, which includes a cleaning pipe 301, a cantilever 102 is provided between the cleaning pipe 301 and the filling head 101, a rotating mechanism 103 can drive the cantilever 102 to rotate and connect the filling head 101 with the cleaning pipe 301, and the cleaning pipe 301 can pass liquid into the filling head 101. The cleaning pipe 301 can pass liquid into the filling head 101, thereby achieving comprehensive cleaning of the filling module.

[0068] Regarding the cleaning pipe 301 , the function of the cleaning pipe 301 is to continuously pass liquid into the filling head 101 , so as to fully clean the pipeline of the filling module through the flowing liquid. The function of the nozzle 201 is to spray liquid to the mouth of the filling head 101 .

[0069] In this embodiment, the cleaning module further includes a container 302 and a pump body 303. The container 302, the pump body 303, the filling head 101 and the cleaning pipe 301 can form a closed loop, and the pump body 303 can drive the liquid to circulate between the container 302, the filling head 101 and the cleaning pipe 301. The container 302 can contain a cleaning liquid, and the pump body 303 can drive the cleaning liquid to circulate between the container 302, the cleaning pipe 301 and the filling head 101, so that the filling module can be fully cleaned.

[0070] Regarding the container 302 , the container 302 is a balancing cylinder, and a drain valve 304 is provided at the bottom of the container 302 , which can discharge the liquid in the container 302 and remove the waste liquid in the container 302 .

[0071] In this embodiment, the bagging machine further includes a cover-pulling module, which includes a first clamping mechanism and a second clamping mechanism. The first clamping mechanism includes a first clamping head 401, which can fix the bag 702 on the platform 701. The second clamping mechanism includes a second clamping head 402, a third clamping head 403, a first translation mechanism 404, and a second translation mechanism 405. The first translation mechanism 404 can drive the second clamping head 402 and the third clamping head 403 to approach each other, and the second translation mechanism 405 can drive the second clamping head 402 and the third clamping head 403 away from the platform 701. The first clamping mechanism and the second clamping mechanism can clamp the cover 703 on the bag 702 and realize assembly and disassembly, thereby improving the automation of the bagging machine.

[0072] Regarding the first clamp 401 , a semicircular notch is provided on the first clamp 401 , and the notch can be clamped at the opening of the bag 702 , so that the bag 702 can be fixed on the platform 701 .

[0073] Regarding the second clamp 402 and the third clamp 403 , the second clamp 402 and the third clamp 403 are also respectively provided with semicircular notches, and the second clamp 402 and the third clamp 403 can approach and clamp the cover 703 from both sides of the cover 703 .

[0074] Regarding the first translation mechanism 404 , the first translation mechanism 404 is two symmetrically arranged cylinders and can drive the second clamp 402 and the third clamp 403 to approach each other and clamp the cover 703 .

[0075] Regarding the second translation mechanism 405, the second translation mechanism 405 is two cylinders. The second translation mechanism 405 can drive the second clamp 402 and the third clamp 403 to respectively move up and down relative to the platform 701. The second translation mechanism 405 can realize the operation of removing and installing the cap in combination with the first translation mechanism 404.

[0076] In this embodiment, the capping module further includes a third translation mechanism 406, which can drive the second clamp 402 and the third clamp 403 away from the first clamp 401. The third translation mechanism 406 can separate the bag 702 from the first clamp 401 after the capping is completed, and then the first translation mechanism 404 can loosen the second clamp 402 and the third clamp 403 and separate from the bag 702, so that the bag 702 can be completely separated from the first clamp 401, the second clamp 402 and the third clamp 403.

[0077] Regarding the third translation mechanism 406 , the third translation mechanism 406 is disposed on the bottom surface of the platform 701 and is a cylinder. The third translation mechanism 406 can drive the second translation mechanism 405 and the first translation mechanism 404 to approach or move away from the first chuck 401 at the same time.

[0078] In this embodiment, the bag filling machine further includes a conveying module, which includes a support plate 501 and a fourth translation mechanism 502. The support plate 501 is disposed between the bag 702 and the platform 701, and the support plate 501 can be tilted relative to the platform 701. The fourth translation mechanism 502 can lift one side of the support plate 501 and make the support plate 501 tilted toward the platform 701. The support plate 501 can be tilted toward the platform 701, so that the bag 702 can slide out along the tilting direction of the support plate 501, which is conducive to further improving the automation of the bag filling machine.

[0079] Regarding the conveying module, the conveying module further comprises a conveying belt, and the working surface of the conveying belt is lower than the platform 701. After the conveying module causes the bag 702 to slide out of the platform 701 at an angle, the bag 702 can fall onto the high conveying belt, so that the bag 702 can be further transported through the conveying belt.

[0080] In this embodiment, the bag filling machine further includes an isolation module, which includes a plurality of partitions 601, each of which surrounds and is located above the platform 701. A sterilization lamp is also provided in the isolation module, and the sterilization lamp can illuminate the platform 701, the filling module, and the spray module. The partition 601 can relatively isolate the platform 701, the filling module, and the spray module from the external environment, which is conducive to reducing the risk of contamination during the filling process; the sterilization lamp can sterilize, thereby further reducing the risk of contamination during the filling process.

[0081] Regarding the isolation module, the partition 601 is a rectangular flat plate, which encloses the isolation module into a rectangular space. The rectangular space accommodates the platform 701, the filling head 101, the spray module, the cleaning module, the first chuck 401, the second chuck 402 and the third chuck 403.

[0082] The filling method is based on a bag filling machine. The opening of the bag 702 is provided with a detachable cover 703. The filling process also includes the following steps:

[0083] Step a, the opening of the bag 702 is clamped on the first clamp 401;

[0084] Step b: The third translation mechanism translates the second clamp 402 and the third clamp 403 to the two sides of the cover 703;

[0085] Step c: the first translation mechanism 404 brings the second clamp 402 and the third clamp 403 closer to each other and clamps the cover 703;

[0086] Step d: The second translation mechanism moves the second clamp 402 and the third clamp 403 away from the platform 701 and separates the cover 703 from the bag 702;

[0087] Step e: the rotating mechanism 103 drives the filling head 101 to rotate along with the cantilever 102, the filling head 101 is aligned with the opening of the bag 702, and the filling head 101 injects liquid into the bag 702;

[0088] Step f, the rotating mechanism 103 drives the filling head 101 to rotate along with the cantilever 102, the filling head 101 leaves the opening of the bag 702, and the third translation mechanism drives the second clamp 402, the third clamp 403 and the cover 703 to approach the opening of the bag 702;

[0089] Step g: The second translation mechanism makes the second clamp 402 and the third clamp 403 approach the platform 701 and makes the cover 703 cover the opening of the bag 702;

[0090] Step h: the fourth translation mechanism 502 tilts the support plate 501.

[0091] Regarding the filling process, step a, step b, step c, step d, step e, step f, step g and step h are the same as Figures 11 to 18 One-to-one correspondence. The filling process can realize the automatic installation and removal of the cap 703 and the filling of the liquid into the bag 702, and can also automatically send the bag 702 out after the filling is completed, thereby improving the automation level of the bag filling machine. A higher degree of automation can reduce the operator's contact with the bag filling machine, which is conducive to the isolation of the filling environment from the external environment and the improvement of the hygiene level of the filling process.

[0092] Regarding step g, while step g is being performed, the filling head 101 may be aligned with the spray module, and the spray module may spray liquid toward the filling head 101 to clean the filling head 101 .

[0093] Regarding step h, in step h, the bag 702 slides out of the platform 701 on the inclined support plate 501, and then the bag 702 falls onto the conveyor belt. The conveyor belt runs and further sends the bag 702 out of the bag filling machine.

[0094] Fig.19 The state where the filling head 101 is docked with the cleaning pipe 301 is shown. The cleaning module can transport cleaning liquid into the filling module, so as to clean the filling module and various pipes connected to the filling module.

Claims

1. Bag filling machine, characterized in that, include: A platform that can hold bags to be filled; A filling module, the filling module comprising a filling head, a cantilever and a rotating mechanism, the filling head can inject liquid into the bag, the filling head is arranged on the cantilever, and the rotating mechanism can drive the cantilever to rotate; A spray module, wherein a spray head is provided on the spray module, and the spray head can spray liquid, and the rotating mechanism can drive the filling head to move between the bag and the spray module through the cantilever; The filling module and the spraying module are arranged on the platform; The spray module is provided with a groove, the spray head is arranged in the groove, the inner side wall of the groove can be close to the outer side of the filling head, and the spray head can extend into the filling head; A plurality of nozzles are further provided in the groove, the outlet direction of the nozzles is parallel to the depth direction of the groove, a plurality of spray holes are provided on the surface of the nozzle head, the outlet direction of the spray holes is inclined to the depth direction of the groove; a plurality of first liquid discharge channels are further provided in the groove, and the liquid in the groove can flow out of the spray module through the first liquid discharge channels; A cleaning module, wherein the cleaning module comprises a cleaning pipe, the cantilever is arranged between the cleaning pipe and the filling head, the rotating mechanism can drive the cantilever to rotate and connect the filling head with the cleaning pipe, and the cleaning pipe can pass liquid into the filling head; The cleaning module further comprises a container and a pump body, wherein the container, the pump body, the filling head and the cleaning pipe can form a closed loop, and the pump body can drive the liquid to circulate among the container, the filling head and the cleaning pipe; A conveying module, the conveying module comprising a support plate and a fourth translation mechanism, the support plate being arranged between the bag and the platform, the support plate being able to tilt relative to the platform, and the fourth translation mechanism being able to lift one side of the support plate and make the support plate tilt relative to the platform; A cover extraction module, wherein the cover extraction module comprises a first clamping mechanism and a second clamping mechanism, wherein the first clamping mechanism comprises a first clamping head, and the first clamping head can fix the bag on the platform, and the second clamping mechanism comprises a second clamping head, a third clamping head, a first translation mechanism and a second translation mechanism, wherein the first translation mechanism can drive the second clamping head and the third clamping head to approach each other, and the second translation mechanism can drive the second clamping head and the third clamping head away from the platform; The cap extraction module further includes a third translation mechanism, and the third translation mechanism can drive the second clamp and the third clamp to move away from the first clamp.

2. The bag filling machine according to claim 1, characterized in that: It also includes an isolation module, which includes a plurality of partitions, each of which surrounds the platform and is located above the platform. A sterilization lamp is also provided in the isolation module, and the sterilization lamp can illuminate the platform, the filling module and the spray module.

3. Filling method, characterized in that: The filling process is based on the bag filling machine according to claim 1, wherein the opening of the bag is provided with a detachable cover, and the filling process further comprises the following steps: Step a, the opening of the bag is clamped on the first clamp; Step b, the third translation mechanism causes the second chuck and the third chuck to translate to two sides of the cover; Step c, the first translation mechanism makes the second clamp and the third clamp approach each other and clamp the cover; Step d, the second translation mechanism moves the second clamp and the third clamp away from the platform and separates the cover from the bag; Step e, the rotating mechanism drives the filling head to rotate along with the cantilever, the filling head is aligned with the opening of the bag, and the filling head injects liquid into the bag; Step f, the rotating mechanism drives the filling head to rotate along with the cantilever, the filling head leaves the opening of the bag, and the third translation mechanism drives the second clamp, the third clamp and the cover to approach the opening of the bag; Step g, the second translation mechanism makes the second clamp and the third clamp approach the platform and makes the cover cover the opening of the bag; Step h: The fourth translation mechanism causes the support plate to tilt.

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