Filling equipment and filling method

Abstract

The invention provides filling equipment and a filling method.The filling equipment comprises a rack, a material tank, a lifting mechanism, a plurality of filling mechanisms, a conveying mechanism and an industrial personal computer, the material tank is arranged on the rack, the lifting mechanism is arranged on the rack, the plurality of filling mechanisms are all arranged on the lifting mechanism, and the conveying mechanism is arranged on the rack. The filling mechanism comprises a filling mounting seat, a filling tank body, a first filling valve, a second filling valve and a weighing sensor, the filling mounting seat is arranged on the lifting mechanism, the filling tank body is arranged on the filling mounting seat, the first filling valve is used for communicating the material tank body with the filling tank body, and the second filling valve is used for filling materials in the filling tank body into a container workpiece; the weighing sensor is arranged on the filling installation base and used for detecting the total weight of the filling tank body and materials, and the conveying mechanism conveys container workpieces in the first direction and is arranged below the filling mechanism. According to the filling equipment and the filling method, the container can be more efficiently and more accurately filled.

Description

Technical Field

[0001] The present invention relates to the technical field of filling equipment, and in particular to a filling equipment and a filling method. Background Art

[0002] A filling machine is a packaging device that can fill a liquid into a container according to a predetermined amount. Depending on the different ways of feeding containers in the filling machine, filling machines can be divided into linear filling machines and rotary filling machines. When a linear filling machine is filling, the container moves linearly from one station to another intermittently, while when a rotary filling machine is filling, the container moves rotaryly from one station to another intermittently. Among them, the linear filling machine has a wide range of technical applications and is therefore widely used in the industrial field.

[0003] For example, the patent application with Chinese patent publication number CN114132882A discloses a filling machine and a filling method, which are provided with multiple filling parts and weight sensors. The multiple filling parts can effectively improve the filling speed. The weight sensor can detect the total weight of the container. By connecting the weight sensor to the last filling part in communication, the last filling part can know whether the container has been filled. In this patent application, the weight sensor is only set at the last filling part. Although this setting method can simplify the structure of the filling machine and improve the filling speed to a certain extent, the weight measurement accuracy is low, and the material inside the container cannot be accurately measured. The weight of the material in the container cannot be guaranteed, which is a bit of a waste of time. Moreover, if there is an error in the weight, the container needs to be refilled, and the filling efficiency is not actually improved. In addition, like most filling machines, this patent application adopts the method of weighing the container from below. Since it needs to be compatible with the installation of the conveyor belt, such a weighing method actually has certain installation difficulties and is easy to affect the accuracy of the measurement.

[0004] Therefore, how to fill the container more efficiently and accurately is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] A first object of the present invention is to provide a filling device capable of filling containers more efficiently and accurately.

[0006] The second object of the present invention is to provide a filling method with high filling efficiency and high filling accuracy.

[0007] In order to achieve the above first purpose, the present invention provides the following technical solutions: A filling device is provided, comprising: frame; A material tank body, wherein the material tank body is arranged on the frame; A lifting mechanism, wherein the lifting mechanism is arranged on the frame; A filling mechanism, wherein the number of the filling mechanisms is multiple, and the multiple filling mechanisms are all arranged on the lifting mechanism; the filling mechanism comprises a filling mounting seat, a filling tank body, a first filling valve, a second filling valve and a weighing sensor, the filling mounting seat is arranged on the lifting mechanism, the filling tank body is arranged on the filling mounting seat, the first filling valve is used to connect the material tank body and the filling tank body, the second filling valve is used to fill the material of the filling tank body into the container workpiece, the weighing sensor is arranged on the filling mounting seat, and the weighing sensor is used to detect the total weight of the filling tank body and the material; A conveying mechanism, the conveying mechanism conveys the container workpiece along a first direction, the conveying mechanism is arranged below the filling mechanism; An industrial computer is electrically connected to the lifting mechanism, the filling mechanism and the conveying mechanism respectively.

[0008] Through the above scheme, during filling, the first filling valve is started to make the material in the material tank flow to each filling tank, the weighing sensor weighs the filling tank and the material, and when the weighing sensor detects that the total weight of the filling tank and the material reaches a preset value, the weighing sensor transmits the corresponding electrical signal to the industrial computer, and the industrial computer transmits the corresponding electrical signal to the first filling valve, and the first filling valve is closed. After the first filling valve is closed, the second filling valve is started to fill the material in the filling tank into the container workpiece. At this time, the real-time weight of the material in the container workpiece is equal to the preset value of the total weight of the filling tank and the material minus the real-time weight detected by the weighing sensor. When the real-time weight of the material in the container workpiece is close to the rated weight of the material to be filled in the container workpiece, the industrial computer transmits the corresponding electrical signal to the second filling valve, so that the material flow rate of the second filling valve is gradually reduced. When the real-time weight of the material in the container workpiece is equal to the rated weight of the material to be filled in the container workpiece, the industrial computer transmits the corresponding electrical signal to the second filling valve, and the second filling valve is closed to complete the filling of the container workpiece.

[0009] The present invention adopts a method of weighing the filling tank body and the material above and calculating the weight in real time to obtain the weight of the material in the container workpiece. Compared with the existing method of weighing the container by weighing from below, the installation method of the present invention is simpler, and there is no need to consider the precise coordination with the conveyor belt. The installation difficulty is relatively low. It only needs to place the weighing sensor at the bottom of the filling tank body, which is less affected by external interference. In addition, the filling is carried out in a fast-first-slow-later manner. While ensuring the filling efficiency, the filling amount of the material can be controlled more accurately.

[0010] In addition, in the existing weighing method, there is a certain time difference between the falling of the material and the sensing by the weight sensor. Therefore, when the rated weight is measured by the existing bottom weighing method, even if the valve is closed in time, a small amount of material will still fall into the container, and this filling error is difficult to avoid. In this application, when the material leaves the filling tank, the weighing sensor can obtain the total weight of the filling tank and the internal material, that is, the amount of material filled can be obtained. At this time, the valve is closed immediately, and the subsequent material will not fall again, which greatly shortens the time difference existing in the existing weighing method, greatly improves the accuracy of weighing, and greatly improves the accuracy of filling.

[0011] Optionally, the filling device further comprises an adjusting mechanism, wherein the adjusting mechanism is arranged on the lifting mechanism, and the adjusting mechanism is respectively connected to the plurality of filling mechanisms to adjust the distance between the plurality of filling mechanisms.

[0012] Optionally, the adjustment mechanism includes an adjustment support seat, an adjustment motor, an adjustment guide rail, an adjustment screw, an adjustment nut, an adjustment guide rod, an adjustment scissors frame and multiple adjustment sliding seats. The adjustment guide rail is arranged on the adjustment support seat and extends along the first direction. Multiple filling mounting seats are slidably connected to the adjustment guide rail. The adjustment support seat is connected to the lifting mechanism. The adjustment guide rod is arranged on the adjustment support seat and extends along the first direction. Multiple adjustment sliding seats are slidably connected to the adjustment guide rod. Multiple adjustment sliding seats are connected through the adjustment scissors frame. Multiple adjustment sliding seats are respectively connected to multiple filling mounting seats. The adjustment screw is arranged on the adjustment support seat. The adjustment nut is arranged on one of the adjustment sliding seats. The adjustment nut is threadedly connected to the adjustment screw, and the adjustment motor is connected to the adjustment screw.

[0013] Optionally, the adjustment mechanism includes an adjustment support seat, an adjustment motor, an adjustment guide rail and an adjustment cam rod, the adjustment guide rail is arranged on the adjustment support seat and extends along the first direction, multiple filling mounting seats are slidably connected to the adjustment guide rail, the adjustment support seat is connected to the lifting mechanism, the adjustment cam rod is arranged on the adjustment support seat and extends along the first direction, the outer wall of the adjustment cam rod is provided with multiple adjustment guide grooves, multiple adjustment guide grooves all extend along the axial spiral of the adjustment cam rod, multiple filling mounting seats are provided with filling guide columns, multiple filling guide columns are respectively and correspondingly plugged into the multiple adjustment guide grooves, and the filling guide columns can slide along the adjustment guide grooves.

[0014] Optionally, the conveying mechanism includes a conveying frame, a conveyor belt, a first guardrail, an equidistant screw and a screw motor, the conveyor belt is arranged on the conveying frame, the first guardrail and the equidistant screw are both arranged on the conveying frame, the first guardrail and the equidistant screw are respectively arranged on both sides of the conveyor belt along a second direction, the second direction is orthogonal to the first direction, the screw motor is arranged on the conveying frame, and the screw motor is connected to the equidistant screw to drive the equidistant screw to rotate.

[0015] Optionally, the conveying mechanism also includes a second guardrail and a bottle stopping assembly, the first guardrail and the second guardrail are respectively arranged on both sides of the conveyor belt along the second direction, the conveyor belt includes a first conveying section, a second conveying section and a filling conveying section, the first conveying section and the second conveying section are respectively arranged on both sides of the filling conveying section along the first direction, the equidistant screw is located in the filling conveying section, the second guardrail is located in the first conveying section and the second conveying section, and the bottle stopping assembly is arranged in the first conveying section.

[0016] Optionally, the conveying mechanism further comprises a squeeze bottle detection assembly, which is arranged at one end of the filling conveying section close to the first conveying section, and the squeeze bottle detection assembly comprises a squeeze bottle detection mounting seat, a squeeze bottle detection unit, a squeeze bottle detection shaft, a squeeze bottle detection sensing block, a squeeze bottle detection elastic member, a squeeze bottle detection connecting rod, a squeeze bottle detection supporting plate, a squeeze bottle detection connecting seat and a squeeze bottle detection guardrail, the squeeze bottle detection mounting seat is arranged on the frame, the squeeze bottle detection shaft is rotatably connected to the squeeze bottle detection mounting seat, and one end of the squeeze bottle detection shaft is connected to The squeeze bottle detection sensing block is connected to the squeeze bottle detection sensing block, the other end of the squeeze bottle detection rotating shaft is connected to one end of the squeeze bottle detection connecting rod, the other end of the squeeze bottle detection connecting rod is rotatably connected to the squeeze bottle detection supporting plate, the squeeze bottle detection connecting seat is connected to the squeeze bottle detection supporting plate, the squeeze bottle detection guardrail is arranged on the squeeze bottle detection connecting seat, the squeeze bottle detection unit is arranged on the squeeze bottle detection mounting seat, one end of the squeeze bottle detection elastic member is connected to the squeeze bottle detection mounting seat, and the other end of the squeeze bottle detection elastic member is connected to the squeeze bottle detection sensing block.

[0017] Optionally, the lifting mechanism includes a lifting motor, a lifting sprocket chain assembly, a lifting support seat, a lifting support column, a lifting connecting seat, a lifting screw and a lifting screw sleeve. The lifting support seat is arranged on the frame, the lifting support column is movably connected to the lifting support seat, the lifting connecting seat is arranged on the lifting support column, the lifting screw sleeve is embedded in the interior of the lifting support column, the lifting screw penetrates the lifting support seat and is threadedly connected to the lifting screw sleeve, the lifting motor and the lifting sprocket chain assembly are both arranged on the frame, the lifting motor is connected to the lifting sprocket chain assembly, and the lifting sprocket chain assembly is connected to the lifting screw.

[0018] Optionally, the filling equipment also includes a material receiving and bottle clamping mechanism, which includes a material receiving and bottle clamping mounting seat, a material receiving and bottle clamping cylinder, a material receiving and bottle clamping guide rod, a material receiving and bottle clamping support seat, a material receiving tray and a bottle mouth clamping block, the material receiving and bottle clamping mounting seat is connected to the lifting mechanism, the material receiving and bottle clamping guide rod is connected to the material receiving and bottle clamping mounting seat and extends along the second direction, the material receiving and bottle clamping support seat is sleeved on the material receiving and bottle clamping guide rod, the material receiving and bottle clamping cylinder is arranged on the material receiving and bottle clamping mounting seat, the material receiving and bottle clamping cylinder is connected to the material receiving and bottle clamping support seat to drive the material receiving and bottle clamping support seat to move along the second direction, and the material receiving tray and the bottle mouth clamping block are arranged on the material receiving and bottle clamping support seat at intervals along the second direction.

[0019] In order to achieve the above second purpose, the present invention provides the following technical solutions: A filling method is provided, using the above filling device, comprising the following steps: S1. The staff fills the materials into the material tank; S2, the conveyor belt conveys the container workpieces along the first direction. During the conveying process, the screw motor drives the equidistant screw to rotate. The thread grooves on the equidistant screw can separate the container workpieces and the distances between the container workpieces are equal. When a batch of container workpieces are all moved to the bottom of the filling mechanism, the conveyor belt stops conveying and the equidistant screw stops moving; S3, the industrial computer transmits the corresponding electrical signal to the adjustment mechanism according to the equidistant screws with different pitches, and the adjustment mechanism drives each filling mechanism to move simultaneously and keeps the same distance between each filling mechanism, ensuring that each filling mechanism moves to the top of each container workpiece; S4, the lifting mechanism (3) drives each filling mechanism (4) to move downward, so that the filling port of the filling tank body (42) moves to the top of the container workpiece or extends into the container workpiece; S5, start the first filling valve to make the material in the material tank flow into each filling tank, the weighing sensor weighs the filling tank and the material, and when the weighing sensor detects that the total weight of the filling tank and the material reaches the preset value G, the weighing sensor transmits the corresponding electrical signal to the industrial computer, and the industrial computer transmits the corresponding electrical signal to the first filling valve, and the first filling valve is closed; S6. After the first filling valve is closed, the second filling valve is started to fill the material in the filling tank into the container workpiece. At this time, the real-time weight of the material in the container workpiece is G1, and the real-time weight detected by the weighing sensor is G2, then G1=G-G2. In addition, the rated weight of the material to be filled in the container workpiece is G3. When G1 is close to G3, the industrial computer transmits the corresponding electrical signal to the second filling valve, so that the material flow rate of the second filling valve is gradually reduced. When G1=G3, the industrial computer transmits the corresponding electrical signal to the second filling valve, and the second filling valve is closed, completing the filling of the container workpiece. S7. In step S4, if the filling opening of the filling tank body (42) has only moved to the top of the container workpiece, the lifting mechanism (3) will no longer drive each filling mechanism (4) to move upward; if the filling opening of the filling tank body (42) has extended into the container workpiece, the lifting mechanism (3) will drive each filling mechanism (4) to move upward so that the filling opening of the filling tank body (42) is away from the container workpiece; S8. The conveyor belt continues to convey the container workpiece along the first direction. During the conveying process, the screw motor continues to drive the equidistant screw to rotate, and the conveyor belt and the equidistant screw cooperate to convey the container workpiece to the next process.

[0020] Compared with the prior art, the solution of the present invention has the following advantages: 1. In the filling equipment of the present invention, the weight of the material in the container workpiece is obtained by weighing the filling tank and the material above and calculating the weight in real time. Compared with the existing method of weighing the container by weighing from below, the installation method of the present invention is simpler, and there is no need to consider the precise coordination with the conveyor belt. The installation difficulty is relatively low. It only needs to place the weighing sensor at the bottom of the filling tank, which is less affected by external interference. In addition, the filling is carried out in a fast-first-then-slow manner. While ensuring the filling efficiency, the filling amount of the material can be controlled more accurately. In addition, in the existing weighing method, since there is a certain time difference between the falling of the material and the sensing by the weight sensor, when the rated weight is obtained by the existing method of weighing from below, even if the valve is closed in time, a small amount of material will still fall into the container, and this filling error is difficult to avoid. In the present application, when the material leaves the filling tank, the weighing sensor can obtain the total weight of the filling tank and the internal material, that is, the amount of filled material can be obtained. At this time, the valve is immediately closed and the subsequent material will not fall, which greatly shortens the time difference in the existing weighing method, greatly improves the accuracy of weighing, and greatly improves the accuracy of filling.

[0021] 2. In the filling method of the present invention, the above-mentioned filling equipment is used to fill the container more efficiently and accurately.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 It is a structural schematic diagram of a filling device in an embodiment of the present invention; Figure 2 A front view of a filling device in one embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of a filling device in one embodiment of the present invention after removing the frame and the material tank body; Figure 4 It is a structural schematic diagram of a lifting mechanism and an adjusting mechanism in an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a lifting mechanism and an adjusting mechanism in another embodiment of the present invention; Figure 6 It is a structural schematic diagram of a conveying mechanism in an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a bottle stopping assembly and a bottle squeezing detection assembly in one embodiment of the present invention; Figure 8 It is a structural schematic diagram of a filling mechanism in an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a material receiving and bottle clamping mechanism in an embodiment of the present invention.

[0024] 1. Frame; 2. Material tank; 3. Lifting mechanism; 31. Lifting motor; 32. Lifting sprocket chain assembly; 33. Lifting support seat; 34. Lifting support column; 35. Lifting connection seat; 4. Filling mechanism; 41. Filling mounting seat; 42. Filling tank; 43. First filling valve; 44. Second filling valve; 45. Weighing sensor; 46. Weighing mounting plate; 47. Weighing support plate; 48. Weighing support column; 49. Filling limit column; 410. Feed pipe; 411. Filling guide column; 5. Conveying mechanism; 51. Conveying frame; 52. Conveyor belt; 53. First guardrail; 54. Equidistant screw; 55. Screw motor; 56. Second guardrail; 57. Bottle stop assembly; 571. Bottle stop cylinder; 572. Bottle stop star wheel; 58. Bottle squeeze detection assembly; 581. Bottle squeeze detection 1. Measuring mounting seat; 582. Squeeze bottle detection unit; 583. Squeeze bottle detection shaft; 584. Squeeze bottle detection sensing block; 585. Squeeze bottle detection elastic member; 586. Squeeze bottle detection connecting rod; 587. Squeeze bottle detection support plate; 588. Squeeze bottle detection connecting seat; 589. Squeeze bottle detection guardrail; 59. Conveying and receiving material tray; 6. Adjusting mechanism; 61. Adjusting support seat; 62. Adjusting motor; 63. Adjusting guide rail; 64. Adjusting screw rod; 65. Adjusting nut; 66. Adjusting guide rod; 67. Adjusting scissors frame; 68. Adjusting sliding seat; 69. Adjusting cam rod; 610. Adjusting guide groove; 7. Material receiving and bottle clamping mechanism; 71. Material receiving and bottle clamping mounting seat; 72. Material receiving and bottle clamping cylinder; 73. Material receiving and bottle clamping guide rod; 74. Material receiving and bottle clamping support seat; 75. Material receiving tray; 76. Bottle mouth clamping block; 8. Packaging bottle. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0026] like Figures 1 to 9 As shown, the present invention provides a filling device, which is mainly used for filling materials into container workpieces. In this embodiment, a packaging bottle 8 is described as a container workpiece. In some other embodiments, the container workpiece can also be other bottle bodies, box bodies, etc. for containing materials.

[0027] For the convenience of explanation, in this embodiment, Figure 1 As shown, the first direction is the left-right direction, and the second direction is the front-back direction.

[0028] Specifically, Figure 1 and Figure 2As shown, the filling equipment of the present invention includes a frame 1, a material tank body 2, a lifting mechanism 3, a filling mechanism 4, a conveying mechanism 5 and an industrial computer, wherein the industrial computer is electrically connected to the lifting mechanism 3, the filling mechanism 4 and the conveying mechanism 5 respectively, and the material tank body 2 is arranged on the frame 1, for example, installed in the upper area of ​​the frame 1 by bolt installation.

[0029] Furthermore, the lifting mechanism 3 is arranged on the frame 1, and the number of the filling mechanisms 4 is multiple, and the multiple filling mechanisms 4 are all arranged on the lifting mechanism 3. The lifting mechanism 3 can drive the multiple filling mechanisms 4 to move up and down at the same time, and the working efficiency is higher.

[0030] Furthermore, if Figure 8 As shown, the filling mechanism 4 includes a filling mounting seat 41, a filling tank body 42, a first filling valve 43, a second filling valve 44 and a weighing sensor 45. The filling mounting seat 41 is arranged on the lifting mechanism 3, the filling tank body 42 is arranged on the filling mounting seat 41, the first filling valve 43 is used to connect the material tank body 2 and the filling tank body 42, the second filling valve 44 is used to fill the material of the filling tank body 42 into the container workpiece, and the weighing sensor 45 is arranged on the filling mounting seat 41, and the weighing sensor 45 is used to detect the total weight of the filling tank body 42 and the material.

[0031] More specifically, the conveying mechanism 5 conveys the container workpiece along a first direction, that is, the conveying mechanism 5 conveys the packaging bottle 8 from left to right, and the conveying mechanism 5 is arranged below the filling mechanism 4 .

[0032] During filling, the first filling valve 43 is activated to allow the material in the material tank 2 to flow into each filling tank 42. The weighing sensor 45 weighs the filling tank 42 and the material. When the weighing sensor 45 detects that the total weight of the filling tank 42 and the material reaches a preset value, the weighing sensor 45 transmits a corresponding electrical signal to the industrial computer, and the industrial computer transmits a corresponding electrical signal to the first filling valve 43, and the first filling valve 43 is closed. After the first filling valve 43 is closed, the second filling valve 44 is activated to fill the material in the filling tank 42 into the container workpiece. At this time, the container workpiece is filled with The real-time weight of the material is equal to the preset value of the total weight of the filling tank 42 and the material minus the real-time weight detected by the weighing sensor 45. When the real-time weight of the material in the container workpiece is close to the rated weight of the material to be filled in the container workpiece, the industrial computer transmits the corresponding electrical signal to the second filling valve 44, so that the material flow rate of the second filling valve 44 gradually decreases. When the real-time weight of the material in the container workpiece is equal to the rated weight of the material to be filled in the container workpiece, the industrial computer transmits the corresponding electrical signal to the second filling valve 44, and the second filling valve 44 is closed to complete the filling of the container workpiece.

[0033] The filling equipment provided in this embodiment adopts a method of weighing the filling tank body 42 and the material above, and calculating the weight in real time to obtain the weight of the material in the container workpiece. Compared with the existing method of weighing the container by weighing from below, the installation method of the filling equipment provided in this embodiment is simpler, and there is no need to consider the precise coordination with the conveyor belt. The installation difficulty is relatively low. It only needs to place the weighing sensor 45 at the bottom of the filling tank body 42, which is less affected by external interference. In addition, the filling is performed in a fast-first-slow-later manner. While ensuring the filling efficiency, the filling amount of the material can be controlled more accurately.

[0034] In addition, in the existing weighing method, there is a certain time difference between the falling of the material and the sensing by the weight sensor. Therefore, when the rated weight is measured by the existing bottom weighing method, even if the valve is closed in time, a small amount of material will still fall into the container, and this filling error is difficult to avoid. In this embodiment, when the material leaves the filling tank body 42, the weighing sensor 45 can obtain the total weight of the filling tank body 42 and the internal material, that is, the amount of filled material can be obtained. At this time, the valve is immediately closed, and the subsequent material will not fall again, which greatly shortens the time difference existing in the existing weighing method, greatly improves the accuracy of weighing, and greatly improves the accuracy of filling.

[0035] In some embodiments, Figure 8 As shown, the filling mechanism 4 also includes a weighing mounting plate 46, a weighing support plate 47 and a weighing support column 48. The weighing mounting plate 46 is fixedly connected to the filling mounting seat 41, one end of the weighing support plate 47 is connected to the weighing mounting plate 46, and the other end of the weighing support plate 47 is connected to the weighing support column 48. The weighing sensor 45 is installed on the weighing mounting plate 46, and the front end of the weighing sensor 45 abuts against the weighing support column 48, with good installation stability. The filling tank body 42 is placed on top of the weighing sensor 45, and a plurality of filling limit columns 49 are provided at the bottom of the filling tank body 42. The plurality of filling limit columns 49 are respectively located on the left and right sides of the weighing sensor 45, which can prevent the filling tank body 42 from shaking. A reinforcing rib is also provided between the bottom of the weighing mounting plate 46 and the filling mounting seat 41, which can further improve the supporting effect on the filling tank body 42.

[0036] In some embodiments, Figure 8 As shown, the filling mechanism 4 also includes a feed pipe 410, one end of which is connected to the material tank body 2, and the other end of the feed pipe 410 extends into the interior of the filling tank body 42 and is connected to the filling tank body 42. The first filling valve 43 is installed on the feed pipe 410, and the feed pipe 410 is fixedly connected to the filling mounting seat 41. In addition to conveying materials, the feed pipe 410 also fixes the filling tank body 42 to prevent the filling tank body 42 from shaking, thereby improving the detection accuracy of the weighing sensor 45.

[0037] In some embodiments, the first filling valve 43 and the second filling valve 44 are both filling valves controlled by a servo motor or a servo cylinder, which can achieve stepless adjustment, thereby accurately controlling the flow rate of the material, so that filling can be performed in a fast-then-slow manner with high filling accuracy.

[0038] In some embodiments, the filling equipment also includes an adjusting mechanism 6, which is arranged on the lifting mechanism 3. The adjusting mechanism 6 is respectively connected to multiple filling mechanisms 4 to adjust the distance between the multiple filling mechanisms 4. In the actual filling process, it is usually necessary to fill packaging bottles 8 of different specifications. It can be understood that when filling packaging bottles 8 of different specifications and different batches, the distance between the bottle mouths of two adjacent packaging bottles 8 is different. By setting the adjusting mechanism 6, the distance between the filling mechanisms 4 can be adjusted, so that it can adapt to packaging bottles 8 of different specifications, and the adaptability is better.

[0039] In a specific embodiment, Figure 4 As shown, the adjustment mechanism 6 includes an adjustment support seat 61, an adjustment motor 62, an adjustment guide rail 63, an adjustment screw rod 64, an adjustment nut 65, an adjustment guide rod 66, an adjustment scissor frame 67 and a plurality of adjustment sliding seats 68. The adjustment guide rail 63 is arranged on the adjustment support seat 61 and extends along the first direction. A plurality of filling mounting seats 41 are all slidably connected to the adjustment guide rail 63. The adjustment support seat 61 is connected to the lifting mechanism 3. The adjustment guide rod 66 is arranged on the adjustment support seat 61 and extends along the first direction. A plurality of adjustment sliding seats 68 are all slidably connected to the adjustment guide rod 66. A plurality of adjustment sliding seats 68 are connected through the adjustment scissor frame 67. A plurality of adjustment sliding seats 68 are respectively connected to a plurality of filling mounting seats 41. The adjustment screw rod 64 is arranged on the adjustment support seat 61. The adjustment nut 65 is arranged on one of the adjustment sliding seats 68. The adjustment nut 65 is threadedly connected to the adjustment screw rod 64. The energy-saving motor 62 is connected to the adjusting screw rod 64. Specifically, the adjusting guide rod 66 extends in the left-right direction, and the adjusting nut 65 is arranged on the leftmost adjusting sliding seat 68. When it is necessary to adjust the distance between the filling mechanisms 4, the adjusting motor 62 is started and drives the adjusting screw rod 64 to rotate, and the adjusting screw rod 64 drives the leftmost adjusting sliding seat 68 to move. When the leftmost adjusting sliding seat 68 slides on the adjusting guide rod 66, the remaining adjusting sliding seats 68 can be driven to move by adjusting the scissors frame 67. It can be understood that if the distance between the filling mechanisms 4 is to be increased, the remaining adjusting sliding seats 68 can be driven to move to the right, and if the distance between the filling mechanisms 4 is to be reduced, the remaining adjusting sliding seats 68 can be driven to move to the left. It is very convenient to adjust, and the synchronous adjustment of all filling mechanisms 4 can be realized. Compared with the existing manual adjustment method, the adjustment efficiency is greatly improved.

[0040] In a specific embodiment, Figure 5 As shown, the adjustment mechanism 6 includes an adjustment support seat 61, an adjustment motor 62, an adjustment guide rail 63 and an adjustment cam rod 69. The adjustment guide rail 63 is arranged on the adjustment support seat 61 and extends along the first direction. Multiple filling mounting seats 41 are slidably connected to the adjustment guide rail 63. The adjustment support seat 61 is connected to the lifting mechanism 3. The adjustment cam rod 69 is arranged on the adjustment support seat 61 and extends along the first direction. The outer wall of the adjustment cam rod 69 is provided with a plurality of adjustment guide grooves 610. The plurality of adjustment guide grooves 610 are all extended along the axial spiral of the adjustment cam rod 69. The plurality of filling mounting seats 41 are all provided with filling guide columns 411. The plurality of filling guide columns 411 are respectively and correspondingly plugged into the plurality of adjustment guide grooves 610. The filling guide columns 411 can slide along the adjustment guide grooves 610. Specifically, the adjustment cam rod 69 extends in the left-right direction. When it is necessary to adjust the distance between the filling mechanisms 4, the adjusting motor 62 is started and drives the adjusting cam rod 69 to rotate. The outer wall of the adjusting cam rod 69 is provided with a plurality of spirally extending adjusting guide grooves 610, and a plurality of filling mounting seats 41 are provided with filling guide columns 411. The plurality of filling guide columns 411 are respectively and correspondingly plugged into the plurality of adjusting guide grooves 610. It can be understood that when the adjusting cam rod 69 rotates, the filling guide columns 411 will move along the adjusting guide grooves 610, that is, the filling mounting seat 41 will move on the adjusting guide rail 63, thereby realizing the adjustment function. By driving the adjusting cam rod 69 to rotate, all the filling mechanisms 4 can be driven to move together, which is very convenient to adjust, and the synchronous adjustment of all the filling mechanisms 4 can be realized. Compared with the existing manual adjustment method, the adjustment efficiency is greatly improved.

[0041] In some embodiments, Figure 6 As shown, the conveying mechanism 5 includes a conveying frame 51, a conveyor belt 52, a first guardrail 53, an equidistant screw 54 and a screw motor 55. The conveyor belt 52 is arranged on the conveying frame 51, the first guardrail 53 and the equidistant screw 54 are both arranged on the conveying frame 51, the first guardrail 53 and the equidistant screw 54 are respectively arranged on both sides of the conveyor belt 52 along a second direction, and the second direction is orthogonal to the first direction. The screw motor 55 is arranged on the conveying frame 51, and the screw motor 55 is connected to the equidistant screw 54 to drive the equidistant screw 54 to rotate.

[0042] Specifically, the conveyor belt 52 conveys the packaging bottles 8 from left to right. During the conveying process, the screw motor 55 drives the equidistant screw 54 to rotate. The threaded grooves on the equidistant screw 54 can separate each packaging bottle 8 and the distance between each packaging bottle 8 is equal. When a batch of packaging bottles 8 are all moved to the bottom of the filling mechanism 4, the conveyor belt 52 stops conveying and the equidistant screw 54 stops moving. By setting the equidistant screw 54, it can be ensured that the distance between each packaging bottle 8 is equal. The equidistant screw 54 cooperates with the adjustment mechanism 6 to ensure that each filling mechanism 4 is accurately moved to the top of each packaging bottle 8 to avoid misalignment and achieve higher accuracy.

[0043] In some embodiments, the conveying mechanism 5 further includes a conveying shaft, and the equidistant screw 54 is detachably sleeved on the conveying shaft, for example, by being installed on the conveying shaft through pins or bolts, so as to prevent the equidistant screw 54 from rotating relative to the conveying shaft, and the screw motor 55 drives the conveying shaft to rotate, thereby driving the equidistant screw 54 to rotate. In addition, when conveying packaging bottles 8 of different specifications, the distances between the packaging bottles 8 are different, and the equidistant screws 54 with different pitches can be replaced to adapt to packaging bottles 8 of different specifications, so as to have better adaptability.

[0044] In some embodiments, Figure 6 and Figure 7 As shown, the conveying mechanism 5 also includes a second guardrail 56 and a bottle stopping assembly 57. The first guardrail 53 and the second guardrail 56 are respectively arranged on both sides of the conveyor belt 52 along the second direction. The conveyor belt 52 includes a first conveying section, a second conveying section and a filling conveying section. The first conveying section and the second conveying section are respectively arranged on both sides of the filling conveying section along the first direction. The equidistant screw 54 is located in the filling conveying section, the second guardrail 56 is located in the first conveying section and the second conveying section, and the bottle stopping assembly 57 is arranged in the first conveying section. Specifically, in an area where there is no equidistant screw 54, by setting the second guardrail 56, it is possible to prevent the packaging bottle 8 from falling, thereby improving safety.

[0045] Furthermore, if Figure 6 and Figure 7 As shown, the bottle stopping assembly 57 includes a bottle stopping cylinder 571 and a bottle stopping star wheel 572. The bottle stopping cylinder 571 is arranged on the conveying frame 51, and the bottle stopping cylinder 571 is connected to the bottle stopping star wheel 572 to drive the bottle stopping star wheel 572 to move up and down. The outer peripheral wall of the bottle stopping star wheel 572 is provided with an arc groove adapted to the outer contour of the packaging bottle 8. When the packaging bottle 8 passes through the bottle stopping assembly 57 in sequence, the bottle stopping cylinder 571 drives the bottle stopping star wheel 572 to move downward, and uses the arc groove to drive the packaging bottle 8 to rotate itself, so that the packaging bottle 8 can maintain the same posture and enter the filling and conveying section, thereby improving the accuracy of subsequent filling. After adjusting the posture of a packaging bottle 8, the bottle stopping cylinder 571 drives the bottle stopping star wheel 572 to move upward, and the conveyor belt 52 continues to convey the packaging bottle 8, which is more efficient.

[0046] In some embodiments, Figure 6 and Figure 7 As shown, the conveying mechanism 5 also includes a squeeze bottle detection assembly 58, which is arranged at one end of the filling conveying section close to the first conveying section. The squeeze bottle detection assembly 58 includes a squeeze bottle detection mounting seat 581, a squeeze bottle detection unit 582, a squeeze bottle detection shaft 583, a squeeze bottle detection sensing block 584, a squeeze bottle detection elastic member 585, a squeeze bottle detection connecting rod 586, a squeeze bottle detection supporting plate 587, a squeeze bottle detection connecting seat 588 and a squeeze bottle detection guardrail 589. The squeeze bottle detection mounting seat 581 is arranged on the frame 1, and the squeeze bottle detection shaft 583 is rotatably connected to the squeeze bottle detection mounting seat 581. One end of the squeeze bottle detection shaft 583 is connected to the squeeze bottle detection sensing block 584, the other end of the squeeze bottle detection shaft 583 is connected to one end of the squeeze bottle detection connecting rod 586, the other end of the squeeze bottle detection connecting rod 586 is rotatably connected to the squeeze bottle detection support plate 587, the squeeze bottle detection connecting seat 588 is connected to the squeeze bottle detection support plate 587, the squeeze bottle detection guardrail 589 is arranged on the squeeze bottle detection connecting seat 588, the squeeze bottle detection unit 582 is arranged on the squeeze bottle detection mounting seat 581, one end of the squeeze bottle detection elastic member 585 is connected to the squeeze bottle detection mounting seat 581, and the other end of the squeeze bottle detection elastic member 585 is connected to the squeeze bottle detection sensing block 584.

[0047] Specifically, when the conveyor belt 52 conveys the packaging bottle 8 and just enters the filling and conveying section, the non-threaded part of the equidistant screw 54 may squeeze the packaging bottle 8, making it impossible for the packaging bottle 8 to enter the threaded part of the equidistant screw 54. Therefore, a squeeze bottle detection component 58 is provided to detect this situation. Under normal circumstances, the squeeze bottle detection sensing block 584 can trigger the squeeze bottle detection unit 582. When a squeeze bottle situation occurs, the non-threaded part of the equidistant screw 54 will push the packaging bottle 8 backward, and the packaging bottle 8 will push the squeeze bottle detection guardrail 589 backward. The squeeze bottle detection guardrail 589 drives the squeeze bottle detection connecting seat 588 to move successively, and drives the squeeze bottle detection connecting rod 586 to rotate through the squeeze bottle detection support plate 587, thereby driving the squeeze bottle detection rotating shaft 583 to rotate, and then driving the squeeze bottle detection sensing block 584 to rotate and leave the sensing range of the squeeze bottle detection unit 582. The squeeze bottle detection unit 582 will transmit the corresponding electrical signal to the industrial control computer, so that the staff can know the occurrence of the squeeze bottle situation and deal with it in time, which is safer.

[0048] In some embodiments, the squeeze bottle detection unit 582 is a proximity switch.

[0049] In some embodiments, Figure 4 and Figure 5As shown, the lifting mechanism 3 includes a lifting motor 31, a lifting sprocket chain assembly 32, a lifting support seat 33, a lifting support column 34, a lifting connecting seat 35, a lifting screw and a lifting screw sleeve. The lifting support seat 33 is arranged on the frame 1, the lifting support column 34 is movably connected to the lifting support seat 33, the lifting connecting seat 35 is arranged on the lifting support column 34, the adjusting support seat 61 is connected to the lifting connecting seat 35, the lifting screw sleeve is embedded in the interior of the lifting support column 34, the lifting screw penetrates the lifting support seat 33 and is threadedly connected to the lifting screw sleeve, the lifting motor 31 and the lifting sprocket chain assembly 32 are both arranged on the frame 1, the lifting motor 31 is connected to the lifting sprocket chain assembly 32, and the lifting sprocket chain assembly 32 is connected to the lifting screw. Specifically, lifting and lowering are achieved by connecting the screw and the screw sleeve, and the lifting support seat 33 is used for support, so that the lifting process is more stable.

[0050] In some other embodiments, the lifting mechanism may also be a mechanism with lifting function such as a cylinder assembly, an electric push rod assembly, and a worm gear lifting assembly, which can also play the role of lifting.

[0051] In some embodiments, Fig. 9 As shown, the filling equipment also includes a material receiving and bottle clamping mechanism 7, which includes a material receiving and bottle clamping mounting seat 71, a material receiving and bottle clamping cylinder 72, a material receiving and bottle clamping guide rod 73, a material receiving and bottle clamping support seat 74, a material receiving tray 75 and a bottle mouth clamping block 76. The material receiving and bottle clamping mounting seat 71 is connected to the lifting mechanism 3, specifically, the material receiving and bottle clamping mounting seat 71 is connected to the lifting connecting seat 35, the material receiving and bottle clamping guide rod 73 is connected to the material receiving and bottle clamping mounting seat 71 and extends along the second direction, the material receiving and bottle clamping support seat 74 is sleeved on the material receiving and bottle clamping guide rod 73, the material receiving and bottle clamping cylinder 72 is provided on the material receiving and bottle clamping mounting seat 71, and the material receiving and bottle clamping cylinder 72 is connected to the material receiving and bottle clamping support seat 74 to drive the material receiving and bottle clamping support seat 74 to move along the second direction, and the material receiving tray 75 and the bottle mouth clamping block 76 are arranged on the material receiving and bottle clamping support seat 74 at intervals along the second direction.

[0052] Specifically, the bottle mouth clamp block 76 is provided with a V-shaped groove adapted to the bottle mouth of the packaging bottle 8. During filling, the material receiving and bottle clamping cylinder 72 drives the material receiving and bottle clamping support seat 74 to move backward, thereby driving the material receiving plate 75 and the bottle mouth clamp block 76 to move backward. The bottle mouth clamp block 76 clamps the bottle mouth of the packaging bottle 8, and then filling is carried out to prevent the packaging bottle 8 from shaking, thereby improving the filling accuracy. After filling is completed, the lifting mechanism 3 will drive the filling mechanism 4 to move upward, and the second filling valve 44 will be opened. There will be materials remaining at the filling port, and these materials may fall. When the filling port of the second filling valve 44 leaves the packaging bottle 8, the material receiving bottle clamping cylinder 72 drives the material receiving bottle clamping support seat 74 to move forward, thereby driving the material receiving tray 75 and the bottle mouth clamping block 76 to move forward. The bottle mouth clamping block 76 leaves the bottle mouth of the packaging bottle 8, and the material receiving tray 75 moves to the bottom of the filling port of the second filling valve 44, so as to contain the fallen materials and prevent the materials from contaminating the conveyor belt 52.

[0053] In some embodiments, Figure 6 and Figure 7 As shown, the conveying mechanism 5 also includes a conveying receiving tray 59, which is arranged below the conveyor belt 52 and can hold fallen materials to prevent the materials from polluting the working environment.

[0054] In some embodiments, the conveying mechanism 5 also includes an incoming material detection unit and a feeding detection unit. The incoming material detection unit is arranged on the conveying frame 51 and is located in the first conveying section. The feeding detection unit is arranged on the conveying frame 51 and is located in the second conveying section, and is used to detect whether there are packaging bottles 8 on the conveyor belt 52.

[0055] An embodiment of the present invention further provides a filling method, which uses the above-mentioned filling device to fill the container more efficiently and accurately.

[0056] A filling method provided by an embodiment of the present invention comprises the following steps: S1, staff fills materials into material tank 2; S2, the conveyor belt 52 conveys the container workpieces along the first direction, that is, conveys the packaging bottles 8 from left to right. During the conveying process, the screw motor 55 drives the equidistant screw 54 to rotate. The thread grooves on the equidistant screw 54 can separate the container workpieces and the distances between the container workpieces are equal. When a batch of container workpieces are all moved to the bottom of the filling mechanism 4, the conveyor belt 52 stops conveying and the equidistant screw 54 stops moving. S3, the industrial computer transmits the corresponding electrical signal to the adjusting mechanism 6 according to the equidistant screws 54 with different pitches, and the adjusting mechanism 6 drives each filling mechanism 4 to move simultaneously and keeps the same distance between each filling mechanism 4, ensuring that each filling mechanism 4 moves to the top of each container workpiece; S4, the lifting mechanism 3 drives each filling mechanism 4 to move downward, so that the filling port of the filling tank body 42 moves to the top of the container workpiece or extends into the container workpiece; specifically, in some cases, the filling port only needs to be moved to the top of the container workpiece for filling, and in some cases, the filling port needs to be extended into the interior of the container workpiece for filling, which can be selected according to actual needs; S5, start the first filling valve 43, so that the material in the material tank 2 flows into each filling tank 42, and the weighing sensor 45 weighs the filling tank 42 and the material. When the weighing sensor 45 detects that the total weight of the filling tank 42 and the material reaches the preset value G, the weighing sensor 45 transmits the corresponding electrical signal to the industrial computer, and the industrial computer transmits the corresponding electrical signal to the first filling valve 43, and the first filling valve 43 is closed; S6. After the first filling valve 43 is closed, the second filling valve 44 is started to fill the material in the filling tank 42 into the container workpiece. At this time, the real-time weight of the material in the container workpiece is G1, and the real-time weight detected by the weighing sensor 45 is G2, then G1=G-G2. In addition, the rated weight of the material to be filled in the container workpiece is G3. When G1 is close to G3, the industrial computer transmits the corresponding electrical signal to the second filling valve 44, so that the material flow rate of the second filling valve 44 is gradually reduced. When G1=G3, the industrial computer transmits the corresponding electrical signal to the second filling valve 44, and the second filling valve 44 is closed, completing the filling of the container workpiece. S7. In step S4, if the filling port of the filling tank body 42 only moves to the top of the container workpiece, the lifting mechanism 3 no longer drives each filling mechanism 4 to move upward. If the filling port of the filling tank body 42 has extended into the container workpiece, the lifting mechanism 3 drives each filling mechanism 4 to move upward so that the filling port of the filling tank body 42 leaves the container workpiece. It can be understood that in step S4, if the filling port of the filling tank body 42 only moves to the top of the container workpiece, it will not affect the conveying of the container workpiece by the conveyor belt 52, and the lifting mechanism 3 does not need to drive each filling mechanism 4 to move upward. S8, the conveyor belt 52 continues to convey the container workpiece along the first direction. During the conveying process, the screw motor 55 continues to drive the equidistant screw 54 to rotate, and the conveyor belt 52 and the equidistant screw 54 cooperate to convey the container workpiece to the next process.

[0057] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A filling device, characterized in that: include: Rack(1); A material tank body (2), wherein the material tank body (2) is arranged on the frame (1); A lifting mechanism (3), wherein the lifting mechanism (3) is arranged on the frame (1); A filling mechanism (4), wherein the number of the filling mechanisms (4) is plural, and the plural filling mechanisms (4) are all arranged on the lifting mechanism (3); the filling mechanism (4) comprises a filling mounting seat (41), a filling tank body (42), a first filling valve (43), a second filling valve (44) and a weighing sensor (45); the filling mounting seat (41) is arranged on the lifting mechanism (3), the filling tank body (42) is arranged on the filling mounting seat (41), the first filling valve (43) is used to connect the material tank body (2) and the filling tank body (42), the second filling valve (44) is used to fill the material in the filling tank body (42) into the container workpiece, and the weighing sensor (45) is arranged on the filling mounting seat (41), and the weighing sensor (45) is used to detect the total weight of the filling tank body (42) and the material; A conveying mechanism (5), the conveying mechanism (5) conveying the container workpiece along a first direction, the conveying mechanism (5) being arranged below the filling mechanism (4); An industrial computer, the industrial computer being electrically connected to the lifting mechanism (3), the filling mechanism (4) and the conveying mechanism (5) respectively.

2. The filling device according to claim 1, characterized in that: The filling device further comprises an adjusting mechanism (6), wherein the adjusting mechanism (6) is arranged on the lifting mechanism (3), and the adjusting mechanism (6) is respectively connected to the plurality of filling mechanisms (4) so ​​as to adjust the distance between the plurality of filling mechanisms (4).

3. The filling device according to claim 2, characterized in that: The adjusting mechanism (6) comprises an adjusting support seat (61), an adjusting motor (62), an adjusting guide rail (63), an adjusting screw rod (64), an adjusting nut (65), an adjusting guide rod (66), an adjusting scissor frame (67) and a plurality of adjusting sliding seats (68); the adjusting guide rail (63) is arranged on the adjusting support seat (61) and extends along the first direction; the plurality of filling mounting seats (41) are all slidably connected to the adjusting guide rail (63); the adjusting support seat (61) is connected to the lifting mechanism (3); the adjusting guide rod (66) is arranged on the adjusting support seat (61) and extends along the first direction; The adjusting sliding seats (68) extend in one direction, and the plurality of adjusting sliding seats (68) are all slidably connected to the adjusting guide rod (66). The plurality of adjusting sliding seats (68) are connected to each other via the adjusting scissor frame (67). The plurality of adjusting sliding seats (68) are respectively connected to the plurality of filling mounting seats (41). The adjusting screw rod (64) is arranged on the adjusting support seat (61). The adjusting nut (65) is arranged on one of the adjusting sliding seats (68). The adjusting nut (65) is threadedly connected to the adjusting screw rod (64). The adjusting motor (62) is connected to the adjusting screw rod (64).

4. The filling device according to claim 2, characterized in that: The adjustment mechanism (6) comprises an adjustment support seat (61), an adjustment motor (62), an adjustment guide rail (63) and an adjustment cam rod (69); the adjustment guide rail (63) is arranged on the adjustment support seat (61) and extends along the first direction; a plurality of the filling mounting seats (41) are slidably connected to the adjustment guide rail (63); the adjustment support seat (61) is connected to the lifting mechanism (3); the adjustment cam rod (69) is arranged on the adjustment support seat (61) and extends along the first direction; an outer wall of the adjustment cam rod (69) is provided with a plurality of adjustment guide grooves (610); the plurality of adjustment guide grooves (610) are spirally extended along the axial direction of the adjustment cam rod (69); a plurality of the filling mounting seats (41) are provided with filling guide columns (411); the plurality of the filling guide columns (411) are respectively and correspondingly plugged into the plurality of the adjustment guide grooves (610); the filling guide columns (411) can slide along the adjustment guide grooves (610).

5. The filling device according to claim 2, characterized in that: The conveying mechanism (5) comprises a conveying frame (51), a conveying belt (52), a first guardrail (53), an equidistant screw (54) and a screw motor (55); the conveying belt (52) is arranged on the conveying frame (51); the first guardrail (53) and the equidistant screw (54) are both arranged on the conveying frame (51); the first guardrail (53) and the equidistant screw (54) are respectively arranged on both sides of the conveying belt (52) along a second direction, the second direction being orthogonal to the first direction; the screw motor (55) is arranged on the conveying frame (51); the screw motor (55) is connected to the equidistant screw (54) to drive the equidistant screw (54) to rotate.

6. The filling device according to claim 5, characterized in that: The conveying mechanism (5) further comprises a second guardrail (56) and a bottle stopping assembly (57); the first guardrail (53) and the second guardrail (56) are respectively arranged on both sides of the conveying belt (52) along the second direction; the conveying belt (52) comprises a first conveying section, a second conveying section and a filling conveying section; the first conveying section and the second conveying section are respectively arranged on both sides of the filling conveying section along the first direction; the equidistant screw (54) is located in the filling conveying section; the second guardrail (56) is located in the first conveying section and the second conveying section; and the bottle stopping assembly (57) is arranged in the first conveying section.

7. The filling device according to claim 6, characterized in that: The conveying mechanism (5) further comprises a squeeze bottle detection assembly (58), the squeeze bottle detection assembly (58) being arranged at one end of the filling conveying section close to the first conveying section, the squeeze bottle detection assembly (58) comprising a squeeze bottle detection mounting seat (581), a squeeze bottle detection unit (582), a squeeze bottle detection rotating shaft (583), a squeeze bottle detection sensing block (584), a squeeze bottle detection elastic member (585), a squeeze bottle detection connecting rod (586), a squeeze bottle detection supporting plate (587), a squeeze bottle detection connecting seat (588) and a squeeze bottle detection guardrail (589), the squeeze bottle detection mounting seat (581) being arranged on the frame (1), the squeeze bottle detection rotating shaft (583) being rotatably connected to the squeeze bottle detection mounting seat (581), and one end of the squeeze bottle detection rotating shaft (583) The squeeze bottle detection shaft (583) is connected to one end of the squeeze bottle detection sensing block (584), the other end of the squeeze bottle detection rotating shaft (583) is connected to one end of the squeeze bottle detection connecting rod (586), the other end of the squeeze bottle detection connecting rod (586) is rotatably connected to the squeeze bottle detection supporting plate (587), the squeeze bottle detection connecting seat (588) is connected to the squeeze bottle detection supporting plate (587), the squeeze bottle detection guardrail (589) is arranged on the squeeze bottle detection connecting seat (588), the squeeze bottle detection unit (582) is arranged on the squeeze bottle detection mounting seat (581), one end of the squeeze bottle detection elastic member (585) is connected to the squeeze bottle detection mounting seat (581), and the other end of the squeeze bottle detection elastic member (585) is connected to the squeeze bottle detection sensing block (584).

8. The filling device according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting motor (31), a lifting sprocket chain assembly (32), a lifting support seat (33), a lifting support column (34), a lifting connection seat (35), a lifting screw and a lifting screw sleeve. The lifting support seat (33) is arranged on the frame (1), the lifting support column (34) is movably connected to the lifting support seat (33), the lifting connection seat (35) is arranged on the lifting support column (34), the lifting screw sleeve is embedded in the lifting support column (34), the lifting screw penetrates the lifting support seat (33) and is then threadedly connected to the lifting screw sleeve. The lifting motor (31) and the lifting sprocket chain assembly (32) are both arranged on the frame (1), the lifting motor (31) is connected to the lifting sprocket chain assembly (32), and the lifting sprocket chain assembly (32) is connected to the lifting screw.

9. The filling device according to claim 1, characterized in that: The filling device further comprises a material receiving and bottle clamping mechanism (7), the material receiving and bottle clamping mechanism (7) comprising a material receiving and bottle clamping mounting seat (71), a material receiving and bottle clamping cylinder (72), a material receiving and bottle clamping guide rod (73), a material receiving and bottle clamping support seat (74), a material receiving tray (75) and a bottle mouth clamping block (76), the material receiving and bottle clamping mounting seat (71) being connected to the lifting mechanism (3), the material receiving and bottle clamping guide rod (73) being connected to the material receiving and bottle clamping mounting seat (71) and extending along the second direction. The material receiving bottle clamp support seat (74) is sleeved on the material receiving bottle clamp guide rod (73), the material receiving bottle clamp air cylinder (72) is arranged on the material receiving bottle clamp mounting seat (71), the material receiving bottle clamp air cylinder (72) is connected to the material receiving bottle clamp support seat (74) to drive the material receiving bottle clamp support seat (74) to move along the second direction, and the material receiving plate (75) and the bottle mouth clamp block (76) are arranged on the material receiving bottle clamp support seat (74) at intervals along the second direction.

10. A filling method, characterized in that: The filling device according to claim 5 comprises the following steps: S1. The staff fills the material into the material tank (2); S2, the conveyor belt (52) conveys the container workpieces along a first direction. During the conveying process, the screw motor (55) drives the equidistant screw (54) to rotate. The thread grooves on the equidistant screw (54) can separate the container workpieces and the distances between the container workpieces are equal. When a batch of container workpieces are all moved to the bottom of the filling mechanism (4), the conveyor belt (52) stops conveying and the equidistant screw (54) stops moving. S3, the industrial computer transmits corresponding electrical signals to the adjusting mechanism (6) according to the equidistant screws (54) with different pitches, and the adjusting mechanism (6) drives the filling mechanisms (4) to move simultaneously and keeps the same distance between the filling mechanisms (4), so as to ensure that the filling mechanisms (4) move to the top of each container workpiece; S4, the lifting mechanism (3) drives each filling mechanism (4) to move downward, so that the filling port of the filling tank body (42) moves to the top of the container workpiece or extends into the container workpiece; S5, starting the first filling valve (43) to allow the material in the material tank (2) to flow into each filling tank (42), and the weighing sensor (45) to weigh the filling tank (42) and the material. When the weighing sensor (45) detects that the total weight of the filling tank (42) and the material reaches a preset value G, the weighing sensor (45) transmits a corresponding electrical signal to the industrial computer, and the industrial computer transmits the corresponding electrical signal to the first filling valve (43), and the first filling valve (43) is closed; S6, after the first filling valve (43) is closed, the second filling valve (44) is started to fill the material in the filling tank (42) into the container workpiece. At this time, the real-time weight of the material in the container workpiece is G1, and the real-time weight detected by the weighing sensor (45) is G2, then G1=G-G2. In addition, the rated weight of the material to be filled in the container workpiece is G3. When G1 approaches G3, the industrial computer transmits a corresponding electrical signal to the second filling valve (44), so that the material flow rate of the second filling valve (44) is gradually reduced. When G1=G3, the industrial computer transmits a corresponding electrical signal to the second filling valve (44), and the second filling valve (44) is closed, completing the filling of the container workpiece. S7. In step S4, if the filling opening of the filling tank body (42) has only moved to the top of the container workpiece, the lifting mechanism (3) will no longer drive each filling mechanism (4) to move upward; if the filling opening of the filling tank body (42) has extended into the container workpiece, the lifting mechanism (3) will drive each filling mechanism (4) to move upward so that the filling opening of the filling tank body (42) is away from the container workpiece; S8. The conveyor belt (52) continues to convey the container workpiece along the first direction. During the conveying process, the screw motor (55) continues to drive the equidistant screw (54) to rotate, and the conveyor belt (52) and the equidistant screw (54) cooperate to convey the container workpiece to the next process.

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