Automatic filling equipment for liquid chemical materials

Abstract

The invention relates to the technical field of chemical material filling machinery, and particularly provides automatic filling equipment for liquid chemical materials. Comprising a rotary conveying table, a pre-storage bin arranged in the center of the rotary conveying table and used for stacking a plurality of barrel covers, a filling mechanism, a cover sealing mechanism and a pushing mechanism used for pushing the barrel covers one by one, the filling mechanism and the cover sealing mechanism are arranged around the rotary conveying table, and a plurality of self-positioning trays used for bearing filling barrels are evenly and fixedly installed on the circumference of the rotary conveying table; the equipment provided by the invention is simple and compact in structure, small in occupied area, easy for subsequent equipment maintenance, higher in automation degree and beneficial to improving the production efficiency; and various advantages are considered, and the filling production requirements of existing small production enterprises are met.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical material filling machinery, and specifically provides an automatic filling device for liquid chemical materials. Background Art

[0002] In the production process of liquid chemical materials, the canning process is inevitably involved. The process of the filling process usually includes main links such as preparation work, container cleaning, material preparation, filling operation, sealing and encapsulation (i.e., capping), quality inspection and acceptance, etc. During formal operation, it mainly includes the filling operation of liquid chemical materials and the capping operation of the filling barrel. In the production workshop of large-scale production enterprises, a full-process automated filling production line is basically adopted for full-process automated filling, and fast and accurate automatic placement of the filling barrel is achieved through electronic sensing or high-precision structure cooperation. While in the production workshop of small-scale production enterprises, the entire filling process operation is basically carried out by manual cooperation with semi-automated equipment. For small-scale production enterprises, large full-process automated filling production lines not only occupy a large area, but also have high equipment costs and subsequent maintenance costs. At the same time, for the small-batch production rhythm of small-scale production enterprises, the use of a full-process automated filling production line easily leads to a high production capacity idle rate; in addition, although the semi-automated equipment used by existing small-scale production enterprises has a simple structure and low cost, its automation degree is relatively low, which affects the filling production efficiency. At the same time, in order to facilitate manual quick placement, the inner diameter of the placement groove of the filling barrel is usually slightly larger than the outer diameter of the filling barrel, but in this way, the problem of position deviation of the filling barrel is likely to occur when the filling barrel is manually placed, which in turn affects the efficiency and effect of the subsequent capping link. At this time, the position is basically corrected manually, but the effect of relying on manual observation of the position of the filling barrel to implement position correction is limited, and it will further affect the filling production efficiency. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides an automatic filling device for liquid chemical materials to solve the problems mentioned in the above background art.

[0004] To achieve the above object, the present invention adopts the following technical solutions: It includes a rotary conveying table, a pre-storage bin provided at the central position thereof for stacking multiple barrel lids, a filling mechanism and a capping mechanism arranged around the rotary conveying table, and a pushing mechanism for pushing the barrel lids one by one. A plurality of self-positioning trays for supporting filling barrels are uniformly and fixedly installed on the circumference of the rotary conveying table; the self-positioning tray includes a basic frame and a self-lowering tray; the self-lowering tray includes a main tray that is elastically supported and lifted; a plurality of linkage clamping blocks are assembled on the basic frame; the linkage clamping block includes a sliding block that is radially horizontally slidably arranged on the basic frame, a clamping block is arranged on the sliding block, ear blocks corresponding to the clamping blocks one by one are arranged at the bottom end of the main tray, inclined guide holes are opened on the ear blocks, and a pin shaft horizontally penetrating the corresponding inclined guide hole is assembled on the sliding block; when the weight of the filling barrel gradually increases as the liquid chemical material is filled, the main tray drives the ear blocks to gradually descend, and a plurality of clamping blocks synchronously move towards the center of the main tray under the cooperation of the inclined guide holes and the pin shafts and automatically position the filling barrel to the central position of the self-positioning tray; the capping mechanism includes a screwing chuck that is vertically lifted and rotationally driven and installed. When the rotary conveying table drives one of the self-positioning trays to rotate and convey to the position below the screwing chuck, the rotation center of the screwing chuck coincides with the positioning center of the self-positioning tray in the vertical direction.

[0005] Preferably, the basic frame is fixed on the rotary conveying table, the self-lowering tray is assembled at the center of the basic frame, and a plurality of the linkage clamping blocks are circumferentially distributed around the self-lowering tray; when the descent of the main tray stops, the filling barrel maintains a centered positioning state.

[0006] Preferably, the capping mechanism further includes a rotating motor that is vertically lifted and driven and installed with its output shaft facing downwards. The screwing chuck includes a connecting frame fixed at the end of the output shaft of the rotating motor. A pressing plate coaxial with the rotation center axis of the rotating motor is horizontally fixed at the bottom end of the connecting frame, and a claw assembly for clamping the edge of the barrel lid is assembled on the pressing plate.

[0007] Preferably, the pre-storage bin includes a central column, a lower support plate is horizontally fixed at the top end of the central column, a cylindrical bin for limiting the stacking of barrel lids is fixed on the lower support plate, and both the upper and lower barrel ends of the cylindrical bin are open; a pushing gap with a gap greater than the height of the barrel lid is provided between the bottom end of the cylindrical bin and the lower support plate, and the pushing gap faces the capping mechanism; one end of the pushing mechanism is close to the pushing gap.

[0008] Preferably, the pushing mechanism includes two horizontally installed and parallel beam rails, and a pushing component is assembled on each of the two beam rails. The pushing component is arranged to slide and drive along the beam rail. The beam rail extends from one side of the pre-storage bin to one side of the capping mechanism. The two pushing components are horizontally symmetrically arranged in the direction perpendicular to the beam rail. The pushing component includes a transfer pallet that moves horizontally in the direction perpendicular to the beam rail. When the transfer pallet moves to the closest position to the other pushing component, the transfer pallet moves to the pushing notch and is located below the cylindrical bin. When the transfer pallet moves to the farthest position from the other pushing component, the transfer pallet moves out from below the cylindrical bin. The upper end surface of the transfer pallet is at most level with the upper end surface of the lower pallet. A pushing protrusion that is higher than the upper end surface of the lower pallet is provided on the upper end surface of the transfer pallet.

[0009] Preferably, the filling mechanism and the capping mechanism are arranged in one-to-one correspondence with two adjacent self-positioning pallets. The filling mechanism includes a first frame, and a filling gun is installed on the first frame in a lifting and sliding fit manner.

[0010] Preferably, the basic frame includes a lower limit pallet. The main pallet is located above the lower limit pallet, and an avoidance window for avoiding the main pallet is provided on the lower limit pallet.

[0011] Preferably, the basic frame further includes a chassis fixed on the rotary conveyor table. A plurality of vertical plates are fixed on the chassis, and the lower limit pallet is horizontally fixed at the tops of the plurality of vertical plates. A guide sleeve is fixed at the bottom end of the main pallet, and a guide post is slidably fitted in the guide sleeve. The guide post is fixed on the chassis, and a compression spring is sleeved on the guide post. The two ends of the compression spring are respectively fixed on the chassis and the bottom end of the guide sleeve. The lower limit pallet is disc-shaped, and a plurality of linkage clamping blocks are circumferentially distributed and assembled on the lower limit pallet. The chute block is horizontally slidably installed on the lower limit pallet, and a clamping block is slidably fitted on the chute block along its sliding direction. A clamping spring is connected between the clamping block and the chute block. The ear block is fixedly installed on the side wall of the guide sleeve, and the inclined guide hole inclines downward and gradually away from the center of the guide sleeve.

[0012] Preferably, the claw assembly includes two claw blocks that are slidably fitted on the pressure plate along the same diameter direction. A third cylinder is horizontally fixed on the connecting frame, and a connecting rod is hinged between each of the two claw blocks and the output end of the third cylinder.

[0013] Preferably, a plurality of horizontally arranged wing plates are circumferentially distributed on the main pallet, and the upper end surface of the wing plate is flush with the upper end surface of the main pallet.

[0014] The above technical solution has the following advantages or beneficial effects: The present invention provides an automatic filling equipment for liquid chemical materials, which is provided with four operating stations of feeding, filling, capping and discharging. Corresponding structures for pre-storing barrel lids and automatically pushing barrel lids are arranged relative to the capping station. At the same time, a structure for automatically positioning the filling barrels is provided, which can achieve precise alignment of the barrel lid relative to the filling barrel mouth during the subsequent capping operation. Under the cooperation of manual operation, automatic intermittent rotary conveying between the four operating stations can be realized. During the rotary conveying process, operations such as automatic filling of liquid chemical materials, automatic centering positioning of filling barrels, automatic pushing of barrel lids, and automatic capping of barrel lids can be carried out, and the purpose of continuous automatic filling operation can be achieved; The equipment provided by the present invention has a simple and compact structure, occupies a small area, is easy to maintain subsequent equipment and matches the small-batch production rhythm. In addition, the degree of automation is higher, which helps to improve production efficiency; With multiple advantages taken into account, it is more suitable for the filling production needs of existing small-scale production enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, the present invention and its features, shape and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately drawn to scale, and the emphasis is on showing the gist of the present invention.

[0016] Figure 1 is a three-dimensional structural schematic diagram of an automatic filling equipment for liquid chemical materials provided by the present invention.

[0017] Figure 2 is a side view of an automatic filling equipment for liquid chemical materials provided by the present invention.

[0018] Figure 3 is a three-dimensional state diagram when the automatic filling equipment for liquid chemical materials provided by the present invention is working.

[0019] Figure 4 is a side view when the automatic filling equipment for liquid chemical materials provided by the present invention is working.

[0020] Figure 5 is Figure 4 a partial enlarged view of part A in

[0021] Figure 6 is a top view when the automatic filling equipment for liquid chemical materials provided by the present invention is working.

[0022] Figure 7 is Figure 6 a cross-sectional view taken along B-B in

[0023] Figure 8 is Figure 7 a partial enlarged view of part C in

[0024] Figure 9 is a three-dimensional sectional view of a self-positioning tray.

[0025] Figure 10 is a three-dimensional structure diagram of a basic frame.

[0026] Figure 11 is a three-dimensional structure diagram of the assembly of a second cylinder, a rotating motor, and a screwing chuck.

[0027] Figure 12 is a diagram showing the assembly position relationship between a pushing mechanism and a pre-storage bin.

[0028] Figure 13 is a three-dimensional view of a filling barrel.

[0029] In the figure: 1, rotary conveying table; 11, electric turntable; 12, station pallet; 2, self-positioning tray; 21, basic frame; 211, chassis; 212, vertical plate; 213, lower limit tray; 2131, avoidance window; 2132, notch chute; 22, self-lowering tray; 221, main tray; 2211, wing plate; 222, guide sleeve; 223, ear block; 2231, inclined guide hole; 224, guide post; 225, compression spring; 23, linkage clamp block; 231, chute block; 2311, pin shaft; 232, vertical block; 233, clamp block; 234, clamping spring; 3, filling mechanism; 31, first frame; 32, first cylinder; 33, filling gun; 4, capping mechanism; 41, second frame; 42, second cylinder; 43, rotating motor; 44, screwing chuck; 441, connecting frame; 442, pressure plate; 4421, guide groove; 443, jaw assembly; 4431, third cylinder; 4432, jaw block; 4433, connecting rod; 5, pre-storage bin; 51, central column; 52, lower support plate; 53, cylindrical bin; 54, pushing notch; 6, pushing mechanism; 61, cross beam slide rail; 62, pushing assembly; 621, stroke frame; 622, transfer pallet; 6221, pushing convex block; 623, fourth cylinder; 624, guide rod; 7, filling barrel; 71, barrel lid. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] An automatic filling equipment for liquid chemical materials mainly uses a filling barrel 7 made of plastic material as shown in Figure 13 to perform filling and packaging operations on liquid chemical materials. The equipment can be integrally installed on the same steel plate base; as shown in Figure 1 , Figure 2 and Figure 7 , the equipment includes a rotary conveying table 1. The rotary conveying table 1 includes an electric turntable 11 fixed to the steel plate base by bolts and a station pallet 12 fixed to the upper end surface of the electric turntable 11 by bolts. The electric turntable 11 is an existing electric rotary drive device and can rotate at a set speed and intermittent rotation period. In this embodiment, the station pallet 12 is in a cross-plate structure, and the electric turntable 11 rotates intermittently by 90 degrees each time.

[0033] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 13 , four self-positioning trays 2 for supporting and placing the filling barrel 7 are fixedly installed on the station pallet 12, and the four self-positioning trays 2 are evenly distributed around the rotation center of the electric turntable 11 in a circumferential manner; a filling mechanism 3 and a capping mechanism 4 are arranged around the rotary conveying table 1, and the filling mechanism 3 and the capping mechanism 4 are arranged in one-to-one correspondence with two adjacent self-positioning trays 2; a pre-storage bin 5 for stacking the barrel lids 71 of multiple filling barrels 7 is arranged in a cooperative manner between the rotary conveying table 1 and the capping mechanism 4, and a pushing mechanism 6 is arranged between the pre-storage bin 5 and the capping mechanism 4. The pushing mechanism 6 pushes the barrel lids 71 placed at the pre-storage bin 5 to the capping mechanism 4 one by one. In the equipment provided by the present invention, four self-positioning trays 2 are provided. As shown in Figure 6 , the positions of the four self-positioning trays 2 are marked as four stations G1, G2, G3, and G4 in sequence. The four stations G1, G2, G3, and G4 correspond to the loading station for placing the filling barrel 7, the filling station for filling, the capping station for capping, and the unloading station for unloading the filling barrel 7 in sequence. Among them, the filling station corresponds to the filling mechanism 3, and the capping station corresponds to the capping mechanism 4.

[0034] As shown in Figure 1 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown in the figure, the self-positioning tray 2 includes a base frame 21. The base frame 21 includes a circular chassis 211 fixed to the station pallet 12 by bolts. Four vertical plates 212 evenly distributed around the circumference of the chassis 211 are welded to the chassis 211. A lower limit tray 213 is horizontally welded to the tops of the four vertical plates 212. The lower limit tray 213 is of a disc structure and is coaxially arranged with the chassis 211. A clearance window 2131 is provided at the center of the lower limit tray 213. Four notch chutes 2132 evenly distributed circumferentially and alternately with the four vertical plates 212 are welded to the bottom end of the lower limit tray 213, and the notch chutes 2132 are arranged radially along the lower limit tray 213. A self-lowering tray 22 is assembled at the center of the base frame 21. The self-lowering tray 22 includes a main tray 221 located above the lower limit tray 213. When an empty filling barrel 7 is placed on the self-positioning tray 2, initially it is mainly supported by the main tray 221. Considering that the bottom end of the filling barrel 7 generally has protruding feet, in order to increase the supporting area of the main tray 221 and ensure the quick and stable placement of the filling barrel 7, four horizontally arranged wing plates 2211 are evenly distributed around the circumference of the main tray 221, and the upper end surfaces of the wing plates 2211 are flush with the upper end surface of the main tray 221. A square guide sleeve 222 is vertically welded to the center of the bottom end of the main tray 221. The guide sleeve 222 passes through the clearance window 2131. A square guide post 224 is slidably fitted in the guide sleeve 222, and the guide post 224 is welded to the chassis 211. A compression spring 225 is sleeved on the guide post 224, and the two ends of the compression spring 225 are respectively welded to the chassis 211 and the bottom end of the guide sleeve 222. Linkage clamping blocks 23 are correspondingly assembled at the four notch chutes 2132, and the four linkage clamping blocks 23 are evenly distributed around the circumference of the lower limit tray 213. The linkage clamping block 23 includes a chute block 231 slidably installed in the notch chute 2132. A vertically upward standing block 232 is welded to the end of the chute block 231 away from the center of the lower limit tray 213. A clamping block 233 is slidably fitted on the chute block 231 along its sliding direction. The clamping surface end of the clamping block 233 is in an M shape and has two contact protrusions. A clamping spring 234 is horizontally welded between the clamping block 233 and the standing block 232. Ear blocks 223 are welded to the four outer side walls of the guide sleeve 222. The four ear blocks 223 are correspondingly arranged in cooperation with the four linkage clamping blocks 23. An inclined guide hole 2231 is provided in the ear block 223. The inclined guide hole 2231 slopes downward and gradually away from the center of the guide sleeve 222. A pin shaft 2311 horizontally penetrating through the corresponding inclined guide hole 2231 is assembled on the chute block 231.

[0035] As Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, the filling mechanism 3 includes a first frame 31 welded to the steel plate base. At the top of the first frame 31, a first cylinder 32 is vertically fixed by bolts. A filling gun is vertically and slidably installed on the first frame 31, and the top of the filling gun is fixed to the output end of the first cylinder 32. It should be noted that the filling mechanism 3 is an existing machine that only performs filling operations, and the filling gun is the filling head in this machine. The filling mechanism 3 should also include an existing metering control device for controlling the filling volume and a bin for storing liquid chemical materials, and the bin is connected to the filling gun through a pipeline. The filling mechanism 3 is not the design point of the present invention, so other structures are not shown in the drawings.

[0036] During the entire process of filling liquid chemical materials, first, an empty filling bucket 7 can be manually placed on the self-aligning tray 2 at the loading station. Subsequently, under the intermittent rotation and transportation of the rotary conveyor 1, the filling bucket 7 is transported to the filling station. Immediately, the filling mechanism 3 performs the filling operation. The first cylinder 32 drives the filling gun to descend into the filling bucket 7. Subsequently, the filling gun 33 fills the liquid chemical materials into the filling bucket 7, and the first cylinder 32 synchronously drives the filling gun to rise at a constant speed. When the filling gun rises to the initial height, the filling of the filling bucket 7 is completed. In addition, during the filling process, the weight of the filling bucket 7 gradually increases as the liquid chemical materials are poured in, causing the compression spring 225 to be gradually compressed. The main tray 221 and the guide sleeve 222 then descend synchronously, and the ear block 223 also descends synchronously with the guide sleeve 222. Subsequently, the pin 2311 is pulled through the inclined guide hole 2231. Under the guidance of the notch chute 2132, the linkage clamp block 23 as a whole moves closer to the center of the lower limit tray 213. Before the bottom feet of the filling bucket 7 contact the upper end surface of the lower limit tray 213, the four linkage clamp blocks 23 cooperate to clamp and make the filling bucket 7 automatically located at the center position of the self-aligning tray 2, facilitating subsequent alignment and capping operations. As the liquid chemical materials continue to be poured in, the main tray 221 finally descends to the same height as the lower limit tray 213, and the filling bucket 7 is placed in a centered and positioned state on the supporting end surface jointly formed by the main tray 221 and the lower limit tray 213.

[0037] As Figure 1 、 Figure 5 、 Figure 7 and Figure 11As shown, the capping mechanism 4 includes a second frame 41 welded to the steel plate base. At the top of the second frame 41, a second cylinder 42 is vertically fixed by bolts. The output end of the second cylinder 42 is fixed with a rotating motor 43 by screws, and the output shaft of the rotating motor 43 is arranged vertically downward. The rotating motor 43 is an existing servo motor, and the rotation center axis of the rotating motor 43 coincides with the positioning center of the self-positioning tray 2 at the filling station. A screwing chuck 44 is fixed on the output shaft of the rotating motor 43. The screwing chuck 44 includes a connecting frame 441 fixed to the end of the output shaft of the rotating motor 43 by bolts. At the bottom end of the connecting frame 441, a pressure plate 442 coaxial with the rotation center axis of the rotating motor 43 is horizontally welded. A claw assembly 443 for clamping the edge of the barrel lid 71 is assembled on the pressure plate 442. Two guide grooves 4421 are welded on the pressure plate 442, and the two guide grooves 4421 are distributed on the same diameter line of the pressure plate 442 and are symmetrically arranged about the center of the pressure plate 442. The claw assembly 443 includes two claw blocks 4432 arranged horizontally opposite to each other and slidingly installed in the two guide grooves 4421 in a one-to-one correspondence. A third cylinder 4431 is horizontally fixed on the connecting frame 441, and connecting rods 4433 are hinged between the two claw blocks 4432 and the output end of the third cylinder 4431.

[0038] As Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 12 As shown, the pre-storage bin 5 includes a central column 51. The central column 51 vertically penetrates the center of the rotary conveyor table 1 and is welded to the steel plate base. A lower support plate 52 is horizontally welded to the top end of the central column 51. A cylindrical bin 53 for limiting the stacking of barrel lids 71 is welded on the lower support plate 52. Both the upper and lower ends of the cylindrical bin 53 are open. The inner radius of the cylindrical bin 53 is slightly larger than the radius of the barrel lid 71 of the filling barrel 7. Figure 5 It can be seen that the lower support plate 52 is arranged in the center of the cylindrical bin 53 as a whole, and the left and right widths of the lower support plate 52 are smaller than the diameter of the cylindrical bin 53. Multiple barrel lids 71 can be manually stacked and placed in the cylindrical bin 53 in sequence, and the overall support is provided by the lower support plate 52. The barrel lid 71 at the bottom is partially exposed on the left and right sides of the lower support plate 52. A pushing gap 54 with a gap larger than the height of the barrel lid 71 is provided between the bottom end of the cylindrical bin 53 and the lower support plate 52, and the gap of the pushing gap 54 is smaller than the total height of two stacked barrel lids 71. The pushing gap 54 faces the capping mechanism 4.

[0039] As Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 12As shown in the figure, the pushing mechanism 6 includes two crossbeam slide rails 61 that are horizontally welded to the second frame 41 and arranged in parallel. Pushing components 62 are assembled on both crossbeam slide rails 61. The crossbeam slide rails 61 extend from one side of the pre-storage bin 5 to one side of the capping mechanism 4. The two pushing components 62 are horizontally symmetrically arranged in a direction perpendicular to the crossbeam slide rails 61. The pushing component 62 includes a travel frame 621 that slides along the crossbeam slide rail 61. An existing electric slider can be fitted to the travel frame 621 to drive the travel frame 621 to move along the crossbeam slide rail 61. A fourth cylinder 623 is horizontally fixed to the travel frame 621 by screws. The fourth cylinder 623 is vertically arranged relative to the crossbeam slide rail 61 on the horizontal plane. The output end of the fourth cylinder 623 is horizontally fixed with a transfer support plate 622. A guide rod 624 that is slidably engaged with the travel frame 621 is welded to the transfer support plate 622. The upper end surface of the transfer support plate 622 is at the same height as the upper end surface of the lower support plate 52. A pushing protrusion 6221 that is higher than the upper end surface of the lower support plate 52 is welded to the upper end surface of the transfer support plate 622. Driven by the fourth cylinder 623, the transfer support plate 622 can horizontally move in a direction perpendicular to the crossbeam slide rail 61. When it is necessary to receive and transfer the push bucket lid 71, the transfer support plate 622 can be moved to the pushing notch 54 and located below the cylindrical bin 53, so that the transfer support plate 622 can be in contact with the exposed side of the bottommost bucket lid 71 relative to the lower support plate 52. When it is necessary to avoid the bucket lid 71, the transfer support plate 622 can be moved out from below the cylindrical bin 53.

[0040] After the filling bucket 7 is filled, it will continue to be intermittently conveyed to the capping station. At the capping station, the pushing mechanism 6 first pushes the bucket lid 71 pre-stored in the pre-storage bin 5 to the capping mechanism 4. Subsequently, the capping mechanism 4 automatically caps the filling bucket 7. The specific process is as follows: Synchronously start two No. 4 cylinders 623 to drive two transfer pallets 622 to move below the cylindrical bin 53, so that the bottommost bucket lid 71 contacts the two transfer pallets 622 simultaneously. Then, the two pushing components 62 move synchronously along their respective crossbeam slides 61 towards the capping mechanism 4. The two pushing bumps 6221 on the two transfer pallets 622 will push the bottommost bucket lid 71 outwards from the pushing notch 54. When the bucket lid 71 is completely removed, the multiple bucket lids 71 stacked above the original position of the bucket lid 71 will automatically fall onto the lower pallet 52 as a whole. The removed bucket lid 71 stops moving directly below the screwing chuck 44. Then, the No. 2 cylinder 42 is started and drives the screwing chuck 44 to descend as a whole, so that the bucket lid 71 is located between the two jaw blocks 4432, and the pressure plate 442 presses against the upper end of the bucket lid 71. Subsequently, the No. 3 cylinder 4431 is started, and two connecting rods 4433 drive the two jaw blocks 4432 to clamp the bucket lid 71. Immediately afterwards, the two No. 4 cylinders 623 are started again, and the two transfer pallets 622 are withdrawn from the bottom end of the bucket lid 71. Then, the two pushing components 62 move along the crossbeam slide 61 and reset to the initial position. After the transfer pallet 622 is withdrawn, the rotating motor 43 drives the bucket lid 71 to rotate as a whole with the screwing chuck 44, and the No. 2 cylinder 42 drives the screwing chuck 44 and the bucket lid 71 to descend uniformly, so as to quickly screw the bucket lid 71 onto the filling bucket 7. Subsequently, the clamping limit of the two jaw blocks 4432 is released, and the screwing chuck 44, the jaw blocks 4432, etc. move upwards and reset as a whole.

[0041] After the filling bucket 7 is capped, under the intermittent rotational conveyance of the rotary conveyance table 1, it continues to be conveyed to the unloading station, and at the unloading station, the filling bucket 7 can be unloaded manually or by a manipulator.

[0042] The present invention provides an automatic filling device for liquid chemical materials. It adopts a rotary station distribution design, with four operating stations: feeding, filling, capping, and discharging. Structures related to pre-storing the barrel lids 71 and automatically pushing the barrel lids 71 are provided relative to the capping station. Meanwhile, a structure for automatically positioning the filling barrels 7 is provided, which can achieve precise alignment of the barrel lids 71 relative to the mouths of the filling barrels 7 during subsequent capping operations. With manual cooperation, automatic intermittent rotary conveying can be achieved between the four operating stations. During the rotary conveying process, operations such as automatic filling of liquid chemical materials, automatic centering positioning of the filling barrels 7, automatic pushing of the barrel lids 71, and automatic encapsulation of the barrel lids 71 can be carried out, achieving the purpose of continuous automatic filling operations. The device provided by the present invention has a simple and compact structure, occupies a small area, and is easy to maintain in subsequent equipment. In addition, it has a higher degree of automation, which helps to improve production efficiency. Considering multiple advantages, it is more suitable for the filling production needs of existing small-scale production enterprises.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0044] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0045] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments. The equipment and structures not described in detail should be understood to be implemented in a common manner in the art. Any person skilled in the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. This does not affect the essence of the present invention. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An automatic filling equipment for liquid chemical materials, characterized by: It includes a rotary conveyor platform and a pre-storage bin at its center for stacking multiple barrel covers, a filling mechanism and a capping mechanism arranged around the rotary conveyor platform, and a pushing mechanism for pushing barrel covers one by one. Multiple self-positioning trays for supporting filling barrels are evenly fixedly installed on the circumference of the rotary conveyor platform; The self-positioning pallet includes a basic frame and a self-dropping pallet; the self-dropping pallet includes a main pallet with elastic support and lifting arrangement; a plurality of linkage clamps are mounted on the basic frame; The linkage clamping block comprises a slide block radially and horizontally slidably arranged on the base frame, a clamping block is arranged on the slide block, an ear block corresponding to the clamping block is arranged at the bottom of the main tray, an oblique guide hole is opened on the ear block, and a pin shaft horizontally penetrating the corresponding oblique guide hole is assembled on the slide block; As the weight of the filling barrel increases with the addition of liquid chemical materials, the main tray drives the ear blocks to gradually drop, and multiple clamping blocks move synchronously toward the center of the main tray in cooperation with the inclined guide holes and pins, so that the filling barrel is automatically positioned to the center of the self-positioning tray; The capping mechanism comprises a screwing chuck which is vertically lifted and installed for rotational driving. When one of the self-positioning trays rotates to below the screwing chuck, the rotation center of the screwing chuck and the positioning center of the self-positioning tray coincide with each other in the vertical direction.

2. The automatic filling equipment for liquid chemical materials according to claim 1 is characterized by: The basic frame is fixed on the rotary conveyor platform, the self-lowering pallet is assembled at the center of the basic frame, and a plurality of linkage clamps are distributed circumferentially around the self-lowering pallet. When the main pallet stops descending, the filling barrel remains in a centrally positioned state.

3. The automatic filling equipment for liquid chemical materials according to claim 1 is characterized in that: The capping mechanism also includes a rotary motor installed in a vertical lifting drive with an output shaft arranged downward, and the screwing chuck includes a connecting frame fixed to the output shaft end of the rotary motor, and a pressure plate coaxially arranged with the rotation center axis of the rotary motor is horizontally fixed to the bottom end of the connecting frame, and the pressure plate is equipped with a claw assembly for clamping the edge of the barrel cover.

4. The automatic filling equipment for liquid chemical materials according to claim 1 is characterized in that: The pre-storage bin includes a central column, a lower support plate is horizontally fixed to the top of the central column, a cylindrical bin for limiting the stacking of barrel covers is fixed to the lower support plate, and the upper and lower ends of the cylindrical bin are both open; a pushing notch with a gap greater than the height of the barrel cover is provided between the bottom end of the cylindrical bin and the lower support plate, and the pushing notch faces the capping mechanism; one end of the pushing mechanism is arranged close to the pushing notch.

5. The automatic filling equipment for liquid chemical materials according to claim 4 is characterized in that: The pushing mechanism includes two horizontally installed and parallel beam slides, and each of the two beam slides is equipped with a pushing assembly, and the pushing assembly is slidably driven along the beam slides; the beam slides extend from one side of the pre-storage bin to one side of the capping mechanism, and the two pushing assemblies are horizontally symmetrically arranged on a guide perpendicular to the beam slides; the pushing assembly includes a transfer pallet that is horizontally movable in a direction perpendicular to the beam slides, and when the transfer pallet moves to the closest pushing assembly on the other side, the transfer pallet moves to the pushing notch and is located below the cylindrical silo; when the transfer pallet moves to the farthest pushing assembly on the other side, the transfer pallet moves out from below the cylindrical silo; the upper end face of the transfer pallet is at most the same height as the upper end face of the lower pallet; the upper end face of the transfer pallet is provided with a pushing protrusion that is higher than the upper end face of the lower pallet.

6. The automatic filling equipment for liquid chemical materials according to claim 1 is characterized by: The filling mechanism and the capping mechanism are arranged in one-to-one correspondence with the self-positioning trays at two adjacent positions. The filling mechanism comprises a No. 1 frame, and a filling gun is installed on the No. 1 frame in a lifting and sliding manner.

7. The automatic filling equipment for liquid chemical materials according to claim 2 is characterized by: The basic frame comprises a lower limit pallet; the main pallet is located above the lower limit pallet, and a avoidance window for avoiding the main pallet is provided on the lower limit pallet.

8. The automatic filling equipment for liquid chemical materials according to claim 7 is characterized in that: The basic frame also includes a chassis fixed on the rotary conveying table, and a plurality of vertical plates are fixed on the chassis, and the lower limit tray is horizontally fixed on the top ends of the plurality of vertical plates; a guide sleeve is fixed to the bottom end of the main tray, and a guide column is slidably fitted in the guide sleeve, and the guide column is fixed to the chassis, and a compression spring is sleeved on the guide column, and the two ends of the compression spring are respectively fixed to the chassis and the bottom end of the guide sleeve; the lower limit tray is disc-shaped, and a plurality of linkage clamping blocks are circumferentially distributed and assembled on the lower limit tray, and the slide block is radially and horizontally slidably installed on the lower limit tray, and a clamping block is slidably fitted on the slide block along its sliding direction, and a clamping spring is connected between the clamping block and the slide block; the ear block is fixedly installed on the side wall of the guide sleeve, and the inclined guide hole is inclined from top to bottom in a direction gradually away from the center of the guide sleeve.

9. The automatic filling equipment for liquid chemical materials according to claim 3 is characterized by: The clamping claw assembly includes two clamping claw blocks which are slidably mounted on the pressure plate along the same diameter direction, a No. 3 cylinder is horizontally fixed on the connecting frame, and connecting rods are hinged between the two clamping claw blocks and the output end of the No. 3 cylinder.

10. The automatic filling equipment for liquid chemical materials according to claim 7 or 8, characterized in that: A plurality of horizontally arranged wing plates are distributed on the circumference of the main tray, and the upper end surfaces of the wing plates are arranged flush with the upper end surface of the main tray.

Images