Barium sulfate automatic packaging device and process

Abstract

The application relates to the technical field of material packaging machinery, and particularly discloses a barium sulfate automatic packaging device and process, a clamping mechanism is installed on an electric turntable and used for clamping a packaging bag; a filling mechanism is arranged on a workbench and located on the side of the electric turntable, the filling mechanism is provided with a filling pipe capable of extending into the bag opening of the packaging bag downwards; a locking unit comprises a locking piece and a driving piece, the locking piece is slidably assembled on the filling pipe along the radial direction of the filling pipe, the locking piece is provided with a locking groove matched with the filling pipe, when the two locking pieces are close to each other, the locking groove can tightly buckle the bag opening of the packaging bag on the outer wall of the filling pipe; and the driving piece is installed on the filling pipe and used for driving the locking piece to slide. The barium sulfate automatic packaging device and process can avoid the leakage of the powdery material through the buckling effect of the locking groove on the bag opening, and can also make the powdery material difficult to adhere to the inner surface of the bag opening, so that the subsequent sealing effect of the bag opening is ensured.

Description

Technical Field

[0001] This invention relates to the field of material packaging machinery technology, specifically to an automatic barium sulfate packaging device and process. Background Technology

[0002] The bag feeding device of a packaging machine is one of the key components in an automated packaging production line. It is responsible for accurately delivering packaging bags to the packaging station for filling, sealing, and other operations. The bag feeding device of a packaging machine typically consists of a bag feeding bracket, a clamping device, and a bag conveying mechanism. The bag feeding bracket provides support and stability for the entire bag feeding device, the clamping device is used to hold the packaging bags, and the bag conveying mechanism is responsible for transporting the packaging bags from the feeding position to the packaging station.

[0003] In practical applications, bag feeding devices are used in various bag-feeding packaging machines. These packaging machines are typically used in automated packaging production lines in industries such as food, pharmaceuticals, chemicals, and daily chemicals to improve production efficiency, reduce labor costs, and ensure product quality.

[0004] Chinese patent document CN117902110B discloses an automatic packaging bag opening device, including a frame and a bag opening positioning mechanism. The bag opening positioning mechanism is movably disposed at one end of the frame and is used to clamp the bag opening of the packaging bag. The bag opening positioning mechanism includes a clamping frame and a bag opening assembly. The bag opening assembly is used to drive the two clamping frames to move closer together to attract the bag opening, or to drive the two clamping frames to move away from each other to open the bag opening. After the bag opening is opened, the feed port of the filling mechanism can be directly aligned with the bag opening to achieve the purpose of filling. When the packaging bag is full of product, the clamping frame can release its suction clamp on the bag opening, and the packaging bag falls due to gravity, achieving discharge.

[0005] However, the feed inlet of the filling mechanism is usually in the form of a cylindrical structure. After being inserted into the bag opening, the inner surface of the bag is difficult to adhere to the cylindrical structure. As a result, a ring-shaped gap is formed between the outer periphery of the cylindrical structure and the bag opening. When filling barium sulfate, the barium sulfate may be blown up and leak from the ring gap, causing pollution to the working environment. In addition, the barium sulfate may adhere to the inner surface of the bag opening, affecting the subsequent sealing of the bag opening. Summary of the Invention

[0006] This invention provides an automatic barium sulfate packaging device and process, which aims to solve the problems in related technologies where powdered materials may leak and cause environmental pollution, as well as adhere to the inner surface of the bag opening and affect sealing.

[0007] An automatic barium sulfate packaging device of the present invention includes a worktable, an electric turntable, a clamping mechanism, a filling mechanism, and a locking unit. The electric turntable is mounted on the worktable, and the clamping mechanism is mounted on the electric turntable for clamping packaging bags. The filling mechanism is located on the worktable and beside the electric turntable, and has a filling tube that can extend downward into the opening of the packaging bag. There are two locking units located on both sides of the filling tube. Each locking unit includes a locking element and a driving element. The locking element is slidably mounted on the filling tube along the radial direction of the filling tube. The locking element has a crescent-shaped locking groove that is adapted to the filling tube. When the two locking elements are close to each other, the locking groove can fasten the opening of the packaging bag to the outer wall of the filling tube. The driving element is mounted on the filling tube and is used to drive the locking element to slide.

[0008] Its effect is as follows: When the filling tube begins to extend into the opening of the packaging bag, the drive device is activated, causing the two locking components to approach each other and fit tightly. Under the action of the locking groove, the opening of the packaging bag is stably fastened to the outer wall of the filling tube, forming a wrapping structure. This eliminates any annular gap that may occur between the outer wall of the filling tube and the bag opening, thus preventing powdery materials from leaking from the outer periphery of the filling tube during the filling process. This improves the sealing performance of the filling operation and also helps maintain a clean working environment, avoiding the adverse effects of dust on the health of operators and the operation of equipment. At the same time, because the inner surface of the bag opening is tightly attached to the outer wall of the filling tube, powdery materials are difficult to enter and adhere to the inner surface of the bag opening, greatly reducing the risk of contamination of the inner surface. This further ensures the effectiveness of the bag opening in subsequent sealing processes, improving the overall quality of the packaging and the reliability of product preservation.

[0009] Preferably, the driving component includes a telescopic device and a first elastic element. The telescopic device is mounted on the filling tube and has a push block at its output end. At least one of the push block and the locking element has an inclined surface so that when the push block slides, the inclined surface can squeeze the locking element and make it slide. The first elastic element connects the locking element and the filling tube and is used to make the locking element tend to separate from the filling tube.

[0010] Preferably, the clamping mechanism includes two clamping units arranged side by side tangentially along the electric turntable. Each clamping unit includes a fixed clamping jaw and a movable clamping jaw spaced apart from each other. The fixed clamping jaw is disposed on the electric turntable, and the movable clamping jaw is slidably mounted on the fixed clamping jaw along the radial direction of the electric turntable. The electric turntable is provided with a clamping drive assembly for driving the movable clamping jaw to slide, so that the movable clamping jaw can approach the fixed clamping jaw to clamp the opening of the packaging bag.

[0011] Preferably, both the fixed gripper and the movable gripper are elastically slidably connected with telescopic heads, and clamping rollers are rotatably mounted on the telescopic heads. When the two locking members approach each other, they can squeeze the clamping rollers, causing the clamping rollers to retract towards the fixed gripper or the movable gripper.

[0012] The effect is that this setting avoids interference between the clamping unit and the locking element, and ensures that the clamping unit and the locking element are connected in sequence, avoiding the formation of unclamped parts between them, and ensuring that the opening of the packaging bag can be fully clamped in place, thereby preventing the overflow of powdery materials during filling.

[0013] Preferably, the fixed gripper is elastically slidably connected to the electric turntable along the tangential direction. The clamping mechanism also includes a slide table slidably mounted on the electric turntable along the radial direction. The movable gripper is slidably mounted on the slide table along the tangential direction of the electric turntable. The clamping drive assembly is connected to the slide table to drive the slide table to slide. The slide table is provided with inclined blocks that are equal in number and correspond one-to-one with the number of clamping units. The inclined blocks are used to squeeze the fixed gripper of the corresponding clamping unit during the sliding of the slide table, so that the two clamping units are brought closer to each other through the fixed gripper.

[0014] Preferably, the slide table includes a mother stage and a daughter stage. The mother stage is slidably mounted on the electric turntable along the radial direction of the turntable, and the clamping drive assembly is connected to the mother stage. The daughter stage is elastically slidably connected to the mother stage along the radial direction of the electric turntable, and the movable gripper is slidably mounted on the daughter stage along the tangential direction of the electric turntable.

[0015] Its effect is as follows: When the moving and fixed grippers hold the packaging bag, the clamping drive assembly controls the main body to continue sliding. At this time, the main body and the secondary body slide relative to each other, increasing the elastic force between them. This, in turn, increases the clamping force between the moving and fixed grippers, improving the firmness of the gripping of the packaging bag. Subsequently, the inclined block approaches and presses against the corresponding fixed grippers, causing each fixed gripper to move inward towards each other. With the cooperation of each component, the clamping units move closer to each other, and the clamping units press the opening of the packaging bag inward, forming a space similar to an ellipse or circle. This achieves automatic opening of the packaging bag opening, facilitating feeding.

[0016] Preferably, a tamping element is slidably mounted on the fixed jaw, and the sliding directions of the tamping elements in the two clamping units are inclined and symmetrical to each other. A second elastic element is clamped between the tamping element and the fixed jaw, and the second elastic element applies an upward elastic force to the tamping element. A downward pressure telescopic device is installed on the worktable next to the electric turntable. The output end of the downward pressure telescopic device is provided with a pressure element located above the tamping element. The downward pressure telescopic device is used to control the downward movement of the pressure element and to compress the tamping element so that the tamping element is inserted into the opening of the packaging bag.

[0017] Preferably, it further includes a side-pushing mechanism located above the electric turntable and opposite to the pressure member. The side-pushing mechanism includes a horizontal pusher mounted on the worktable, a support fixed to the output end of the horizontal pusher, two side push rods hinged to the support, and a side push block hinged to the side push rods. A guide kit is slidably mounted on the worktable along the tangential direction of the electric turntable. The side push block is slidably inserted into the guide kit. The side push block is used to pass between the sliding ends of the two fixed jaws when the horizontal pusher extends. The side push block has a limiting part, which is used to push the fixed jaws outward along the tangential direction of the electric turntable when it abuts against the guide kit.

[0018] Preferably, a torsional elastic element is connected between the side push rod and the support. The torsional elastic element is used to make the two side push rods tend to move closer together. The tamping element is provided with a suction hole, which is used to connect to an external negative pressure suction mechanism to remove dust from the opening of the packaging bag.

[0019] Its effect is as follows: when the side push block pushes the fixed clamping claw outward, each fixed clamping claw will move away from each other, which in turn will cause the two tamping parts to move away from each other. The hooks of the two tamping parts slide in a straight line from the center of the bag opening to both sides. During the sliding, the hooks of the two tamping parts can move the blocky material in the bag opening again, making it flat and not occupying the bag opening position. When the hooks of the two tamping parts slide to both sides of the bag opening, the hooks of the two tamping parts will tighten the edge of the bag opening respectively, so that the bag opening is in a straight and taut state, which is convenient for sealing the bag opening.

[0020] On the other hand, the packaging process using the above-mentioned automatic barium sulfate packaging device includes the following steps:

[0021] S1. Feed the packaging bag into the feeding position and place it on the clamping mechanism. The clamping mechanism opens the bag opening and turns it into an oval or round shape.

[0022] S2. The electric turntable drives the clamping mechanism to rotate, so that the clamping mechanism enters the filling position. The driving component controls the two locking components to move closer to each other, and the locking groove fastens the bag opening of the packaging bag to the outer wall of the filling tube.

[0023] S3. The electric turntable transfers the packaging bag to the sealing position through the clamping mechanism. The downward telescopic device controls the pressure component to move down, and the pressure component squeezes the tamping component so that the tamping component is inserted into the opening of the packaging bag.

[0024] S4. The clamping drive assembly controls the mother body to reset, and the clamping mechanism resets at the same time. Then, the flat push telescopic device extends. When the limiting part stops on the guide kit, the two tamping parts slide linearly from the center of the bag opening to both sides. When the two tamping parts slide to both sides of the bag opening, they tighten the edge of the bag opening.

[0025] The effect is as follows: when the two locking structures approach and lock together, the locking groove can tightly press the bag opening against the outer wall surface of the filling tube, thereby eliminating any annular gap that may occur between the filling tube and the bag opening. This reduces the risk of powdered material leaking from the outer wall area of ​​the filling tube during the filling process and helps maintain a safe and clean production environment. Simultaneously, because the inner surface of the bag opening is in close contact with the outer wall of the filling tube, powdered material is unlikely to enter the inner layer of the bag opening or adhere to its surface, thus reducing contamination in the bag opening area. This also ensures the sealing effect of subsequent sealing operations, improving the overall quality and reliability of the packaging.

[0026] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0027] This invention uses the proximity of two locking components to secure the bag opening to the outer wall of the filling tube, thus preventing the formation of annular gaps between the outer periphery of the filling tube and the bag opening. This avoids leakage of powdered material from the outer periphery of the filling tube during filling, protecting the working environment. Furthermore, because the inner surface of the bag opening is attached to the outer wall of the filling tube, powdered material is less likely to enter and adhere to the inner surface of the bag opening, reducing contamination and ensuring a good seal. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the external shape of an automatic barium sulfate packaging device according to the present invention.

[0029] Figure 2 This is a perspective view of the electric turntable and clamping mechanism portion of the present invention.

[0030] Figure 3 This is an isometric schematic diagram of the slide table to clamping unit portion of the present invention.

[0031] Figure 4 This is a top view of the mother body of the present invention.

[0032] Figure 5 This is a top view of the sub-platform of the present invention.

[0033] Figure 6 This is a top view of the fixed gripper of the present invention.

[0034] Figure 7 This is a front view of the fixed clamping end of the present invention.

[0035] Figure 8 This is a front view of the telescopic head of the present invention.

[0036] Figure 9 This is a schematic diagram of the filling mechanism of the present invention.

[0037] Figure 10This is a schematic diagram of the structure of the side-pushing mechanism to the pressure member part of the present invention.

[0038] Figure 11 This is a side view of the horizontal pusher telescopic component to the side pusher block portion of the present invention.

[0039] Figure 12 This is a front view of the horizontal extension device of the present invention.

[0040] Figure 13 This is a side view of the telescopic head of the present invention.

[0041] Figure label:

[0042] 100. Packaging bags;

[0043] 1. Workbench; 11. Downward expansion joint; 111. Pressing component; 12. Fixed spindle; 13. Support;

[0044] 2. Electric turntable; 21. Chassis section; 22. Intermediate shaft section; 23. Top plate section; 231. Slide groove; 24. Rotary motor;

[0045] 3. Locking unit; 31. Locking element; 311. Lock groove; 312. Inclined surface; 32. Driving element; 321. Telescopic device; 322. Push block; 323. First spring;

[0046] 4. Side push mechanism; 41. Horizontal push telescopic device; 42. Support; 43. Side push rod; 431. Torsion spring; 44. Side push block; 441. Limiting part; 45. Guide kit;

[0047] 5. Clamping unit; 51. Fixed jaw; 511. Fixed clamping end; 512. Middle part; 513. Sliding end; 514. Return spring; 515. Guide groove; 52. Moving jaw; 521. Moving clamping end; 522. Sliding part; 523. Guide post; 53. Telescopic head; 531. Thrust spring; 532. Clamping roller; 54. Tamping component; 541. Second spring; 542. Hook; 543. Suction hole;

[0048] 6. Slide table; 61. Mother platform body; 611. Inclined block; 62. Daughter platform body; 621. Compression spring; 622. Guide groove;

[0049] 7. Clamping drive assembly; 71. Telescopic motor; 72. Linkage rod;

[0050] 8. Filling pipe; 81. Guide rod. Detailed Implementation

[0051] Embodiments of the present invention are described in detail below, with examples of the embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0052] The following is combined Figures 1 to 13 This invention describes an automatic barium sulfate packaging device and process.

[0053] like Figure 1 and Figure 2 As shown, an automatic barium sulfate packaging device of the present invention includes a workbench 1, an electric turntable 2, a clamping mechanism, a filling mechanism, a locking unit 3, and a side-pushing mechanism 4.

[0054] The electric turntable 2 includes a base 21, an intermediate shaft section 22, and a top plate 23. The base 21 is rotatably mounted on the worktable 1, and the top plate 23 is located above the base 21 and is fixedly connected to the base 21 via the intermediate shaft section 22. A rotary motor 24 is installed inside the worktable 1. The rotary motor 24 is connected to the base 21 via a gear pair to control the rotation of the base 21, thereby controlling the rotation of the electric turntable 2.

[0055] The workbench 1 has a feeding position, a filling position and a sealing position arranged sequentially along the circumference of the electric turntable 2, all of which are located on the side of the electric turntable 2.

[0056] The clamping mechanism is installed on the electric turntable 2. When the clamping mechanism rotates with the electric turntable 2 to the feeding position, it is used to clamp the incoming packaging bag 100 and transfer the packaging bag 100 to the subsequent filling position and sealing position.

[0057] Continue to refer to Figure 2 and Figure 3 The clamping mechanism includes two clamping units 5 arranged side-by-side along the tangential direction of the electric turntable 2. Each clamping unit 5 includes a fixed jaw 51 and a movable jaw 52. The fixed jaw 51 includes a fixed clamping end 511, a middle portion 512, and a sliding end 513. The fixed clamping end 511 is connected to the sliding end 513 via the middle portion 512. A groove 231 extending tangentially along the top plate portion 23 is provided on the top plate portion 23. The sliding end 513 is slidably fitted within the groove 231. Thus, the fixed jaws 51 in the two clamping units 5 can move closer together or further apart along the tangential direction of the electric turntable 2. The top plate portion 23 is fixedly mounted... There is a support block located between the two clamping units 5. The middle part 512 is connected to the support block through a return spring 514. The return spring 514 is used for the automatic reset of the fixed clamping jaw 51 after the sliding action. The moving clamping jaw 52 includes a moving clamping end 521 and a sliding part 522. The moving clamping end 521 and the fixed clamping end 511 are spaced apart from each other along the radial direction of the electric turntable 2. The sliding part 522 is integrally formed with the moving clamping end 521, and the sliding part 522 is slidably mounted on the middle part 512 along the radial direction of the electric turntable 2.

[0058] Continue to refer to Figures 2 to 8The clamping mechanism also includes a slide 6 located between the two clamping units 5. The slide 6 includes a mother platform 61 and a daughter platform 62. The mother platform 61 is slidably mounted on the top plate 23 along the radial direction of the electric turntable 2. The daughter platform 62 is slidably mounted on the mother platform 61 along the radial direction of the electric turntable 2, and the two are connected by a compression spring 621. The daughter platform 62 is provided with a guide groove 622 extending tangentially along the electric turntable 2. The sliding part 522 is fixedly provided with a guide post 523 that is slidably fitted in the guide groove 622. When the slide table 6 slides radially along the electric turntable 2, the sub-stage body 62 can push the movable gripper 52 to slide through the guide groove 622 and the guide post 523. The movable gripping end 521 of the movable gripper 52 gradually approaches the fixed gripping end 511 of the fixed gripper 51 until the movable gripping end 521 presses the opening of the packaging bag 100 against the fixed gripping end 511. At this point, the movable gripper 52 and the fixed gripper 51 have achieved the clamping of the packaging bag 100. When the fixed grippers 51 of the two clamping units 5 move closer or further apart, the movable gripper 52 can slide in the guide groove 622 through the guide post 523. Through the setting of the guide groove 622, the slide table 6 not only achieves the connection with the movable gripper 52, which facilitates the clamping of the packaging bag 100, but also provides room for the movable gripper 52 to slide alone, ensuring the synchronous movement of the movable gripper 52 and the fixed gripper 51.

[0059] Two symmetrical inclined blocks 611 are formed on the mother platform 61, located on both sides of the two clamping units 5, with each inclined block 611 corresponding to the nearest clamping unit 5. When the movable jaw 52 and the fixed jaw 51 clamp the packaging bag 100, the mother platform 61 continues to slide, while the daughter platform 62 and the movable jaw 52 cannot continue to slide due to the obstruction of the fixed jaw 51. At this time, the mother platform 61 and the daughter platform 62 slide relative to each other, the compression spring 621 is compressed and the elastic force increases, and the elastic force is transmitted to the movable clamping end 521 through the daughter platform 62 and the movable jaw 52, ​​which increases the clamping force of the movable clamping end 521 and improves the firmness of clamping the packaging bag 100. Subsequently, the inclined blocks 611 approach the corresponding fixed grippers 51 until they are squeezed. The two inclined blocks 611 cause the fixed grippers 51 of the two clamping units 5 to move inward toward each other. Under the cooperation of the components, the two clamping units 5 move closer to each other, and the two clamping units 5 squeeze the opening of the packaging bag 100 inward, so that the middle part of the opening of the packaging bag 100 expands to both sides, forming a space similar to an ellipse or a circle. This process is equivalent to opening the opening of the packaging bag 100, which facilitates feeding. In other embodiments, a suction cup mechanism can also be used to suction the opening of the packaging bag 100 from both sides to assist in pulling it open outward. The use of this mechanism in conjunction with the clamping units 5 can make the opening of the bag more effective.

[0060] Main reference Figure 2The electric turntable 2 is equipped with a clamping drive assembly 7, which can drive the platform body 61 to slide. In this embodiment, the clamping drive assembly 7 includes a telescopic motor 71 and a connecting rod 72. The telescopic motor 71 is mounted on the chassis 21 and can extend and retract vertically. The two ends of the connecting rod 72 are respectively hinged to the platform body 61 and the telescopic end of the telescopic motor 71. When the telescopic motor 71 extends or retracts, the connecting rod 72 can perform planar motion, thereby driving the platform body 61 to slide or return to its original position. In other embodiments, the clamping drive assembly 7 can also use a power motor or a gear rack to control the sliding and returning of the platform body 61.

[0061] Continue to refer to Figure 1 and Figure 9 The filling mechanism is located at the filling position of the workbench 1. The filling mechanism has a filling tube 8, which can move up and down. Thus, when the two clamping units 5 clamp and transfer the packaging bag 100 to the filling position, the filling tube 8 can extend downward into the packaging bag 100 from the open bag opening to achieve the purpose of docking.

[0062] Two locking units 3 are located on both sides of the filling tube 8. Each locking unit 3 includes a locking element 31 and a driving element 32. A guide rod 81 extending radially is fixed to the outer wall of the filling tube 8. The locking element 31 is slidably sleeved on the guide rod 81. The locking element 31 has a crescent-shaped locking groove 311 that is adapted to the filling tube 8. When the two locking elements 31 approach each other, the locking groove 311 can fasten the bag opening of the packaging bag 100 to the outer wall of the filling tube 8. This prevents the formation of an annular gap between the outer periphery of the filling tube 8 and the bag opening, thereby preventing the leakage of powdered material from the outer periphery of the filling tube 8 during filling and protecting the working environment. At the same time, since the inner surface of the bag opening is attached to the outer wall of the filling tube 8, it is difficult for powdered material to enter and adhere to the inner surface of the bag opening, thereby reducing the contamination of the inner surface of the bag opening and ensuring the subsequent sealing effect of the bag opening.

[0063] The driving component 32 includes a telescopic device 321 and a first elastic element. The telescopic device 321 is mounted on the filling tube 8 and has a push block 322 at its output end. The telescopic device 321 controls the push block 322 to slide up and down. The top of the locking element 31 has an inclined surface 312. When the push block 322 slides down, it can contact the inclined surface 312 and squeeze the locking element 31 through the inclined surface 312, causing the locking element 31 to slide towards the filling tube 8, thereby bringing the two locking elements 31 closer to each other. The first elastic element can be a first spring 323. The first spring 323 is sleeved on the guide rod 81, and its two ends are fixedly connected to the guide rod 81 and the locking element 31, respectively. After filling is completed, the telescopic device 321 can control the push block 322 to retract upwards. The squeezing effect of the push block 322 on the inclined surface 312 and the locking element 31 gradually disappears, and the first spring 323 can control the locking element 31 to reset, that is, the two locking elements 31 move away from each other and return to their original positions. At this time, the locking groove 311 no longer fastens the bag opening, which makes it easier for the filling tube 8 to be pulled upward and detached from the packaging bag 100.

[0064] Continue to refer to Figure 2 , Figure 5 and Figure 6 During filling, if the clamping surface of the clamping unit 5 is far from the locking member 31, the portion of the bag opening between the locking member 31 and the clamping unit 5 will not be clamped, resulting in incomplete sealing and potential leakage of powdery materials. If the clamping surface of the clamping unit 5 is close to the locking member 31, the locking member 31 may touch the clamping unit 5 when fastening the bag opening; specifically, this could be the fixed jaw 51 or the movable jaw 52. This causes interference between the fixed jaw 51, the movable jaw 52, ​​and the locking member 31.

[0065] To overcome the above-mentioned defects, both the fixed clamping end 511 of the fixed jaw 51 and the movable clamping end 521 of the movable jaw 52 are slidably fitted with telescopic heads 53. The sliding direction of the telescopic heads 53 is along the tangent of the electric turntable 2. The telescopic heads 53 are connected to the fixed clamping end 511 or the movable clamping end 521 through a thrust spring 531. Clamping rollers 532 are rotatably mounted on the telescopic heads 53.

[0066] When the two locking members 31 approach each other, they can squeeze and hold the clamping roller 532 from the side. Due to its smooth outer surface and rotatable properties, the clamping roller 532 does not obstruct the sliding of the locking member 31. Instead, under the action of the squeezing force, it retracts towards the fixed clamping claw 51 or the movable clamping claw 52. This avoids interference with the locking member 31 and affects its sliding, while ensuring that the clamping unit 5 and the locking member 31 are connected sequentially, avoiding the formation of unclamped parts between them. This ensures that the opening of the packaging bag 100 can be fully clamped, thereby preventing the spillage of powdery materials during filling.

[0067] Continue to refer to Figures 2-7If the material being filled is in block form, it may accumulate at the bag opening area, and its sharp edges may affect the subsequent sealing of the bag.

[0068] To this end, a guide plate is integrally provided on the fixed clamping end 511. The guide plate has an inclined, extended, and closed guide groove 515. The guide grooves 515 in the two clamping units 5 are symmetrically arranged in an inverted V-shape. A guide post is slidably fitted inside the guide groove 515. A tamping element 54 is connected to the guide post. The tamping element 54 is hook-shaped, and the two tamping elements 54 are symmetrical to each other. A second elastic element is clamped between the tamping element 54 and the fixed clamping jaw 51. The second elastic element can be a second spring 541. The top end of the second spring 541 is fixedly connected to the tamping element 54, and the bottom end of the second spring 541 is in pressing contact with the fixed clamping end 511, or the bottom end of the second spring 541 is also fixedly connected to the fixed clamping end 511. The second spring 541 applies an upward elastic force to the tamping element 54.

[0069] A support is fixed to the sealing position of the workbench 1, and a downward pressure telescopic device 11 is installed on the support. The output end of the downward pressure telescopic device 11 is equipped with a pressure member 111 located above the tamping member 54. The downward pressure telescopic device 11 is used to control the downward movement of the pressure member 111, so that the pressure member 111 gradually approaches the tamping member 54. When the pressure member 111 squeezes the tamping member 54, the tamping member 54 slides downward at an angle along the guide groove 515 until the hook part 542 of the tamping member 54 inserts into the center of the bag opening of the packaging bag 100. During the process of the tamping member 54 sliding from both sides to the center, the tamping member 54 can tamp the lumpy material accumulated at the bag opening, so that these lumpy materials are dispersed, and the edges of the lumpy materials are prevented from occupying the bag opening position, thereby ensuring the sealing effect of the subsequent packaging bag 100.

[0070] Continue to refer to Figures 1-12The side-pushing mechanism 4 is located above the electric turntable 2 and opposite to the pressure member 111. The side-pushing mechanism 4 includes a horizontal pusher 41, a support 42, a side push rod 43, and a side push block 44. A fixed spindle 12 is fixed on the worktable 1, which passes through the base 21, the intermediate shaft section 22, and the top plate 23 from bottom to top. A support 13 is fixed at the top of the fixed spindle 12, located above the electric turntable 2. The support 13 is fixed on the worktable 1, and its height position is offset from the movement trajectory of the sliding end 513 on the electric turntable in vertical space. When the turntable rotates, the sliding end 513 is within the stroke range of the slide groove 231, and its rotation plane does not overlap with the support plane of the support 13, thereby ensuring that the two do not interfere with each other. The horizontal pusher 41 is installed on the support 13, and the output end of the horizontal pusher 41 is radially toward the pressure member 111 along the electric turntable 2. Support 42 is fixed to the output end of the horizontal expansion joint 41. Two side push rods 43 are symmetrically arranged in a V-shape, with one end hinged to support 42. A torsional elastic element is connected between this end and support 42. The torsional elastic element can be a torsional spring 431, which is used to make the two side push rods 43 tend to move closer together. The other end of the side push rod 43 is hinged to a side push block 44. Two guide kits 45 are slidably mounted on the support 13 along the tangential direction of the electric turntable 2. The two side push blocks 44 are slidably inserted into the two guide kits 45 respectively.

[0071] After filling is completed, the clamping drive assembly 7 can control the mother body 61 to reset, the inclined block 611 gradually moves away from the fixed jaw 51, and the two clamping units 5 gradually reset under the action of the reset spring 514. That is, the two clamping units 5 move away from each other. At this time, the sliding ends 513 of the two fixed jaws 51 also move away from each other, and the gap between them increases, which facilitates the insertion of the side push block 44. Then, the horizontal extension device 41 extends, and under the action of the torsion spring 431, the two side push rods 43 maintain a close-to-each-other posture while moving outward. The side push rods 43 drive the side push block 44 to slide through the guide kit 45. Due to the close-to-each action of the side push rods 43, the side push block 44 will stably pass through the guide kit 45 without causing the guide kit 45 to slide along the tangential direction of the electric turntable 2. This avoids the side push block 44 changing position in the tangential direction of the electric turntable 2, allowing the side push block 44 to be accurately inserted between the sliding ends 513 of the two fixed jaws 51. The aforementioned separation of the two sliding ends 513 achieves avoidance of the side push block 44, avoiding mechanical interference.

[0072] The side push block 44 has a limiting part 441. When the side push block 44 passes between the sliding ends 513 of the two fixed jaws 51, the limiting part 441 is used to stop against the guide kit 45, preventing the side push block 44 from sliding within the guide kit 45. At this time, the two side push rods 43 will perform planar motion under the action of power, thereby driving the two side push blocks 44 away from each other. The side push block 44 pushes the sliding ends 513 of the fixed jaws 51 outward along the tangential direction of the electric turntable 2, so that the two fixed jaws 51 move away from each other. At this time, the two fixed grippers 51 will drive the two tamping members 54 to move away from each other. The hooks 542 of the two tamping members 54 slide in a straight line from the center of the bag opening to both sides. During the sliding, the hooks 542 of the two tamping members 54 can move the blocky material in the bag opening again, making it flat and not occupying the bag opening position. When the hooks 542 of the two tamping members 54 slide to both sides of the bag opening, the hooks 542 of the two tamping members 54 will tighten the edge of the bag opening respectively, so that the bag opening is in a straight and taut state, which facilitates the sealing of the bag opening. In this embodiment, a heat sealing machine or heat sealing pliers can be used to heat seal the bag opening of the packaging bag 100, or a strip sealing machine can be used to seal the bag opening with a strip. The sealing process is diverse and is a conventional technology in this field, which will not be described in detail here.

[0073] Continue to refer to Figures 3-8 The tamping element 54 is provided with an intermediate air chamber and an air suction hole 543. The intermediate air chamber is located inside the tamping element 54 and can be connected to a negative pressure suction mechanism. The air suction hole 543 is located on the surface of the tamping element 54 and communicates with the intermediate air chamber. When the hooks 542 of the two tamping elements 54 slide from the center of the bag opening to both sides, the negative pressure suction mechanism can control the air suction hole 543 to suck air through the intermediate air chamber. The air suction hole 543 removes material impurities, dust, etc. at the bag opening, ensuring the subsequent sealing or sealing effect of the bag opening. Of course, when the hooks 542 of the two tamping elements 54 slide from both sides towards the center of the bag opening, the air suction hole 543 can also remove impurities and dust at the bag opening. Alternating suction can improve the impurity removal effect and ensure sealing.

[0074] refer to Figures 1 to 12 The working steps of the automatic barium sulfate packaging device of the present invention are as follows:

[0075] The first step is bag feeding and clamping. The packaging bag 100 is fed into the feeding position and placed between the fixed clamp 51 and the movable clamp 52. The clamping drive assembly 7 controls the movable clamp 52 to slide relative to the fixed clamp 51 through the slide table 6 until the movable clamping end 521 presses the bag opening of the packaging bag 100 against the fixed clamping end 511. Thus, the movable clamp 52 and the fixed clamp 51 achieve clamping of the packaging bag 100. Then, the mother body 61 continues to slide, and the inclined block 611 squeezes the corresponding fixed clamp 51. The two fixed clamps 51 move inward, thereby moving the two clamping units 5 inward. The two clamping units 5 squeeze the bag opening of the packaging bag 100 inward, so that the bag opening of the packaging bag 100 will open and become elliptical or round, which facilitates feeding.

[0076] The second step is seamless filling. The electric turntable 2 drives the clamping mechanism to rotate, causing the clamping mechanism to enter the filling position. Then, the filling tube 8 is inserted into the open bag opening. The drive unit 32 controls the two locking members 31 to move closer to each other. The locking groove 311 fastens the bag opening of the packaging bag 100 to the outer wall of the filling tube 8, thereby eliminating the annular gap between the outer periphery of the filling tube 8 and the bag opening. This prevents the powdered material from leaking from the outer periphery of the filling tube 8 during filling, protecting the working environment. It also prevents the powdered material from adhering to the inner surface of the bag opening, reducing contamination of the inner surface of the bag opening and ensuring the subsequent sealing effect of the bag opening.

[0077] The third step involves tamping the material. After filling, the electric turntable 2 uses a clamping mechanism to transfer the packaging bag 100 to the sealing position. The downward pressure telescopic device 11 controls the downward movement of the pressure member 111, which squeezes the tamping member 54. The hooks 542 of the tamping member 54 move downward from both sides of the packaging bag 100 toward the center of the bag opening. In this way, the tamping member 54 can tamp the lumpy material accumulated at the bag opening, dispersing these lumpy materials and preventing the sharp edges of the lumpy materials from occupying the bag opening position, thus ensuring the sealing effect of the subsequent packaging bag 100.

[0078] The fourth step involves bag dust removal. The clamping drive assembly 7 controls the mother body 61 to reset, and the inclined block 611 gradually moves away from the fixed clamp 51. Under the action of the reset spring 514, the two clamping units 5 move away from each other and reset. Then, the horizontal push telescopic device 41 extends, and the side push rod 43 drives the side push block 44 to slide. The side push block 44 stably passes through the guide kit 45 and gradually inserts between the sliding ends 513 of the two fixed clamps 51. When the limiting part 441 abuts against the guide kit 45, the two side push rods 43 drive the two side push blocks 44 to move away from each other under the action of power. The two side push blocks 44 push the two fixed clamps 51 to move away from each other. Then, the hooks 542 of the two tamping members 54 slide linearly from the center of the bag opening to both sides. During the sliding, the hooks 542 of the two tamping members 54 can move the blocky material in the bag opening again, making it flat and not occupying the bag opening position. At the same time, the suction hole 543 can suck up the dust at the bag opening to ensure the subsequent sealing effect. When the hooks 542 of the two tamping elements 54 slide to both sides of the bag opening, the hooks 542 of the two tamping elements 54 pull the edge of the bag opening tight, so that the bag opening is in a straight and taut state, which facilitates the sealing of the bag opening.

[0079] In this embodiment, the telescopic device 321, the downward telescopic device 11, and the horizontal telescopic device 41 can all be electric push rods, hydraulic rods, or cylinders, etc. The number of clamping mechanisms is not limited to one, but can also be multiple evenly arranged along the circumference of the electric turntable 2, thus improving the transfer efficiency of the packaging bag 100.

[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic barium sulfate packaging device, comprising a workbench (1) and an electric turntable (2) mounted on the workbench (1), characterized in that, It also includes a clamping mechanism, a filling mechanism, and a locking unit (3). An electric turntable (2) is mounted on the workbench (1), and the clamping mechanism is mounted on the electric turntable (2) for clamping the packaging bag (100). The filling mechanism is located on the workbench (1) and beside the electric turntable (2). The filling mechanism has a filling tube (8) that can extend downwards into the opening of the packaging bag (100). There are two locking units (3) located on both sides of the filling tube (8). Each locking unit (3) includes a locking element (…). 31) and drive (32), locking (31) is slidably mounted on filling tube (8) along the radial direction of filling tube (8), locking (31) is provided with a crescent-shaped locking groove (311) that fits the filling tube (8), when the two locking (31) approach each other, the locking groove (311) can fasten the bag mouth of the packaging bag (100) to the outer wall of filling tube (8); drive (32) is mounted on filling tube (8) and used to drive the locking (31) to slide, the clamping mechanism The device includes two clamping units (5) arranged side by side tangentially along the electric turntable (2). Each clamping unit (5) includes a fixed clamping jaw (51) and a movable clamping jaw (52) spaced apart from each other. The fixed clamping jaw (51) is mounted on the electric turntable (2), and the movable clamping jaw (52) is slidably mounted on the fixed clamping jaw (51) along the radial direction of the electric turntable (2). The electric turntable (2) is provided with a clamping drive assembly (7) for driving the movable clamping jaw (52) to slide, so that the movable clamping jaw (52) can approach the fixed clamping jaw (51). The bag opening of the packaging bag (100) is clamped. Both the fixed clamp (51) and the movable clamp (52) are elastically slidably connected with telescopic heads (53). The telescopic heads (53) are rotatably equipped with clamping rollers (532). When the two locking parts (31) approach each other, they can squeeze the clamping rollers (532) laterally, causing the clamping rollers (532) to drive the telescopic heads (53) to retract towards the fixed clamp (51) or the movable clamp (52), thereby leaving clearance space for the locking parts (31).

2. An automatic barium sulfate packaging device according to claim 1, characterized in that, The driving component (32) includes a telescopic device (321) and a first elastic member. The telescopic device (321) is mounted on the filling tube (8) and has a push block (322) at its output end. At least one of the push block (322) and the locking member (31) has an inclined surface (312) so that when the push block (322) slides, the inclined surface (312) can squeeze the locking member (31) and make it slide. The first elastic member connects the locking member (31) and the filling tube (8) and is used to make the locking member (31) tend to separate from the filling tube (8).

3. An automatic barium sulfate packaging device according to claim 1, characterized in that, The fixed gripper (51) is tangentially and elastically slidably connected to the electric turntable (2) along the electric turntable (2). The clamping mechanism also includes a slide (6) slidably mounted on the electric turntable (2) along the radial direction of the electric turntable (2). The movable gripper (52) is tangentially mounted on the slide (6). The clamping drive assembly (7) is connected to the slide (6) to drive the slide (6) to slide. The slide (6) is provided with inclined blocks (611) that are equal in number and correspond one-to-one with the clamping units (5). The inclined blocks (611) are used to squeeze the fixed gripper (51) of the corresponding clamping unit (5) during the sliding of the slide (6). The fixed gripper (51) makes the two clamping units (5) approach each other.

4. An automatic barium sulfate packaging device according to claim 3, characterized in that, The slide (6) includes a mother stage (61) and a daughter stage (62). The mother stage (61) is slidably mounted on the electric turntable (2) along the radial direction. The clamping drive assembly (7) is connected to the mother stage (61). The daughter stage (62) is elastically slidably connected to the mother stage (61) along the radial direction of the electric turntable (2). The moving gripper (52) is slidably mounted on the daughter stage (62) along the tangential direction of the electric turntable (2).

5. An automatic barium sulfate packaging device according to claim 3, characterized in that, A tamping element (54) is slidably mounted on the fixed jaw (51). The sliding directions of the tamping elements (54) in the two clamping units (5) are inclined and symmetrical to each other. A second elastic element is clamped between the tamping element (54) and the fixed jaw (51). The second elastic element applies an upward elastic force to the tamping element (54). A downward pressure telescopic device (11) is installed on the workbench (1) next to the electric turntable (2). The output end of the downward pressure telescopic device (11) is provided with a pressure element (111) above the tamping element (54). The downward pressure telescopic device (11) is used to control the pressure element (111) to move down and press the tamping element (54) so ​​that the tamping element (54) is inserted into the bag opening of the packaging bag (100).

6. An automatic barium sulfate packaging device according to claim 5, characterized in that, It also includes a side push mechanism (4) located above the electric turntable (2) and opposite to the pressure member (111). The side push mechanism (4) includes a horizontal push telescopic device (41) mounted on the worktable (1), a support (42) fixed to the output end of the horizontal push telescopic device (41), two side push rods (43) hinged to the support (42), and a side push block (44) hinged to the side push rods (43). The worktable (1) is slidably mounted along the tangential direction of the electric turntable (2). There is a guide kit (45), and a side push block (44) is slidably inserted inside the guide kit (45). The side push block (44) is used to pass between the sliding ends (513) of the two fixed jaws (51) when the flat push telescopic device (41) is extended. The side push block (44) has a limiting part (441). The limiting part (441) is used to push the fixed jaws (51) outward along the tangential direction of the electric turntable (2) when it is stopped against the guide kit (45).

7. An automatic barium sulfate packaging device according to claim 6, characterized in that, A torsional elastic element is connected between the side push rod (43) and the support (42). The torsional elastic element is used to make the two side push rods (43) tend to move closer together. The tamping member (54) is provided with a suction hole (543). The suction hole (543) is used to connect to an external negative pressure suction mechanism to remove dust from the opening of the packaging bag (100).

8. A packaging process for an automatic barium sulfate packaging device as described in claim 7, characterized in that, It includes the following steps: S1. The packaging bag (100) is fed into the feeding position and placed on the clamping mechanism. The clamping mechanism opens the bag opening of the packaging bag (100) and turns it into an oval or round shape. S2. The electric turntable (2) drives the clamping mechanism to rotate, so that the clamping mechanism enters the filling position. The drive unit (32) controls the two locking parts (31) to approach each other, and the locking groove (311) fastens the bag opening of the packaging bag (100) to the outer wall of the filling tube (8). S3. The electric turntable (2) transfers the packaging bag (100) to the sealing position through the clamping mechanism. The downward telescopic device (11) controls the pressure member (111) to move down. The pressure member (111) squeezes the tamping member (54) so ​​that the tamping member (54) is inserted into the bag opening of the packaging bag (100). S4. The clamping drive assembly (7) controls the mother body (61) to reset, and the clamping mechanism is reset at the same time. Then, the flat push telescopic device (41) extends. When the limiting part (441) stops on the guide kit (45), the two tamping parts (54) slide in a straight line from the center of the bag opening to both sides. When the two tamping parts (54) slide to both sides of the bag opening, they tighten the edge of the bag opening.

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