A feed metering packaging filling nozzle

Abstract

This utility model discloses a feed quantitative packaging filling nozzle. The filling nozzle is located below the discharge port of a feed quantitative bagging machine. The filling nozzle is detachably connected to the discharge port via multiple sets of quick-release components. Each quick-release component includes a first connecting block, a second connecting block below the first connecting block, a first connecting rod vertically positioned on the side of the first connecting block near the second connecting block, a second connecting rod vertically positioned on the side of the second connecting block near the first connecting block, a main insertion block near one end of the first connecting rod, and a main insertion hole recessed at the end of the second connecting rod near the first connecting rod for inserting the main insertion block. The quick-release component also includes a connecting rod splicing assembly for detachably connecting the main insertion block within the main insertion hole. By replacing traditional bolt connections with the cooperation of the first connecting block, the second connecting block, the main insertion block, and the main insertion hole, the disassembly and assembly process of the filling nozzle is significantly simplified. There is no need to loosen bolts one by one, greatly reducing maintenance time.

Description

Technical Field

[0001] This utility model relates to the field of feed filling technology, specifically to a feed quantitative packaging filling nozzle. Background Technology

[0002] In the feed production and packaging process, the filling nozzle is the core component of the feed metering bagging machine, which conveys feed to the packaging bag. Its working condition directly affects packaging efficiency and feed hygiene. Since feed is mostly in granular or powder form, the inner wall of the filling nozzle is prone to wear due to friction between feed particles during long-term use. At the same time, feed residue will gradually accumulate (especially in high humidity, it is prone to clumping), which not only affects the filling accuracy but may also breed microorganisms and cause feed contamination. Therefore, it is necessary to disassemble, clean, or replace it regularly to ensure packaging quality.

[0003] However, the connection between traditional filling nozzles and packaging equipment is mostly a bolt-fixed structure: the filling nozzle is rigidly connected to the feeding end of the equipment by multiple bolts distributed around the circumference. When disassembling, tools such as wrenches are needed to loosen and remove the bolts one by one, which is a cumbersome operation.

[0004] Therefore, there is an urgent need for a feed filling nozzle that can be quickly disassembled to solve the problem of the filling nozzle being inconvenient to disassemble. Summary of the Invention

[0005] The main purpose of this utility model is to provide a feed quantitative packaging filling nozzle, which aims to solve the technical problem that the filling nozzle is inconvenient to disassemble and assemble in the prior art.

[0006] To achieve the above objectives, the present invention proposes a feed quantitative packaging filling nozzle, including a feed quantitative bagging machine, wherein a filling nozzle is provided below the discharge port of the feed quantitative bagging machine, and the filling nozzle is detachably connected to the discharge port through multiple sets of quick-release components;

[0007] The quick-release assembly includes a first connecting block, a second connecting block below the first connecting block, a first connecting rod vertically arranged on the side of the first connecting block near the second connecting block, a second connecting rod vertically arranged on the side of the second connecting block near the first connecting block, a main insert block near one end of the first connecting rod, and a main insertion hole for the main insert block to be inserted at one end of the second connecting rod near the first connecting rod. The quick-release assembly also includes a connecting rod splicing assembly for detachably connecting the main insert block to the main insertion hole.

[0008] The first connecting block is fixed to the outer wall of the discharge port of the feed quantitative bagging machine, and the second connecting block is fixed to the outer wall of the filling nozzle.

[0009] Preferably, the main insert has a transverse through-hole, the connecting rod assembly includes two connecting inserts slidably disposed in the through-hole, the inner wall of the main insert has a transversely recessed annular slot for the inserts to extend into, and the connecting rod assembly further includes a pushing component for driving the two connecting inserts away from each other and into the annular slot, and a retracting component for driving the two connecting inserts to retract into the through-hole.

[0010] Preferably, the wall of the receiving through hole is recessed towards the side near the first connecting rod to form a shrinkage groove. The shrinkage assembly includes a stop plate disposed in the middle of the push groove. Two sliders are slidably disposed in the shrinkage groove. The stop plate is located between the two sliders. The two sliders are connected to the two connecting blocks in a one-to-one correspondence. A spring is connected between each slider and the stop plate. The spring is used to drive the connecting block to shrink into the receiving through hole.

[0011] Preferably, the pushing assembly includes a partition block and a pry bar. The bottom of the main insertion hole is recessed to form a sliding hole. The partition block is slidably disposed in the sliding hole. A vertical rod is provided at one end of the partition block near the sliding hole. A second through hole is formed laterally on the side wall of the second connecting rod and communicates with the sliding hole. The pry bar is rotatably connected to the second through hole via a pivot. One end of the pry bar extends into the sliding hole and the other end extends out of the second connecting rod. The outer wall of the end of the pry bar located in the sliding hole is recessed to form a slide rail extending along the extension direction of the pry bar. The end of the vertical rod away from the partition block is slidably connected to the slide rail. The diameter of the main insertion hole is sufficient to allow the end of the pry bar located in the sliding hole to rotate within the main insertion hole.

[0012] The main insert block has a first through hole at the end opposite to the first connecting rod, which is connected to the receiving through hole and is used for the partition block to extend into. The first through hole is located between the two connecting insert blocks.

[0013] The side of the two connecting blocks that are close to each other is arc-shaped, and the end of the separator block that is away from the sliding hole is arc-shaped.

[0014] Preferably, a limiting insertion hole is formed transversely through the second connecting rod, and the middle part of the limiting insertion hole is connected to the second through hole. A limiting rod is detachably inserted into the second through hole. The limiting rod is located below the pry bar when the partition block extends into the receiving through hole and is in clearance fit with the pry bar. It is located on the side of the rotating shaft close to the vertical rod. Pins are provided at both ends of the limiting rod extending out of the limiting insertion hole.

[0015] Preferably, the filling nozzle is provided with a bag clamping assembly for clamping the packaging bag. The bag clamping assembly includes two jaws symmetrically hinged to the outer wall of the filling nozzle for clamping the packaging bag. A cylinder is laterally hinged between the two jaws. The cylinder is used to drive the two jaws to move toward or away from the filling nozzle.

[0016] Preferably, a guide sleeve for preventing material splashing is connected between the filling nozzle and the discharge port of the feed metering bagging machine.

[0017] Preferably, the guide sleeve has a through-end structure and is made of flexible material. One end of the guide sleeve is fitted onto the end of the filling nozzle near the discharge port of the feed quantitative bagging machine, and the other end of the guide sleeve away from the filling nozzle is fitted onto the outside of the discharge port of the feed quantitative bagging machine through a shrinking structure.

[0018] Preferably, the end of the flow guide sleeve opposite to the filling nozzle is folded and sewn with a hollow rolled edge. The shrinking structure includes a drawstring that is slidably disposed inside the rolled edge. Two perforations connected to the inside of the rolled edge are formed on the rolled edge, and the two ends of the drawstring extend out from the perforations one to one.

[0019] Preferably, protective rings are distributed on the two perforations, and anti-detachment blocks are provided at both ends of the drawstring extending out of the perforation to prevent the drawstring from falling off the rolled edge. The rolled edge inside the guide sleeve is covered with an anti-slip layer.

[0020] In this invention, the traditional bolt connection is replaced by the cooperation of the first connecting block, the second connecting block, the main insert block, and the main insert hole, significantly simplifying the assembly and disassembly process of the filling nozzle. Operators only need to align the main insert block with the main insert hole and insert it, then lock it using the connecting rod assembly to complete the installation. Disassembly is performed by reversing the operation, eliminating the need to loosen bolts one by one, greatly reducing maintenance time and improving production efficiency. Simultaneously, the modular design reduces reliance on specialized tools, allowing ordinary workers to complete the operation and minimizing equipment downtime. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the quick-assembly and disassembly component structure of this utility model;

[0024] Figure 3 This is a partial structural diagram of the quick-assembly and disassembly component of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the main insert block of this utility model without being inserted into the main insert hole;

[0026] Figure 5 This is a schematic diagram of the structure of the main insert block of this utility model inserted into the main insert hole;

[0027] Figure 6 This is a schematic diagram of the flow guide sleeve structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the bag clamping assembly structure of this utility model.

[0029] Explanation of icon numbers:

[0030] 1. Feed quantitative bagging machine; 2. Guide sleeve; 21. Edge curling; 3. Drawstring; 4. Protective ring; 5. Anti-detachment block; 6. Filling nozzle; 7. Quick disassembly assembly; 71. First connecting block; 72. Second connecting block; 73. First connecting rod; 74. Second connecting rod; 74a. Main insertion hole; 74b. Annular slot; 74c. Sliding hole; 74d. Second through hole; 74e. Limiting insertion hole; 75. Main insertion block; 75a. Receiving through hole; 75b. First through hole; 75c. Shrinkage groove; 76. Support plate; 77. Connecting block; 78. Slider; 79. Spring; 710. Divider block; 711. Vertical rod; 712. Pry bar; 712a. Slide rail; 713. Rotating shaft; 714. Limiting rod; 715. Pin; 8. Bag clamping assembly; 81. Gripper; 82. Cylinder.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a feed quantitative packaging filling nozzle.

[0038] Please refer to Figures 1 to 7 The feed quantitative packaging filling nozzle 6 includes a feed quantitative bagging machine 1. The filling nozzle 6 is provided below the discharge port of the feed quantitative bagging machine 1. The filling nozzle 6 is detachably connected to the discharge port through multiple sets of quick-release components 7.

[0039] The quick-release assembly 7 includes a first connecting block 71, a second connecting block 72 below the first connecting block 71, a first connecting rod 73 vertically arranged on the side of the first connecting block 71 near the second connecting block 72, a second connecting rod 74 vertically arranged on the side of the second connecting block 72 near the first connecting block 71, a main insertion block 75 near one end of the first connecting rod 73, and a main insertion hole 74a recessed at one end of the second connecting rod 74 near the first connecting rod 73 for the main insertion block 75 to be inserted. The quick-release assembly 7 also includes a connecting rod splicing assembly for detachably connecting the main insertion block 75 to the main insertion hole 74a.

[0040] The first connecting block 71 is fixed to the outer wall of the discharge port of the feed quantitative bagging machine 1, and the second connecting block 72 is fixed to the outer wall of the filling nozzle 6.

[0041] In this invention, the traditional bolt connection is replaced by the cooperation of the first connecting block 71, the second connecting block 72, the main insert block 75, and the main insert hole 74a, significantly simplifying the assembly and disassembly process of the filling nozzle 6. Operators only need to align the main insert block 75 with the main insert hole 74a and insert it, then lock it using the connecting rod assembly to complete the installation. Disassembly is performed by reversing the operation, eliminating the need to loosen bolts one by one, greatly reducing maintenance time and improving production efficiency. Simultaneously, the modular design reduces reliance on specialized tools, allowing ordinary workers to complete the operation and reducing equipment downtime.

[0042] Please refer to the appendix. Figure 4-5 The main insertion block 75 has a transverse through-hole 75a. The connecting rod splicing assembly includes two connecting blocks 77 slidably disposed in the through-hole 75a. The inner wall of the main insertion hole 74a has a transversely recessed annular slot 74b for the insertion blocks to extend into. The connecting rod splicing assembly also includes a pushing component for driving the two connecting blocks 77 away from each other and into the annular slot 74b, and a retracting component for driving the two connecting blocks 77 to retract into the through-hole 75a.

[0043] The design of the receiving through hole 75a of the main insert 75 and the connecting insert 77, together with the annular slot 74b, achieves a double locking of the filling nozzle 6. When the main insert 75 is inserted into the main insert hole 74a, the pushing component drives the connecting insert 77 to expand outward and lock into the annular slot 74b, forming a circumferential clamping force to ensure the stability of the connection; while the shrinking component automatically retracts the connecting insert 77 back into the receiving through hole 75a during disassembly, allowing the main insert 75 to be easily pulled out. This "expansion-clamping-shrinking" linkage mechanism not only ensures the sealing and vibration resistance of the filling nozzle 6 during operation, but also avoids the loosening problem caused by long-term wear of traditional bolt connections.

[0044] Please refer to the appendix. Figure 4-5 The wall of the receiving through hole 75a is recessed towards the side near the first connecting rod 73 to form a shrinkage groove 75c. The shrinkage assembly includes a stop plate 76 disposed in the middle of the push groove. Two sliders 78 are slidably disposed in the shrinkage groove 75c. The stop plate 76 is located between the two sliders 78. The two sliders 78 are connected to the two connecting blocks 77 in a one-to-one correspondence. A spring 79 is connected between each slider 78 and the stop plate 76. The spring 79 is used to drive the connecting block 77 to shrink into the receiving through hole 75a.

[0045] The combined design of the retraction groove 75c, slider 78, and spring 79 fully automates the retraction process of the connecting plug 77. When the pushing component releases the pressure on the connecting plug 77, the elastic potential energy of the spring 79 drives the slider 78 to slide along the retraction groove 75c, causing the connecting plug 77 to retract synchronously into the receptacle hole 75a, requiring no manual intervention. This design not only simplifies the disassembly process but also ensures that the connecting plug 77 remains retracted when not in operation through the preload of the spring 79, preventing accidental unlocking due to accidental contact and improving operational safety.

[0046] Please refer to the appendix. Figure 4-5 The pushing assembly includes a partition block 710 and a pry bar 712. A sliding hole 74c is formed by a recess at the bottom of the main insertion hole 74a. The partition block 710 is slidably disposed within the sliding hole 74c. A vertical rod 711 is vertically provided at one end of the partition block 710 near the sliding hole 74c. A second through hole 74d, communicating with the sliding hole 74c, is formed laterally on the side wall of the second connecting rod 74. The pry bar 712 is rotatably connected within the second through hole 74d via a rotating shaft 713. One end of the pry bar 712 extends into the sliding hole 74c and the other end extends out of the second connecting rod 74. The outer wall of the end of the pry bar 712 located in the sliding hole 74c is recessed to form a slide rail 712a extending along the extension direction of the pry bar 712. The end of the vertical rod 711 facing away from the partition block 710 is slidably connected in the slide rail 712a. The diameter of the main insertion hole 74a is sufficient to allow the end of the pry bar 712 located in the sliding hole 74c to rotate within the main insertion hole 74c.

[0047] The main insert 75 has a first through hole 75b at the end opposite to the first connecting rod 73, which is connected to the receiving through hole 75a and is used for the partition block 710 to extend into. The first through hole 75b is located between the two connecting inserts 77.

[0048] The two connecting blocks 77 are arc-shaped on the side that is close to each other, and the end of the separator block 710 that is away from the sliding hole 74c is arc-shaped.

[0049] The push assembly's partition block 710 and pry bar 712 structure utilizes leverage to achieve rapid expansion of the connecting plug 77. The operator simply rotates the pry bar 712, which, via the vertical rod 711, pushes the partition block 710 along the sliding hole 74c towards the receiving through hole 75a. The arc-shaped end of the partition block 710 presses against the arc-shaped inner surface of the connecting plug 77, forcing it to expand outwards and engage with the annular slot 74b. This mechanical force-amplifying design reduces operating force, allowing for easy locking even with feed residue or slight corrosion. Simultaneously, the arc-shaped contact surface increases friction, preventing the connecting plug 77 from loosening due to vibration during operation.

[0050] Please refer to the appendix. Figure 2-5A limiting insertion hole 74e is formed horizontally through the second connecting rod 74. The middle part of the limiting insertion hole 74e is connected to the second through hole 74d. A limiting insertion rod 714 is detachably inserted into the second through hole 74d. The limiting insertion rod 714 is located below the pry bar 712 when the partition block 710 is inserted into the receiving through hole 75a and is in clearance fit with the pry bar 712. It is located on the side of the rotating shaft 713 near the vertical rod 711. The two ends of the limiting insertion rod 714 extending out of the limiting insertion hole 74e are provided with pins 715.

[0051] The engagement of the limiting insert 714 and the limiting socket 74e provides a mechanical limit for the pry bar 712, preventing accidental rotation during the operation of the filling nozzle 6 and thus connection failure. When the separator block 710 is fully inserted into the receiving through hole 75a, the limiting insert 714 inserts into the limiting socket 74e and is positioned below the pry bar 712, physically restricting the rotation range of the pry bar 712 and ensuring that the connecting insert 77 remains in an expanded state. This design effectively avoids safety hazards caused by equipment vibration or misoperation, and is particularly suitable for feed packaging environments with high-speed operation or significant vibration.

[0052] Please refer to the appendix. Figure 7 The filling nozzle 6 is provided with a bag clamping assembly 8 for clamping the packaging bag. The bag clamping assembly 8 includes two jaws 81 symmetrically hinged to the outer wall of the filling nozzle 6 for clamping the packaging bag. A cylinder 82 is laterally hinged between the two jaws 81. The cylinder 82 is used to drive the two jaws 81 to move toward or away from the filling nozzle 6.

[0053] The bag clamping assembly 8 features a cylinder 82 driving the gripper 81, enabling automatic clamping and releasing of the packaging bag. During the bagging process, the cylinder 82 pushes the gripper 81 to clamp the bag opening, preventing feed from spilling out during filling. After bagging, the cylinder 82 retracts, releasing the gripper 81, allowing the bag to be directly transferred to the sealing process. This automated design reduces the labor intensity of manual bag handling, improves packaging accuracy, and avoids bag shifting or damage that may occur with manual operation, making it particularly suitable for packaging powdered or small-particle feeds.

[0054] Please refer to the appendix. Figure 6 The filling nozzle 6 is connected to the discharge port of the feed metering bagging machine 1 by a guide sleeve 2 to prevent material splashing.

[0055] The guide sleeve 2 effectively solves the problem of splashing during feed filling. Made of flexible material, the guide sleeve 2 fits tightly against the connection between the filling nozzle 6 and the discharge port, forming a closed channel that guides the feed to fall vertically into the packaging bag, reducing the spillage of particles or dust and maintaining a clean working environment. Furthermore, the guide sleeve 2 also cushions the impact of the falling feed, reducing wear on the packaging bag and extending its service life.

[0056] Please refer to the appendix. Figure 6 The guide sleeve 2 has a through-end structure and is made of flexible material. One end of the guide sleeve 2 is fitted onto the end of the filling nozzle 6 near the discharge port of the feed quantitative bagging machine 1, and the other end of the guide sleeve 2 away from the filling nozzle 6 is fitted onto the outside of the discharge port of the feed quantitative bagging machine 1 through a shrinking structure.

[0057] The combination of the flexible guide sleeve 2 and the shrinking structure significantly improves the versatility of the equipment. By adjusting the shrinking structure (such as the drawstring 3 or elastic band), the opening of the guide sleeve 2 can adapt to different sized discharge ports, allowing it to be matched with various models of feed metering bagging machines 1 without replacing the entire guide sleeve 2. This design reduces the inventory cost of equipment parts, while the deformability of the flexible material allows the guide sleeve 2 to maintain a seal on curved or inclined discharge ports, ensuring anti-splashing effect under different operating conditions.

[0058] Please refer to the appendix. Figure 6 The end of the flow guide sleeve 2 facing away from the filling nozzle 6 is folded and sewn with a hollow rolled edge 21. The shrinking structure includes a drawstring 3 that is slidably disposed in the rolled edge 21. Two through holes are formed on the rolled edge 21 that are connected to the inside of the rolled edge 21. The two ends of the drawstring 3 extend out from the through holes one to one.

[0059] The shrinking structure of the rolled edge 21 and the drawstring 3 further optimizes the adaptability of the guide sleeve 2. Operators can precisely adjust the size of the guide sleeve 2's opening by tightening or loosening the drawstring 3, ensuring a tight fit against the outer wall of the discharge port and preventing feed leakage due to gaps. Simultaneously, the hollow structure of the rolled edge 21 enhances the flexibility of the guide sleeve 2, preventing breakage due to repeated stretching; the design of the perforation and drawstring 3 is simple and reliable, eliminating the need for complex adjustment mechanisms and reducing manufacturing costs and maintenance difficulty.

[0060] Please refer to the appendix. Figure 6 Protective rings 4 are provided on the two perforations respectively. Anti-detachment blocks 5 are provided at both ends of the drawstring 3 extending out of the perforation to prevent the drawstring 3 from falling off the rolled edge 21. The rolled edge 21 inside the guide sleeve 2 is covered with an anti-slip layer.

[0061] The detailed design of the protective ring 4, anti-slip block 5, and anti-slip layer comprehensively enhances the durability and reliability of the guide sleeve 2. The protective ring 4 protects the perforation edge from friction damage by the drawstring 3, extending the service life of the guide sleeve 2; the anti-slip block 5 prevents the drawstring 3 from slipping out of the perforation, ensuring the stability of the contraction structure; and the anti-slip layer (such as a rubber coating) increases the friction between the guide sleeve 2 and the discharge port, preventing it from shifting due to feed impact or vibration during operation, further enhancing the sealing effect. The combination of these three protective mechanisms allows the guide sleeve 2 to maintain stable performance even in harsh environments with high humidity and high dust.

[0062] The specific operation method of this utility model is as follows:

[0063] I. Installation of Filler Nozzle 6

[0064] Align the connection position: Lift the filling nozzle 6 so that the second connecting rod 74 on the second connecting block 72 is aligned with the first connecting rod 73 on the first connecting block 71 at the discharge port of the feed quantitative bagging machine 1, ensuring that the main insert block 75 (the end of the first connecting rod 73) and the main insert hole 74a (the end of the second connecting rod 74) are coaxially aligned.

[0065] Initial insertion and positioning: Push the filling nozzle 6 upward so that the main insert 75 is inserted along the main insertion hole 74a until the receiving through hole 75a of the main insert 75 and the annular slot 74b of the main insertion hole 74a are roughly on the same horizontal plane (at this time, the connecting insert 77 is completely retracted into the receiving through hole 75a due to the shrinking component, and does not obstruct the insertion).

[0066] Locking connector 77:

[0067] Operating the push assembly: Rotate the pry bar 712 on the side wall of the second connecting rod 74 (rotating around the pivot 713), and through the lever action, drive the vertical rod 711 to push the partition block 710 upward, so that the partition block 710 moves along the sliding hole 74c into the receiving through hole 75a.

[0068] The arc-shaped end of the separator 710 presses against the arc-shaped inner surface of the two connecting blocks 77, forcing the two connecting blocks 77 to slide to both sides along the receiving through hole 75a, and finally extend out of the receiving through hole 75a and be inserted into the annular slot 74b (at this time, the spring 79 is compressed by the slider 78 and is in a stored state).

[0069] Position of fixed pry bar 712: After the connecting plug 77 is fully inserted into the annular slot 74b, insert the limiting plug 714 laterally into the limiting plug hole 74e, so that it is located below the pry bar 712. The physical block restricts the reverse rotation of the pry bar 712, ensuring that the connecting plug 77 always remains in the expanded and locked state.

[0070] At this point, the filling nozzle 6 and the discharge port are securely connected via the quick-release assembly 7, completing the installation.

[0071] II. Disassembly of Filler Nozzle 6

[0072] Release the limit on pry bar 712: Pull out the limit plug 714 from the limit plug hole 74e laterally to release the rotation restriction on pry bar 712.

[0073] Release connecting plug 77: Rotate the pry bar 712 in the opposite direction to reset it around the pivot 713. The separator 710 returns to its original position along the sliding hole 74c under its own weight or with manual assistance, thus releasing the pressure on the connecting plug 77.

[0074] Shrink connecting plug 77: The spring 79 of the shrinking assembly releases its stored force, pushing the slider 78 to move along the shrinking groove 75c toward the abutment plate 76, causing the two connecting plugs 77 to shrink back into the through hole 75a (disengaging from the annular slot 74b).

[0075] Separate filling nozzle 6: Pull the filling nozzle 6 down to pull the main insert 75 out of the main insert hole 74a, and the first connecting block 71 and the second connecting block 72 are separated, completing the disassembly.

[0076] III. Operation of Bag Clamping Component 8

[0077] Clamping the packaging bag: Before filling the feed, start the cylinder 82. The piston rod of the cylinder 82 extends and pushes the two grippers 81 to rotate around the hinge point towards the filling nozzle 6 until the grippers 81 tightly clamp the opening of the packaging bag (to prevent feed from overflowing during filling).

[0078] Release the packaging bag: After filling is completed, the piston rod of cylinder 82 retracts, driving the two grippers 81 to rotate away from the filling nozzle 6, releasing the packaging bag, so that the filled packaging bag can be transferred to the next process (such as sealing).

[0079] IV. Installation and Adjustment of Guide Sleeve 2

[0080] Preliminary setup: Place the sleeve at one end of the guide sleeve 2 onto the end of the filling nozzle 6 near the discharge port (pre-set to avoid inconvenience after connecting the filling nozzle 6).

[0081] Adapting to the discharge port: Pull the other end of the guide sleeve 2 (the end opposite to the filling nozzle 6) to fit it onto the outer wall of the discharge port of the feed quantitative bagging machine 1. At this time, the rolled edge 21 (hollow structure) is in a relaxed state.

[0082] Tightening and fixing: Pull both ends of the draw rope 3 (extending from the perforation of the rolled edge 21) to retract the rolled edge 21, causing the guide sleeve 2 to tighten and fit against the outer wall of the discharge port; the anti-slip block 5 prevents the draw rope 3 from slipping out of the perforation, and the protective ring 4 protects the edge of the perforation from wear of the draw rope 3.

[0083] Loosen and adjust: If it is necessary to disassemble or adjust the guide sleeve 2, loosen the draw rope 3, and the rolled edge 21 will expand naturally, so that the guide sleeve 2 can be removed from the discharge port.

[0084] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A feed quantitative packaging filling nozzle, comprising a feed quantitative bagging machine, characterized in that, The feed quantitative bagging machine is equipped with a filling nozzle below the discharge port, and the filling nozzle is detachably connected to the discharge port through multiple sets of quick-release components; The quick-release assembly includes a first connecting block, a second connecting block below the first connecting block, a first connecting rod vertically arranged on the side of the first connecting block near the second connecting block, a second connecting rod vertically arranged on the side of the second connecting block near the first connecting block, a main insert block near one end of the first connecting rod, and a main insertion hole for the main insert block to be inserted at one end of the second connecting rod near the first connecting rod. The quick-release assembly also includes a connecting rod splicing assembly for detachably connecting the main insert block to the main insertion hole. The first connecting block is fixed to the outer wall of the discharge port of the feed quantitative bagging machine, and the second connecting block is fixed to the outer wall of the filling nozzle.

2. The feed quantitative packaging filling nozzle according to claim 1, characterized in that, The main insert has a transverse through-hole. The connecting rod assembly includes two connecting inserts that are slidably disposed in the through-hole. The inner wall of the main insert has a transversely recessed annular slot for the inserts to extend into. The connecting rod assembly also includes a pushing component for moving the two connecting inserts away from each other and into the annular slot, and a retracting component for moving the two connecting inserts into the through-hole.

3. The feed quantitative packaging filling nozzle according to claim 2, characterized in that, The wall of the receiving through hole is recessed towards the side near the first connecting rod to form a shrinkage groove. The shrinkage assembly includes a stop plate disposed in the middle of the push groove. Two sliders are slidably disposed in the shrinkage groove. The stop plate is located between the two sliders. The two sliders are connected to the two connecting blocks in a one-to-one correspondence. A spring is connected between each slider and the stop plate. The spring is used to drive the connecting block to shrink into the receiving through hole.

4. The feed quantitative packaging filling nozzle according to claim 2, characterized in that, The pushing assembly includes a partition block and a pry bar. The bottom of the main insertion hole is recessed to form a sliding hole. The partition block is slidably disposed in the sliding hole. A vertical rod is provided at one end of the partition block near the sliding hole. A second through hole is formed laterally on the side wall of the second connecting rod and communicates with the sliding hole. The pry bar is rotatably connected to the second through hole via a pivot. One end of the pry bar extends into the sliding hole and the other end extends out of the second connecting rod. The outer wall of the end of the pry bar located in the sliding hole is recessed to form a slide rail extending along the extension direction of the pry bar. The end of the vertical rod away from the partition block is slidably connected to the slide rail. The diameter of the main insertion hole is sufficient to allow the end of the pry bar located in the sliding hole to rotate within the main insertion hole. The main insert block has a first through hole at the end opposite to the first connecting rod, which is connected to the receiving through hole and is used for the partition block to extend into. The first through hole is located between the two connecting insert blocks. The side of the two connecting blocks that are close to each other is arc-shaped, and the end of the separator block that is away from the sliding hole is arc-shaped.

5. The feed quantitative packaging filling nozzle according to claim 4, characterized in that, A limiting insertion hole is formed horizontally through the second connecting rod. The middle part of the limiting insertion hole is connected to the second through hole. A limiting rod is detachably inserted into the second through hole. The limiting rod is located below the pry bar when the partition block is inserted into the receiving through hole and is in clearance fit with the pry bar. It is located on the side of the rotating shaft close to the vertical rod. Pins are provided at both ends of the limiting rod extending out of the limiting insertion hole.

6. The feed metering filling nozzle according to claim 1, characterized in that, The filling nozzle is provided with a bag clamping assembly for clamping the packaging bag. The bag clamping assembly includes two jaws symmetrically hinged to the outer wall of the filling nozzle for clamping the packaging bag. A cylinder is laterally hinged between the two jaws. The cylinder is used to drive the two jaws to move toward or away from the filling nozzle.

7. The feed metering filling nozzle according to claim 1, characterized in that, A guide sleeve is connected between the filling nozzle and the discharge port of the feed metering bagging machine to prevent material splashing.

8. The feed metering filling nozzle according to claim 7, characterized in that, The guide sleeve has a through-end structure and is made of flexible material. One end of the guide sleeve is fitted onto the end of the filling nozzle near the discharge port of the feed quantitative bagging machine, and the other end of the guide sleeve away from the filling nozzle is fitted onto the outside of the discharge port of the feed quantitative bagging machine through a shrinking structure.

9. The feed quantitative packaging filling nozzle according to claim 8, characterized in that, The end of the flow guide sleeve opposite to the filling nozzle is folded and sewn with a hollow rolled edge. The shrinking structure includes a drawstring that is slidably disposed inside the rolled edge. Two through holes connected to the inside of the rolled edge are formed on the rolled edge, and the two ends of the drawstring extend out from the through holes one to one.

10. The feed metering packaging filling nozzle according to claim 9, characterized in that, Protective rings are provided on both of the perforations. Anti-detachment blocks are provided at both ends of the drawstring extending out of the perforation to prevent the drawstring from falling off the rolled edge. The rolled edge inside the guide sleeve is covered with an anti-slip layer.

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