Double packing machine and its application in pearl cotton production

Abstract

The present invention relates to the technical field of pearl cotton production, and specifically to a double-link baler and its application in pearl cotton production, which is used to be connected to a pearl cotton machine to pack pearl cotton, and includes a casing, a bag hanging mechanism, a bag mouth pre-pressing mechanism and a strapping machine. In this application, after the bag mouth is manually hung on the bag hanging mechanism, the bag mouth pre-pressing mechanism will automatically complete the docking and sealing of the bag mouth and the cotton filling mouth. The automation of this process not only improves the accuracy of packaging, but also ensures the tightness of the seal. After the cotton filling is completed, the strapping mechanism will autonomously perform the strapping process of the bag mouth to ensure the stability of the packaging bag. In this way, the cumbersome problem of manually docking and strapping the bag mouth in the previous packaging process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pearl cotton production, in particular to a double-link baler and application thereof in pearl cotton production. Background Art

[0002] Pearl cotton is a spherical cotton fabric that looks like pearls and is made of chemical fibers such as silicon-containing hollow cotton. When used as a filler for clothing, quilts, pillow cores, toys, etc., it can make the product look fuller and more elastic, and has different spherical sizes and tightness to choose from. Therefore, pearl cotton is becoming more and more widely used as a new type of filling material, and the demand for high-quality pearl cotton is also increasing.

[0003] The basic steps of producing pearl cotton are: first, the tightly packed raw cotton is opened by a bale opener to obtain relatively loose raw cotton, the relatively loose raw cotton enters the cotton opener (opener) to open it to obtain loose finished cotton, and then the semi-finished cotton enters the pearl cotton machine for processing to obtain high-quality pearl cotton of the required specifications, and finally the pearl cotton is packaged or filled.

[0004] The conventional packaging method is to use a packaging machine with a single packaging port, the packaging port of the packaging machine is connected to a cotton storage box storing finished pearl cotton through a pipeline, and then a fixed amount of pearl cotton is sent into the packaging bag through the packaging port by a fan. The disadvantages of this structural method are: manual fixing of the packaging bag is labor-intensive and easy to leak cotton; each time a bag of pearl cotton is packaged, it is necessary to stop the machine, replace a new packaging bag, and restart it to fill and package the next packaging bag, which has low work efficiency.

[0005] Chinese patent announcement No. CN204197373U discloses a double-link baler, comprising two independent chambers, each chamber being provided with an independent baling port, and each baling port of the chamber being connected to a cotton storage box or a loosening machine or a pearl cotton machine through a pipeline; further comprising a vacuum pump, which is connected to the two baling ports through vacuum tubes, respectively, and each of the two baling ports is provided with a switching switch for opening or closing the two baling ports; further comprising an alarm device respectively provided for the two baling ports, for giving an alarm after the packaging bags in the corresponding chamber are packaged so as to switch to another chamber for packaging.

[0006] The dual-link baler automatically switches to the other baling chamber for baling after the baling in one chamber is completed and the alarm sounds. At the same time, the baling bag at the previous baling opening is replaced with an empty bag. However, manual intervention is still required to complete some subsequent operations. Specifically, the manual operator needs to manually connect the bag opening and the baling opening of the baling bag and seal the filled baling bag. In addition, the baled bags need to be bundled to ensure that they are firm and easy to transport. These manual intervention steps limit the overall baling efficiency, resulting in low baling efficiency. Summary of the invention

[0007] In view of the problems of the existing technology, a double baling machine and its application in the production of pearl cotton are provided. After the bag mouth is manually hung on the bag hanging mechanism, the bag mouth pre-pressing mechanism can automatically connect and seal the bag mouth with the cotton filling mouth, and after the cotton filling is completed, the strapping mechanism can strap the bag mouth by itself, which solves the problem that the existing baling mechanism requires manual connection and strapping of the bag mouth.

[0008] In order to solve the problems of the prior art, the present application provides a double-link baler, which is used to be connected to an EPE machine to pack EPE, and includes a casing, a bag hanging mechanism, a bag mouth pre-pressing mechanism and a strapping machine. The casing has two independent packing chambers, and the tops of the two packing chambers are both provided with a cotton filling tube connected to the EPE machine, and the cotton filling section of the cotton filling tube extends downward in the longitudinal direction. The bag hanging mechanism, the bag mouth pre-pressing mechanism and the strapping machine are all arranged in the upper part of the packing chamber, and the bag hanging mechanism has a function of being able to hang the bag mouth of the packing bag and circumferentially along the cotton filling tube. The bag mouth pre-pressing mechanism has a hook portion arranged along the circumference of the cotton filling tube. After the bag mouth of the polishing bag is hung by the hook portion, the closing portion of the bag mouth pre-pressing mechanism shrinks the bag mouth and presses it on the outer circumference of the cotton filling tube. The bundling mouth of the strapping machine is transversely arranged at the bottom of the cotton filling tube. In the cotton-filled state, the hook portion of the bag hanging mechanism, the closing portion of the bag mouth pre-pressing mechanism, the cotton filling mouth of the cotton filling tube and the bundling mouth of the strapping machine are distributed in sequence from top to bottom. After the cotton filling is completed, the bundling mouth of the strapping machine bundles the bag mouth of the packing bag transversely.

[0009] Preferably, the bag hanging mechanism also includes a lifting plate, a lifting drive cylinder and a guide rod, the lifting plate is longitudinally slidably arranged at the top of the cotton filling section of the cotton filling tube; the lifting drive cylinder is longitudinally arranged at the top of the casing, and the output shaft of the lifting drive cylinder is connected to the lifting plate; the guide rod is distributed along the circumference of the cotton filling tube, the top of the guide rod is fixedly connected to the lifting plate, and the hook is arranged at the bottom of the guide rod, and the hook has a hook section extending radially outward along the guide rod. When hanging the bag, the lifting drive cylinder guides the guide rod to move downward, and the hook drops to the bottom of the cotton filling port of the cotton filling tube.

[0010] Preferably, the bag hanging mechanism also includes a fixed ring, a rotating ring and a rotary mouth driving assembly. The fixed ring is coaxially slidably arranged on the outside of the cotton filling section of the cotton filling tube, the inner diameter of the fixed ring is larger than the cotton filling tube, and the bottom end of the guide rod is fixedly connected to the top end of the fixed ring; the rotating ring is coaxially rotatably arranged at the bottom end of the fixed ring, the hook is circumferentially arranged at the bottom of the rotating ring, and the outer side of the rotating ring is provided with transmission teeth distributed along its circumference; the rotary mouth driving assembly is arranged at the top of the packaging bin, and after the rotating ring moves upward, the transmission teeth engage with the output part of the rotary mouth driving assembly, and the rotary mouth driving assembly guides the rotating ring to rotate at the bottom end of the fixed ring.

[0011] Preferably, the hook portion also includes a connecting section extending in the longitudinal direction, the top of the connecting section is fixedly connected to the rotating ring, the hook section extends radially along the cotton-filling section of the cotton-filling tube, the hook section is rotatably connected to the bottom end of the connecting section, an elastic element is arranged between the other end of the hook section and the connecting section, and the hook section can deflect downward relative to the connecting section; the bottom end of the outer circumferential surface of the cotton-filling section of the cotton-filling tube is provided with an anti-slip ring coaxial therewith.

[0012] Preferably, the transmission teeth are conical teeth, and the rotary drive assembly includes a rotary drive motor and a bevel gear. The rotary drive motor is laterally arranged on the top of the packaging bin, and the bevel gear is coaxially and fixedly arranged on the output shaft of the rotary drive motor. After the rotating ring moves upward into place, the transmission teeth can engage with the bevel gear.

[0013] Preferably, the bag mouth pre-pressing mechanism includes a fixed cylinder, a fixed plate, a rotating ring, a closing drive assembly and an elastic belt. The fixed cylinder and the cotton filling section of the cotton filling tube are coaxially arranged at the top of the packing bin, and a positioning ring is arranged at the bottom end of the outer circumferential surface of the fixed cylinder; the fixed plate is arranged in the packing bin and is located at the bottom of the positioning ring, and a avoidance opening coaxial with the positioning ring is arranged on the fixed plate; the rotating ring is coaxially rotatably arranged between the fixed plate and the positioning ring with the positioning ring, the closing drive assembly is arranged at the top of the fixed plate, the closing drive assembly is transmission-connected with the rotating ring, and the closing drive assembly is used to drive the rotating circle to rotate coaxially at the bottom of the positioning ring; there are two elastic belts, one end of one of the elastic belts is connected to the rotating ring, and the other end is connected to the fixed plate; one end of the other elastic belt is connected to the rotating ring, and the other end is connected to the positioning ring; when the rotating ring rotates relative to the fixed plate and the positioning ring, the two elastic belts are respectively wrapped around the outside of the bag mouth and tightened on the outer circumferential surface of the cotton filling tube.

[0014] Preferably, a rack distributed along the circumference of the rotating circle is provided on the outer side of the rotating circle, and the closing drive assembly includes a closing drive motor and a gear. The closing drive motor is arranged on the top of the fixed plate, and the gear is coaxially fixedly arranged on the output shaft of the closing drive motor. The gear and the rack are meshed with each other. The closing drive motor inputs torque to the rotating circle through the gear to drive the rotating circle to rotate between the fixed plate and the positioning ring.

[0015] Preferably, the bundling mouth of the bundling machine is located at the bottom of the fixed plate, and a bag mouth guiding mechanism is also provided between the bundling mouth of the bundling machine and the fixed plate. The bag mouth guiding mechanism has a pushing part which can push the bag mouth toward the bundling table of the bundling machine. After the cotton filling is completed, the pushing part pushes the bag mouth toward the bundling table, and the bag mouth is bundled by the bundling machine.

[0016] Preferably, the bag opening guiding mechanism also includes a wide finger cylinder and a linear guiding cylinder. The wide finger cylinder is laterally arranged on the outside of the casing. Both ends of the wide finger cylinder are provided with clamping plates extending to the packing bin. The two clamping plates are both located between the fixed plate and the strapping opening. The linear guiding cylinder is laterally arranged on one side of the casing. A push plate extending to the packing bin is provided on the output shaft of the linear guiding cylinder. The push plate is located between the fixed plate and the strapping opening. The pushing end of the push plate faces the strapping table of the strapping machine. After the two clamping plates move toward each other and clamp the bag opening, the push plate pushes the bag opening toward the strapping table.

[0017] The application of double baler in pearl cotton production, using double baler, includes the following steps:

[0018] Step 1: connect the outlet of the cotton opener to the two cotton filling pipes of the double baler through a three-way ventilation fan;

[0019] Step 2: Hang the bag opening of the packing bag on the bag hanging mechanism, start the bag opening pre-pressing mechanism, and make the bag opening be sleeved on the cotton filling section of the cotton filling tube;

[0020] Step 3, start the three-way fan to make the pearl cotton in the cotton opener be filled into the packing bag in one of the packing bins;

[0021] Step 4: After the packing bag is filled, the pearl cotton is filled into the packing bag in another packing bin through the three-way fan;

[0022] Step 5: The strapping machine ties the filled packaging bags before unloading.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In this application, after the bag opening is manually hung on the bag hanging mechanism, the bag opening pre-pressing mechanism will automatically complete the docking and sealing of the bag opening and the cotton filling opening. The automation of this process not only improves the accuracy of packaging, but also ensures the tightness of the seal. After the cotton filling is completed, the strapping mechanism will autonomously strap the bag opening to ensure the stability of the packaging bag. In this way, the cumbersome problem of manual bag docking and strapping in the previous packaging process is solved.

[0025] In terms of specific operation, the bag mouth pre-pressing mechanism can quickly adjust and dock after the bag mouth is hung through precise mechanical design, avoiding errors and inconsistencies that may be caused by manual operation. After the filling process is completed, the strapping mechanism will automatically start the strapping operation, greatly reducing the dependence on manual operation and improving production efficiency and packaging quality. This improvement makes the packaging process more efficient and continuous, and significantly reduces the need for manual intervention, thereby optimizing the operation of the overall production line.

[0026] In addition, this automated packaging system not only improves production efficiency, but also reduces errors and instability caused by manual operation. The system's automatic docking and bundling functions can achieve a more uniform and standardized packaging effect, improving product consistency and quality. At the same time, this technological advancement also helps to reduce manual labor intensity, reduce the workload of operators, save costs for enterprises and improve productivity.

[0027] The bag opening pre-pressing mechanism in the present application realizes precise control of the bag opening through the organic combination of the fixed cylinder, the fixed plate, the rotating circle, the closing drive assembly and the elastic belt. This mechanism not only improves the efficiency and accuracy of cotton filling, but also provides an important guarantee for the stability and reliability of the entire packaging process.

[0028] The bag opening guiding mechanism in the present application accurately guides the bag opening to the strapping table and cooperates with the strapping action of the strapping machine to ensure that each bag opening is firmly strapped, thereby improving the packaging efficiency and packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of a double baler.

[0030] Figure 2 It is a three-dimensional cross-sectional view of a double baler.

[0031] Figure 3 It is a cross-sectional view of a double baler.

[0032] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0033] Figure 5 yes Figure 3 A partial enlarged view of point B.

[0034] Figure 6 It is a schematic diagram of the internal structure of a double baler.

[0035] Figure 7 It is a three-dimensional diagram of the bag hanging mechanism and bag mouth pre-pressing mechanism in a double baler.

[0036] Figure 8 It is a three-dimensional diagram of the bag opening guiding mechanism in a double baler.

[0037] Fig. 9 It is a three-dimensional exploded view of the bag mouth pre-pressing mechanism in a double baler.

[0038] Fig.10 It is a schematic diagram of the elastic belt and rotating circle in a double-link baler.

[0039] The numbers in the figure are: 1, casing; 11, cotton filling tube; 111, anti-slip ring; 2, bag hanging mechanism; 21, hook; 211, hook section; 212, connecting section; 213, elastic element; 22, lifting plate; 23, lifting drive cylinder; 24, guide rod; 25, fixed ring; 26, rotating ring; 27, rotating drive motor; 28, bevel gear; 3, bag mouth pre-pressing mechanism; 32, fixed cylinder; 321, positioning ring; 33, fixed plate; 34, rotating circle; 35, closing drive motor; 36, gear; 37, elastic belt; 4, strapping machine; 5, bag mouth guiding mechanism; 51, wide finger cylinder; 52, linear guide cylinder; 53, clamping plate; 54, push plate; 6, packing bag. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, this application provides:

[0042] The double-link baler is used to be connected with the pearl cotton machine to pack the pearl cotton, including a casing 1, a bag hanging mechanism 2, a bag mouth pre-pressing mechanism 3 and a strapping machine 4. The casing 1 has two independent packing chambers. The tops of the two packing chambers are both provided with a cotton filling tube 11 connected to the pearl cotton machine. The cotton filling section of the cotton filling tube 11 extends downward in the longitudinal direction. The bag hanging mechanism 2, the bag mouth pre-pressing mechanism 3 and the strapping machine 4 are all arranged in the upper part of the packing chamber. The bag hanging mechanism 2 has a hook portion 21 that can hang the bag mouth of the packing bag 6 and is arranged along the circumference of the cotton filling tube 11. The prepressing mechanism 3 has a closing portion arranged along the circumference of the cotton filling tube 11. After the bag mouth of the polishing bag is hung by the hook portion 21, the closing portion of the bag mouth prepressing mechanism 3 shrinks the bag mouth and presses it on the outer circumferential surface of the cotton filling tube 11. The bundling mouth of the tying machine 4 is transversely arranged at the bottom of the cotton filling tube 11. In the cotton-filled state, the hook portion 21 of the bag hanging mechanism 2, the closing portion of the bag mouth prepressing mechanism 3, the cotton filling mouth of the cotton filling tube 11 and the bundling mouth of the bundling machine 4 are distributed in sequence from top to bottom. After the cotton filling is completed, the bundling mouth of the bundling machine 4 bundling the bag mouth of the packing bag 6 along the transverse direction.

[0043] The strapping machine 4 is prior art and will not be described in detail here.

[0044] The design of the double baler allows the outlet of the cotton opener to be connected to the two cotton filling pipes 11 of the double baler through a three-way fan. This configuration can effectively synchronize the cotton filling process with the baling operation, thereby improving production efficiency.

[0045] Each packing bin is equipped with an independent cotton filling pipe 11, which is used for different packing tasks. When one packing bin has completed cotton filling and the packing operation is finished, the three-way ventilation machine automatically switches the airflow of the cotton filling pipe 11 to another unused packing bin. This process not only ensures the continuity of cotton filling, but also realizes a seamless transition of the packing operation.

[0046] When the filling process is completed, the three-way ventilation machine will be responsible for switching to the filling pipe 11 of another packing bin, and the previously used packing bin will start the automatic replacement process, taking out the packed bag and loading a new empty bag. This replacement process is completed automatically, ensuring the efficiency and stability of the packing operation.

[0047] Specifically, when the packing task of one packing bin is completed, the three-way ventilation machine will quickly switch its fan channel to direct the airflow to another packing bin to be processed. At the same time, the system will automatically take out the packed bags from the packing bin and replace them with empty bags to prepare for the next filling cycle. The whole process is seamless, avoiding delays and errors caused by manual operation.

[0048] This design significantly improves the automation level of the production line, reduces the need for manual intervention, and makes the packaging process smoother and more efficient. Through automatic switching and bag replacement functions, the double-link baler can maintain continuous production capacity while ensuring that the working status of each packaging bin always meets production requirements. This optimization not only improves production efficiency, but also ensures the stability and consistency of the packaging process.

[0049] The double baler is mainly composed of a housing 1, a bag hanging mechanism 2, a bag mouth pre-pressing mechanism 3 and a strapping machine 4. The interior of the housing 1 is divided into two independent baling chambers, and the top of each baling chamber is equipped with a cotton filling tube 11, which extends longitudinally downward and is connected to the pearl cotton machine.

[0050] The bag hanging mechanism 2, the bag mouth pre-pressing mechanism 3 and the strapping machine 4 are all installed on the upper part of the packing bin. The bag hanging mechanism 2 is provided with a plurality of hooks 21, which are distributed along the circumference of the cotton filling tube 11 and are used to hang the bag mouth of the packing bag 6. The closing part of the bag mouth pre-pressing mechanism 3 is also arranged along the circumference of the cotton filling tube 11. After the bag mouth of the packing bag 6 is hung on the hook 21 of the bag hanging mechanism 2, the closing part of the bag mouth pre-pressing mechanism 3 will automatically shrink the bag mouth and press it against the outer circumference of the cotton filling tube 11, ensuring that the bag mouth is firmly docked and preventing the pearl cotton from overflowing through the gap between the bag mouth and the outer circumference of the cotton filling tube 11 during the cotton filling process.

[0051] The strapping opening of the strapping machine 4 is set at the bottom of the cotton filling tube 11 and arranged horizontally. During the cotton filling process, the hook portion 21 of the bag hanging mechanism 2, the closing portion of the bag opening pre-pressing mechanism 3, the cotton filling opening of the cotton filling tube 11 and the strapping opening of the strapping machine 4 are arranged in sequence from top to bottom, forming a complete packaging process. After the cotton filling is completed, the strapping opening of the strapping machine 4 will strap the bag opening of the packing bag 6 horizontally to ensure the firmness of the bag opening and the integrity of the packaging.

[0052] This design effectively improves the level of automation of packaging, reduces the need for manual operation, and improves packaging efficiency. The automated bag hanging, pre-pressing and bundling functions make the packaging process smoother, ensure the packaging quality of pearl cotton, and optimize the overall operation of the production line.

[0053] like Figure 3 As shown, the bag hanging mechanism 2 also includes a lifting plate 22, a lifting drive cylinder 23 and a guide rod 24. The lifting plate 22 is longitudinally slidably arranged at the top of the cotton filling section of the cotton filling tube 11; the lifting drive cylinder 23 is longitudinally arranged at the top of the casing 1, and the output shaft of the lifting drive cylinder 23 is connected to the lifting plate 22; the guide rod 24 is distributed along the circumference of the cotton filling tube 11, and the top of the guide rod 24 is fixedly connected to the lifting plate 22, and the hook portion 21 is arranged at the bottom of the guide rod 24, and the hook portion 21 has a hook section 211 extending radially outward along the guide rod 24. When hanging bags, the lifting drive cylinder 23 guides the guide rod 24 to move downward, and the hook portion 21 drops to the bottom of the cotton filling port of the cotton filling tube 11.

[0054] The cooperation of the lifting plate 22, the lifting drive cylinder 23 and the guide rod 24 in the bag hanging mechanism 2 enables the hook 21 to stay stably at the correct position. When the lifting drive cylinder 23 drives the lifting plate 22 to move downward through its output shaft, the top end of the guide rod 24 is connected to the lifting plate 22, and the hook 21 moves accurately to the bottom of the filling port as the guide rod 24 descends.

[0055] At this time, the hook section 211 of the hook portion 21 will be displayed below the filling port, providing an obvious and easy-to-operate bag hanging position. Due to the design of the hook portion 21, the hook section 211 extends radially outward along the guide rod 24, and the staff can easily hang the bag opening of the packing bag 6 on the hook portion 21. This process does not require complicated adjustments or additional operating steps, and only requires the bag opening to be aligned with the hook portion 21 and hung.

[0056] With the hook 21 in place, the worker can quickly and accurately complete the task of hanging the bag opening. This design not only improves work efficiency, but also reduces time waste and errors caused by inconvenient operation. During the bag hanging process, the hook 21 stably supports the bag opening, ensuring that the docking position of the bag opening is correct, laying a good foundation for subsequent filling and packaging operations.

[0057] like Figure 5 As shown, the bag hanging mechanism 2 also includes a fixed ring 25, a rotating ring 26 and a rotary mouth driving assembly. The fixed ring 25 is coaxially slidably arranged on the outside of the cotton filling section of the cotton filling tube 11. The inner diameter of the fixed ring 25 is larger than the cotton filling tube 11, and the bottom end of the guide rod 24 is fixedly connected to the top end of the fixed ring 25; the rotating ring 26 is coaxially rotatably arranged at the bottom end of the fixed ring 25, the hook 21 is circumferentially arranged at the bottom of the rotating ring 26, and the outer side of the rotating ring 26 is provided with transmission teeth distributed along its circumference; the rotary mouth driving assembly is arranged at the top of the packaging bin, and after the rotating ring 26 moves upward, the transmission teeth engage with the output part of the rotary mouth driving assembly, and the rotary mouth driving assembly guides the rotating ring 26 to rotate at the bottom end of the fixed ring 25.

[0058] After filling, when the bag opening pre-pressing mechanism 3 stops constraining the bag opening, the hook 21 rotates along the circumference of the filling opening to further optimize the tightening of the bag opening. This process allows the bag opening to be more tightly closed, thereby facilitating subsequent bundling operations. The design of the bag hanging mechanism 2 includes a fixed ring 25, a rotating ring 26 and a rotating opening drive assembly. Through the coordinated work of these components, an efficient bag opening tightening function is achieved.

[0059] The fixing ring 25 is coaxially slidably arranged outside the filling section of the filling tube 11, and its inner diameter is larger than the filling tube 11, ensuring that the fixing ring 25 can slide freely outside the filling port. The top end of the fixing ring 25 is fixedly connected to the bottom end of the guide rod 24, providing stable support.

[0060] The rotating ring 26 is coaxially rotatably arranged at the bottom end of the fixed ring 25. The hooks 21 are distributed along the circumference of the rotating ring 26, and these hooks 21 can contact the bag mouth at the bottom of the rotating ring 26. The outer side of the rotating ring 26 is equipped with transmission teeth distributed along its circumference. These gears 36 mesh with the output part of the rotating mouth driving assembly during the rotation process, which can achieve precise rotation control.

[0061] The rotary opening drive assembly is arranged at the top of the packing bin, and its function is to guide the rotating ring 26 to rotate. When the rotating ring 26 moves upward, the transmission gear will mesh with the output part of the rotary opening drive assembly, thereby driving the rotating ring 26 to rotate at the bottom end of the fixed ring 25. This rotational motion can effectively drive the hook 21 to twist the bag opening along the circumference of the filling opening, so that the bag opening is tightly closed.

[0062] This design ensures that the bag mouth can be tightened in a stable and uniform manner after filling, creating ideal conditions for subsequent strapping operations. The precise control of the rotary mouth drive assembly and the effective rotation of the rotating ring 26 ensure the reliability and consistency of the bag mouth during the packaging process.

[0063] like Figure 4As shown, the hook portion 21 also includes a connecting section 212 extending in the longitudinal direction, the top of the connecting section 212 is fixedly connected to the rotating ring 26, the hook section 211 extends radially along the cotton filling section of the cotton filling tube 11, the hook section 211 is rotatably connected to the bottom end of the connecting section 212, an elastic element 213 is arranged between the other end of the hook section 211 and the connecting section 212, and the hook section 211 can be deflected downward relative to the connecting section 212; the bottom end of the outer circumferential surface of the cotton filling section of the cotton filling tube 11 is provided with an anti-slip ring 111 coaxial therewith.

[0064] In the bag hanging mechanism 2 of the double baler, in order to improve the convenience of operation and prevent the bag opening from falling off during filling, a hook portion 21 including a connecting section 212 extending in the longitudinal direction is designed. This design not only optimizes the hanging and tightening process of the bag opening, but also enhances the stability and safety of the system.

[0065] The hook section 211 of the hook portion 21 extends radially along the cotton filling section of the cotton filling tube 11, and its top end is connected to the bottom end of the connecting section 212 by rotation, so that the hook section 211 can rotate around the connecting section 212. The top end of the connecting section 212 is fixedly connected to the rotating ring 26, ensuring the stability and controllability of the hook section 211. An elastic element 213 is provided between the hook section 211 and the connecting section 212, and the elastic element 213 allows the hook section 211 to deflect downward relative to the connecting section 212 to meet the requirements of hanging and detaching the bag mouth.

[0066] When the bottom end of the outer circumferential surface of the filling section of the filling tube 11 is provided with a coaxial anti-slip ring 111, the anti-slip ring 111 effectively prevents the bag opening from falling off the filling tube 11 during the filling process. The design of the anti-slip ring 111 ensures that the bag opening can be firmly maintained on the outer circumferential surface of the filling tube 11 during the filling process, avoiding the problem of the bag opening falling off due to instability.

[0067] When the bag opening pre-pressing mechanism 3 stops constraining the bag opening, and during the process of hanging the bag opening, when the bag opening is pulled downward, the hook section 211 will overcome the elastic force of the elastic element 213 and deflect downward, so that the bag opening can be smoothly separated from the hook section 211. The provision of the elastic element 213 ensures that the hook section 211 can be properly deflected when needed, avoiding obstruction caused by pulling the bag opening.

[0068] At the same time, when the bag opening is constrained by the pre-pressing mechanism on the outer circumference of the cotton filling tube 11, the anti-slip ring 111 effectively prevents the bag opening from accidentally falling off. The anti-slip ring 111 not only improves the safety of the system, but also reduces the interruption of the production line and the waste of resources caused by the bag opening falling off.

[0069] like Figure 5As shown, the transmission teeth are conical teeth, and the rotary drive assembly includes a rotary drive motor 27 and a bevel gear 28. The rotary drive motor 27 is horizontally arranged on the top of the packaging bin, and the bevel gear 28 is coaxially and fixedly arranged on the output shaft of the rotary drive motor 27. After the rotating ring 26 moves upward into position, the transmission teeth can engage with the bevel gear 28.

[0070] In the bag hanging mechanism 2, the transmission teeth are designed as conical teeth, which mesh with the bevel gear 28 in the rotary mouth drive assembly. The rotary mouth drive assembly includes a horizontally arranged rotary drive motor 27 and a bevel gear 28 fixed on its output shaft. After the rotating ring 26 moves upward to its position, the transmission teeth and the bevel gear 28 can mesh smoothly to achieve precise rotation control. This design improves the transmission efficiency and stability, and ensures accurate tightening and smooth bundling of the bag mouth.

[0071] like Fig. 9 and Fig.10 As shown, the bag mouth pre-pressing mechanism 3 includes a fixed cylinder 32, a fixed plate 33, a rotating ring 34, a closing drive assembly and an elastic belt 37. The fixed cylinder 32 is coaxially arranged at the top of the packing bin with the cotton filling section of the cotton filling tube 11, and a positioning ring 321 is arranged at the bottom end of the outer circumferential surface of the fixed cylinder 32; the fixed plate 33 is arranged in the packing bin and is located at the bottom of the positioning ring 321, and a avoidance opening coaxial with the positioning ring 321 is arranged on the fixed plate 33; the rotating ring 34 is coaxially rotatably arranged between the fixed plate 33 and the positioning ring 321, and the closing drive assembly is arranged on the fixed plate 33 and the positioning ring 321. At the top of the plate 33, the closing drive assembly is transmission-connected with the rotating circle 34, and the closing drive assembly is used to drive the rotating circle 34 to rotate coaxially at the bottom of the positioning ring 321; there are two elastic belts 37, one end of one elastic belt 37 is connected to the rotating circle 34, and the other end is connected to the fixed plate 33; one end of the other elastic belt 37 is connected to the rotating circle 34, and the other end is connected to the positioning ring 321; when the rotating ring 26 rotates relative to the fixed plate 33 and the positioning ring 321, the two elastic belts 37 are respectively wrapped around the outside of the bag opening and tightened on the outer circumference of the cotton filling tube 11.

[0072] In the bag hanging mechanism 2 of the double baler, the bag opening pre-pressing mechanism 3 is designed to effectively fix and tighten the bag opening to ensure that the bag opening will not loosen or fall off during the filling process. The mechanism is composed of multiple key components, including a fixed cylinder 32, a fixed plate 33, a rotating circle 34, a closing drive component and an elastic belt 37, and each part cooperates with each other to achieve precise control of the bag opening.

[0073] The fixed cylinder 32 is coaxially arranged with the cotton filling section of the cotton filling tube 11 at the top of the packing bin, forming a stable foundation. A positioning ring 321 is arranged at the bottom end of the outer circumferential surface of the fixed cylinder 32 to ensure the position stability of the bag opening during the cotton filling process. The fixed plate 33 is located in the packing bin, just at the bottom of the positioning ring 321, and is provided with an avoidance opening coaxial with the positioning ring 321, which provides convenience for subsequent operations.

[0074] Between the fixed plate 33 and the positioning ring 321, the rotating ring 34 rotates coaxially with the positioning ring 321, so that it can be flexibly adjusted to meet the needs of bag openings of different sizes. The closing drive assembly is located on the top of the fixed plate 33, and drives the rotating ring 34 to rotate coaxially at the bottom of the positioning ring 321 through a transmission connection. This assembly is the core of the bag opening pre-pressing mechanism 3, and effectively tightens the bag opening by controlling the movement of the rotating ring 34.

[0075] There are two elastic bands 37, both of which play the role of fixing and tightening. One end of one of the elastic bands 37 is connected to the rotating circle 34, and the other end is connected to the fixed plate 33, forming a stable closing mechanism; one end of the other elastic band 37 is also connected to the rotating circle 34, and the other end is connected to the positioning ring 321. This design allows the elastic band 37 to be flexibly wrapped around the outside of the bag opening when the rotating circle 34 rotates relative to the fixed plate 33 and the positioning ring 321, and it is tightly tightened on the outer circumference of the cotton filling tube 11.

[0076] In actual operation, when the closing driving assembly is started, the rotating ring 34 rotates coaxially at the bottom of the positioning ring 321, so that the elastic band 37 is wound along with the movement of the rotating ring 34. In this way, the bag mouth is tightened evenly, ensuring stability during the filling process, preventing the bag mouth from loosening or falling off, and ensuring the smooth progress of the packaging operation.

[0077] In general, the bag opening pre-pressing mechanism 3 realizes precise control of the bag opening through the organic combination of the fixed cylinder 32, the fixed plate 33, the rotating circle 34, the closing driving assembly and the elastic belt 37. This mechanism not only improves the efficiency and accuracy of cotton filling, but also provides an important guarantee for the stability and reliability of the entire packaging process.

[0078] like Fig. 9 As shown, the outer side of the rotating circle 34 is provided with racks distributed along its circumference, and the closing drive assembly includes a closing drive motor 35 and a gear 36. The closing drive motor 35 is arranged on the top of the fixed plate 33, and the gear 36 is coaxially fixedly arranged on the output shaft of the closing drive motor 35. The gear 36 and the rack are meshed with each other. The closing drive motor 35 inputs torque to the rotating circle 34 through the gear 36 to drive the rotating circle 34 to rotate between the fixed plate 33 and the positioning ring 321.

[0079] In the design of the bag mouth pre-pressing mechanism 3, a series of racks are evenly distributed along the circumference of the outer side of the rotating circle 34. The arrangement of these racks is intended to achieve precise cooperation with the closing drive assembly to ensure that the rotating circle 34 can rotate smoothly and reliably.

[0080] The closing drive assembly is composed of a closing drive motor 35 and a gear 36. The closing drive motor 35 is mounted on the top of the fixed plate 33 to provide a power source for the entire system. The gear 36 is coaxially fixed on the output shaft of the closing drive motor 35 and transmits the power generated by the motor to the rotating circle 34 through a precise mechanical connection. The gear 36 meshes with the rack on the rotating circle 34, forming a key link in power transmission.

[0081] When the closing driving motor 35 is started, the gear 36 on its output shaft starts to rotate, and the torque generated by the motor is transmitted to the rotating ring 34 through the meshing of the gear 36 and the rack. This process causes the rotating ring 34 to rotate between the fixed plate 33 and the positioning ring 321. The rotation of the rotating ring 34 can evenly apply force, so that the two elastic bands 37 gradually wrap around the bag opening, ensuring that they are stably wrapped around the outer circumference of the cotton filling tube 11.

[0082] Specifically, the design of the rack not only provides precise contact with the gear 36, but also can withstand the high torque generated by the closing drive motor 35, thereby achieving a smooth and efficient rotation process. The engagement between the gear 36 and the rack reduces friction and energy loss, and improves the overall efficiency and reliability of the system. In this way, the entire bag opening pre-pressing mechanism 3, driven by the closing drive motor 35, can achieve precise tightening of the bag opening and ensure stability during the filling process.

[0083] like Figure 7 and Figure 8 As shown, the bundling opening of the bundling machine 4 is located at the bottom of the fixed plate 33, and a bag opening guiding mechanism 5 is also arranged between the bundling opening of the bundling machine 4 and the fixed plate 33. The bag opening guiding mechanism 5 has a pushing part which can push the bag opening toward the bundling table of the bundling machine 4. After the cotton filling is completed, the pushing part pushes the bag opening toward the bundling table, and the bag opening is bundled by the bundling machine 4.

[0084] In the design of the strapping machine 4, the strapping opening is located at the bottom of the fixed plate 33, providing an operating area for the strapping process of the bag opening. In order to ensure that the bag opening can accurately enter the strapping opening and be strapped smoothly, the bag opening guiding mechanism 5 is arranged between the strapping opening and the fixed plate 33 to assist in guiding the bag opening to the strapping table of the strapping machine 4.

[0085] The component of the bag opening guiding mechanism 5 is a material pushing part, which has the function of pushing the bag opening to the strapping table, ensuring that the material pushing part can quickly and accurately move the bag opening to the strapping table of the strapping machine 4 after the cotton filling process is completed.

[0086] After the filling process is completed, the pushing part starts to work, and pushes the bag opening to the position of the strapping table through a precisely controlled pushing force. In this process, the design of the bag opening guiding mechanism 5 ensures the smooth movement of the bag opening, avoids the bag opening from being twisted or misaligned during the pushing process, and thus maintains the correct position of the bag opening.

[0087] When the bag opening reaches the strapping station, the strapping machine 4 starts strapping. The strapping machine 4 is usually equipped with a strapping belt, a strapping head and a fastening device, and can strap around the bag opening. The strapping belt is automatically wrapped around the bag opening and is compressed by the fastening device of the strapping machine 4, thereby fastening and fixing the bag opening.

[0088] The coordination and precision of the whole process are crucial to ensure the quality of the strapping. The bag opening guiding mechanism 5 accurately guides the bag opening to the strapping table and cooperates with the strapping action of the strapping machine 4 to ensure that each bag opening is firmly strapped, thereby improving the packaging efficiency and packaging quality.

[0089] like Figure 8 As shown, the bag opening guiding mechanism 5 also includes a wide finger cylinder 51 and a linear guiding cylinder 52. The wide finger cylinder 51 is laterally arranged on the outside of the casing 1. Both ends of the wide finger cylinder 51 are provided with clamping plates 53 extending to the packing bin. The two clamping plates 53 are both located between the fixed plate 33 and the strapping opening. The linear guiding cylinder 52 is laterally arranged on one side of the casing 1. A push plate 54 extending to the packing bin is provided on the output shaft of the linear guiding cylinder 52. The push plate 54 is located between the fixed plate 33 and the strapping opening. The pushing end of the push plate 54 faces the strapping table of the strapping machine 4. After the two clamping plates 53 move toward each other and clamp the bag opening, the push plate 54 pushes the bag opening toward the strapping table.

[0090] The wide finger cylinder 51 is arranged laterally on the outside of the housing 1, and its main function is to clamp the bag opening. A clamping plate 53 is arranged at each end of the wide finger cylinder 51, and these clamping plates 53 extend inward to the packaging bin, corresponding to the space between the fixed plate 33 and the strapping opening. Each clamping plate 53 clamps on both sides of the bag opening, and the clamping plates 53 move towards each other through the control of the cylinder, thereby firmly clamping the bag opening. The design and movement of the clamping plates 53 ensure that the bag opening will not shift or deform during the guiding process, providing a stable foundation for the subsequent pushing steps.

[0091] The linear guide cylinder 52 is laterally arranged on one side of the housing 1, and is mainly responsible for pushing the bag opening to move toward the strapping table. A push plate 54 is installed on the output shaft of the linear guide cylinder 52, and the push plate 54 extends inward to the strapping bin, and its pushing end faces the strapping table of the strapping machine 4. Under the push of the push plate 54, the bag opening is accurately pushed toward the strapping table, ensuring that the bag opening is aligned with the strapping opening of the strapping machine 4.

[0092] During operation, the wide finger cylinder 51 first moves the clamping plates 53 toward each other, and the clamping plates 53 clamp the two sides of the bag opening to ensure that the bag opening is stably fixed in a predetermined position. Subsequently, the linear guide cylinder 52 pushes the clamped bag opening toward the strapping table through the pushing action of the push plate 54. The design of the push plate 54 enables the bag opening to move smoothly to the strapping table, avoiding any possible displacement or deflection during the pushing process.

[0093] The design of this guide mechanism significantly improves the positioning accuracy of the bag opening and the bundling efficiency. The cooperation of the wide finger cylinder 51 and the linear guide cylinder 52 ensures the stability of the bag opening during the entire process, reduces the need for manual operation, and optimizes the entire bundling process. Through precise clamping and pushing, the bag opening can smoothly enter the bundling opening of the bundling machine 4 to complete a high-quality bundling operation. This integrated design not only improves production efficiency, but also ensures the consistency and reliability of packaging.

[0094] The application of double baler in pearl cotton production, using double baler, includes the following steps:

[0095] Step 1: connect the outlet of the cotton opener to the two cotton filling pipes 11 of the double baler through a three-way fan;

[0096] Step 2: Hang the bag opening of the packing bag 6 on the bag hanging mechanism 2, start the bag opening pre-pressing mechanism 3, and make the bag opening be sleeved on the cotton filling section of the cotton filling tube 11;

[0097] Step 3, start the three-way fan so that the pearl cotton in the cotton opener is filled into the packing bag 6 of one of the packing bins;

[0098] Step 4: After the packing bag 6 is filled, the pearl cotton is filled into the packing bag 6 in another packing bin through the three-way fan;

[0099] Step 5: The strapping machine 4 ties the filled packaging bag 6 and then unloads the material.

[0100] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. Double packing machine, used to be connected with the pearl cotton machine to pack pearl cotton, characterized in that: The invention comprises a casing (1), a bag hanging mechanism (2), a bag mouth pre-pressing mechanism (3) and a strapping machine (4); the casing (1) has two independent strapping chambers; the tops of the two strapping chambers are each provided with a cotton filling tube (11) connected to a pearl cotton machine; the cotton filling section of the cotton filling tube (11) extends downward in the longitudinal direction; the bag hanging mechanism (2), the bag mouth pre-pressing mechanism (3) and the strapping machine (4) are all arranged at the upper part of the strapping chamber; the bag hanging mechanism (2) has a hook portion (21) which is capable of hanging the bag mouth of the strapping bag (6) and is arranged along the circumference of the cotton filling tube (11); the bag mouth pre-pressing mechanism (3) has a hook portion (21) which is arranged along the circumference of the cotton filling tube (11); The tube (11) has a circumferentially arranged closing portion. After the bag opening of the polishing bag is hung by the hook portion (21), the closing portion of the bag opening pre-pressing mechanism (3) shrinks the bag opening and presses it onto the outer circumferential surface of the cotton filling tube (11). The bundling opening of the bundling machine (4) is transversely arranged at the bottom of the cotton filling tube (11). In the cotton filling state, the hook portion (21) of the bag hanging mechanism (2), the closing portion of the bag opening pre-pressing mechanism (3), the cotton filling opening of the cotton filling tube (11) and the bundling opening of the bundling machine (4) are arranged in sequence from top to bottom. After the cotton filling is completed, the bundling opening of the bundling machine (4) bundles the bag opening of the packing bag (6) transversely. The bag mouth pre-pressing mechanism (3) comprises a fixed cylinder (32), a fixed plate (33), a rotating ring (34), a closing drive assembly and an elastic band (37); the fixed cylinder (32) and the filling section of the filling tube (11) are coaxially arranged at the top of the packing bin; a positioning ring (321) is arranged at the bottom end of the outer circumferential surface of the fixed cylinder (32); the fixed plate (33) is arranged in the packing bin and is located at the bottom of the positioning ring (321); a avoiding opening coaxial with the positioning ring (321) is arranged on the fixed plate (33); the rotating ring (34) rotates coaxially with the positioning ring (321) The closing drive assembly is arranged between the fixed plate (33) and the positioning ring (321), the closing drive assembly is arranged on the top of the fixed plate (33), the closing drive assembly is in transmission connection with the rotating circle (34), and the closing drive assembly is used to drive the rotating circle (34) to rotate coaxially at the bottom of the positioning ring (321); there are two elastic bands (37), one end of one elastic band (37) is connected to the rotating circle (34), and the other end is connected to the fixed plate (33); one end of the other elastic band (37) is connected to the rotating circle (34), and the other end is connected to the positioning ring (321); The bag hanging mechanism (2) further comprises a lifting plate (22), a lifting drive cylinder (23) and a guide rod (24); the lifting plate (22) is slidably arranged at the top of the cotton filling section of the cotton filling tube (11) in the longitudinal direction; the lifting drive cylinder (23) is arranged at the top of the housing (1) in the longitudinal direction, and the output shaft of the lifting drive cylinder (23) is connected to the lifting plate (22); the guide rod (24) is distributed along the circumference of the cotton filling tube (11), the top of the guide rod (24) is fixedly connected to the lifting plate (22), the hook portion (21) is arranged at the bottom of the guide rod (24), and the hook portion (21) has a hook section (211) extending radially outward from the guide rod (24); when hanging the bag, the lifting drive cylinder (23) guides the guide rod (24) to move downward, and the hook portion (21) descends to the bottom of the cotton filling port of the cotton filling tube (11); The bag hanging mechanism (2) further comprises a fixed ring (25), a rotating ring (26) and a rotary drive assembly. The fixed ring (25) is coaxially slidably arranged on the outside of the cotton filling section of the cotton filling tube (11). The inner diameter of the fixed ring (25) is larger than that of the cotton filling tube (11). The bottom end of the guide rod (24) is fixedly connected to the top end of the fixed ring (25). The rotating ring (26) is coaxially rotatably arranged at the bottom end of the fixed ring (25). The hook portion (21) is circumferentially arranged at the bottom of the rotating ring (26). The outer side of the rotating ring (26) is provided with transmission teeth distributed along its circumference; the rotary mouth driving assembly is arranged at the top of the packaging bin, and after the rotating ring (26) moves upward, the transmission teeth mesh with the output part of the rotary mouth driving assembly, and the rotary mouth driving assembly guides the rotating ring (26) to rotate at the bottom end of the fixed ring (25); when the rotating ring (26) rotates relative to the fixed plate (33) and the positioning ring (321), the two elastic bands (37) are respectively wrapped around the outer side of the bag opening and tightened on the outer circumferential surface of the cotton filling tube (11).

2. The double baler according to claim 1, characterized in that: The hook portion (21) further comprises a connecting section (212) extending in the longitudinal direction, the top end of the connecting section (212) being fixedly connected to the rotating ring (26), the hook section (211) extending in the radial direction of the cotton filling section of the cotton filling tube (11), the hook section (211) being rotatably connected to the bottom end of the connecting section (212), an elastic element (213) being provided between the other end of the hook section (211) and the connecting section (212), and the hook section (211) being capable of deflecting downward relative to the connecting section (212); and an anti-slip ring (111) coaxial with the outer circumferential surface of the cotton filling section of the cotton filling tube (11) is provided at the bottom end.

3. The double baler according to claim 1, characterized in that: The transmission teeth are conical teeth, and the rotary drive assembly comprises a rotary drive motor (27) and a bevel gear (28). The rotary drive motor (27) is arranged horizontally on the top of the packaging bin, and the bevel gear (28) is coaxially fixedly arranged on the output shaft of the rotary drive motor (27). After the rotating ring (26) moves upward to a position, the transmission teeth can mesh with the bevel gear (28).

4. The double baler according to claim 1, characterized in that: The outer side of the rotating circle (34) is provided with racks distributed along its circumference. The closing drive assembly comprises a closing drive motor (35) and a gear (36). The closing drive motor (35) is arranged on the top of the fixed plate (33). The gear (36) is coaxially fixedly arranged on the output shaft of the closing drive motor (35). The gear (36) and the rack are meshed with each other. The closing drive motor (35) inputs torque to the rotating circle (34) through the gear (36) to drive the rotating circle (34) to rotate between the fixed plate (33) and the positioning ring (321).

5. The double baler according to claim 1, characterized in that: The strapping opening of the strapping machine (4) is located at the bottom of the fixed plate (33), and a bag opening guiding mechanism (5) is also provided between the strapping opening of the strapping machine (4) and the fixed plate (33). The bag opening guiding mechanism (5) has a pushing portion capable of pushing the bag opening toward the strapping table of the strapping machine (4). After the cotton filling is completed, the pushing portion pushes the bag opening toward the strapping table, and the bag opening is strapped by the strapping machine (4).

6. The double baler according to claim 5, characterized in that: The bag opening guiding mechanism (5) further comprises a wide finger cylinder (51) and a linear guiding cylinder (52). The wide finger cylinder (51) is transversely arranged on the outside of the casing (1). Both ends of the wide finger cylinder (51) are provided with clamping plates (53) extending to the packing bin. The two clamping plates (53) are both located between the fixed plate (33) and the strapping opening. The linear guiding cylinder (52) is transversely arranged on one side of the casing (1). A push plate (54) extending to the packing bin is provided on the output shaft of the linear guiding cylinder (52). The push plate (54) is located between the fixed plate (33) and the strapping opening. The pushing end of the push plate (54) faces the strapping table of the strapping machine (4). After the two clamping plates (53) move towards each other and clamp the bag opening, the push plate (54) pushes the bag opening towards the strapping table.

7. The application of a double baler in the production of pearl cotton, using the double baler as described in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: connecting the outlet of the cotton opener to the two cotton filling pipes (11) of the double baling machine through a three-way ventilation fan; Step 2, hanging the bag opening of the packing bag (6) on the bag hanging mechanism (2), starting the bag opening pre-pressing mechanism (3), so that the bag opening is sleeved on the cotton filling section of the cotton filling tube (11); Step 3, start the three-way ventilation fan so that the pearl cotton in the cotton opener is filled into the packing bag (6) of one of the packing bins; Step 4, when the packing bag (6) is filled, the pearl cotton is filled into the packing bag (6) in another packing bin through the three-way fan; Step five: The strapping machine (4) ties the filled packaging bag (6) and then unloads the material.

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