Opening and sealing device and method for woven bags

Abstract

The opening and sealing device comprises an annular conveying unit, one side of the annular conveying unit is sequentially provided with a feeding operation area and a positioning filling area, and the tail section of the annular conveying unit is sequentially provided with a guiding and sealing area and a discharging area; a sealing conveying belt is arranged on the sealing guide table, the driving motor is arranged on one side of the sealing guide table and used for driving the sealing conveying belt, a guide assembly and a sealing machine are sequentially arranged above the sealing conveying belt, the discharging area is located at the tail section of the sealing conveying belt, a discharging table is arranged at the position of the discharging area, and the inner side of the discharging table is in sliding connection with the sealing guide table. The first driving unit is arranged on one side of the discharging table and used for driving the discharging table to move up and down. The device has the advantages that the overall production efficiency is improved, the labor intensity is reduced, the working comfort is improved, the product quality stability is improved, product storage and transportation are facilitated, the woven bag falling risk is reduced, and material waste and safety accidents are reduced.

Description

Technical Field

[0001] The present invention relates to a structure for propping open a seal, and more particularly, to a device and method for propping open and sealing a woven bag. Background Art

[0002] In the packaging industry, woven bags are widely used in the packaging of various materials due to their low cost, high strength, good durability, etc. However, there are the following problems in the existing operations of propping open and sealing woven bags. On the one hand, most of the traditional methods for propping open woven bags rely on manual operations. Workers need to manually prop open the opening of the woven bag for subsequent filling. This method is not only inefficient but also labor-intensive. Repeated operations for a long time are likely to cause worker fatigue, thereby affecting work quality and efficiency. In large-scale production scenarios, the speed of manually propping open woven bags far cannot meet the production requirements, becoming a bottleneck restricting the improvement of production efficiency. On the other hand, due to the inability to position the woven bag, the woven bag is prone to shaking, displacement, or even slipping during the filling process, resulting in uneven filling, material waste, and may also cause damage to production equipment. Moreover, it is difficult to ensure the accuracy and consistency of each filling when manually supporting the woven bag for filling, affecting the stability of product quality. On the other hand, existing sealing equipment and processes often cannot well adapt to woven bags of different specifications and materials, and the sealing quality is uneven. Whether it is manual sealing or sealing through a sealing machine, operators need to manually position the sealing area of the woven bag and also need to manually move the woven bag filled with materials. This is not only labor-intensive but also has a low sealing quality. If manual sealing is used, due to the too much physical consumption of the operator, it will affect the quality of the operator during sealing, resulting in situations such as loose sealing and poor sealing, causing material leakage and affecting the storage and transportation of products. In addition, in the entire process of propping open and sealing woven bags, the connection between each link is not smooth enough, lacking systematic integration. From propping open, filling to sealing and discharging, there are time differences and space wastes between each step, and high-efficiency flow operation cannot be achieved. This not only reduces production efficiency but also increases the occupied area of the production site and management costs. And during discharging, on the one hand, operators need to carry the woven bag filled with materials off the operating table. The filling of materials inside the woven bag increases its overall weight, and operators need to exert great effort each time they carry it. Repeated high-intensity physical labor for a long time is extremely likely to cause operator fatigue, not only affecting work efficiency but also possibly causing damage to their physical health. On the other hand, during the carrying process, it is difficult for operators to ensure a firm grip on it. If the grip is unstable, the woven bag filled with materials may fall, which will not only cause the materials to spill out, resulting in material waste, but also may injure the operator's feet or other body parts, triggering safety accidents.

[0003] Therefore, those skilled in the art are committed to providing a support and sealing device and method for woven bags that can effectively solve the above-mentioned technical problems. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a propping and sealing device and method for woven bags that can effectively solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides a support and sealing device for woven bags, comprising an annular transmission unit, one side of which is provided with a loading operation area and a positioning and filling area in sequence, and the tail section of the annular transmission unit is provided with a guiding sealing area and a discharging area in sequence;

[0006] The annular transmission unit is provided with a plurality of spreading mechanisms, two adjacent spreading mechanisms are arranged at intervals, and are driven by the annular transmission unit to perform annular motion;

[0007] The expansion mechanism includes an outer plate and an inner positioning seat connected to the annular transmission unit, the outer plate and the inner positioning seat cooperate with each other to limit the position of the woven bag, and an independent driving expansion component is provided on the inner positioning seat, and the independent driving expansion component is used to expand and limit the woven bag;

[0008] The loading operation area includes an operation table arranged on one side of the annular transmission unit, and a plurality of operation stations are arranged along the length direction of the operation table;

[0009] The positioning and filling area is provided with a clamping and positioning component and a filling station, and the clamping and positioning component is used in conjunction with the opening mechanism to limit the position of the woven bag;

[0010] The guide sealing area includes a sealing guide platform, a sealing conveyor belt is arranged on the sealing guide platform, a driving motor is arranged on one side of the sealing guide platform and is used to drive the sealing conveyor belt, a guide assembly and a sealing machine are arranged above the sealing conveyor belt in sequence, the sealing conveyor belt is used to sequentially transfer the woven bag to the guide assembly, the sealing machine and the unloading area, the guide assembly is used to limit the upper half of the woven bag filled with materials, and the sealing machine is used to seal the limited part of the woven bag;

[0011] The unloading area is located at the tail section of the sealing conveyor belt, and a unloading platform is provided at the unloading area. The inner side of the unloading platform is slidably connected to the sealing guide platform, and a first driving unit is provided at one side of the unloading platform and is used to drive the unloading platform to move up and down.

[0012] Further, the annular transmission unit comprises an annular frame, an inner annular chain and an outer annular chain are arranged on the annular frame, and a second driving unit for driving the inner annular chain and the outer annular chain is arranged on the annular frame;

[0013] A plurality of first support blocks are provided on the inner side of the upper end of the inner ring chain by means of a plurality of screws, and the outer side of each of the first support blocks extends toward the outer ring chain; a plurality of second support blocks are provided on the upper end of the outer ring chain by means of a plurality of screws, and the inner side of each of the second support blocks extends toward the first support block and is spaced apart from the first support block; the lower end of the outer plate of the spreading mechanism is connected to the second support block, and the inner positioning seat of the spreading mechanism is connected to the first support block.

[0014] Furthermore, the upper end of the outer plate is lower than the upper end of the inner positioning seat, and a plurality of weight-reducing openings are provided along the height direction of the inner positioning seat;

[0015] The spreading mechanism comprises two double-headed micro electric cylinders arranged outside the upper half of the inner positioning seat, and the two ends of each double-headed micro electric cylinder are connected to each independently driven spreading component through each electric cylinder push rod.

[0016] Furthermore, the independently driven expansion components are symmetrically arranged with respect to each other;

[0017] The independently driven expansion component includes a connecting plate, which is connected to the output end of the double-head micro electric cylinder. The connecting plate is provided with an expansion plate integrally formed therewith, and the outer side of the expansion plate has an arc-shaped guide surface. The independently driven expansion component is L-shaped.

[0018] Furthermore, the double-head micro electric cylinder comprises:

[0019] Battery: It is arranged on the inner positioning seat to provide power for the double-head micro electric cylinder. The battery is a rechargeable lithium battery pack; it has a high energy density and suitable voltage and current output capabilities to meet the working requirements of the electric cylinder.

[0020] Motor: used as the power source of the electric cylinder. The motor is a DC motor. The motor converts the electrical energy provided by the battery into mechanical energy and drives the double-headed micro electric cylinder to move through rotational motion.

[0021] The transmission mechanism is used to convert the rotational motion of the motor into the linear motion of the electric cylinder push rod to push or pull the external load;

[0022] Controller: used to control the operation of the double-head micro electric cylinder, control the start, stop, forward and reverse rotation and speed of the motor according to the set program, and control the speed and thrust of the electric cylinder;

[0023] Sensors: including position sensors and force sensors. Position sensors are used to monitor the position of the electric cylinder push rod in real time and provide feedback to the controller for position control. Force sensors are used to monitor the thrust or pull force output by the electric cylinder to prevent overload.

[0024] Shell: It is arranged on the inner positioning seat to protect the internal components and is also used as a carrier for installing various components. It is made of high-strength aluminum alloy or engineering plastics and has good wear resistance and corrosion resistance.

[0025] Furthermore, the positioning and filling area is provided with an inner support platform and an outer support platform;

[0026] The inner support platform is arranged in the inner ring chain, and the upper end of the inner support platform is provided with a first power inner box body and a second power inner box body, and the first power inner box body and the second power inner box body are connected by a plurality of first reinforcing rods. The outer support platform is located on the outer side of the outer ring chain, and the upper end of the inner half section of the outer support platform is provided with a first power outer box body and a second power outer box body; the first power outer box body and the second power outer box body are connected by a plurality of second reinforcing rods.

[0027] There are two clamping and positioning components, and the clamping and positioning components clamp the woven bag by driving the clamping plate to cooperate with the opening mechanism to prevent the woven bag from slipping when filling the woven bag. Each of the clamping and positioning components is driven by the first power inner box, the second power inner box, the first power outer box and the second power outer box to perform up and down reciprocating motion.

[0028] Further, the clamping and positioning assembly includes a displacement seat, both ends of the displacement seat are provided with guide columns, each of the guide columns is slidably inserted in each of the first power inner box, the second power inner box, the first power outer box and the second power outer box, each of the first power inner box, the second power inner box, the first power outer box and the second power outer box is provided with a lifting cylinder, and the output end of each of the lifting cylinders is connected to the two ends of each of the displacement seats respectively;

[0029] A plurality of adjusting screws are inserted into the displacement seat, and each of the adjusting screws is connected to the displacement seat through a plurality of locking nuts. The lower end of each adjusting screw is also connected to the positioning plate. A clamping cylinder is provided at the lower end of the positioning plate through a C-shaped fixing part, and the clamping plate is provided at the output end of the clamping cylinder. A plurality of anti-slip ridges are provided on the inner side of the clamping plate, and the cross-section of each anti-slip ridge is semicircular. Two guide rods are provided on the outer side of the clamping plate, and each of the guide rods is slidably connected to the lower end of the positioning plate through a support ear.

[0030] Furthermore, the filling station is a manual operation area or a filling machine is provided.

[0031] Further, the sealing conveyor belt is located in the second half of the sealing guiding table, and the first half of the sealing guiding table has an operation and feeding area;

[0032] The guiding assembly includes a first guiding plate and a second guiding plate. The outer sides of the first guiding plate and the second guiding plate are connected to respective positioning tables through a plurality of adjusting screw rods and locked by adjusting nuts. Each of the positioning tables is arranged on the sealing guiding table, and the lower ends of the first guiding plate and the second guiding plate are spaced from the upper end surface of the sealing guiding table;

[0033] Above the first guiding plate and the second guiding plate, there are two sealing guiding strips. The upper ends of each of the sealing guiding strips are connected to an L-shaped bracket through a plurality of connecting columns. The L-shaped bracket is connected to one side of the sealing guiding table, and the sealing machine is located at the output end of the sealing guiding strip;

[0034] A plurality of receiving trays are arranged on the discharging table. The front end of the first guiding plate is flush with the second guiding plate, and the area between the rear end of the first guiding plate and the rear end of the second guiding plate is the discharging area.

[0035] A using method of a device for expanding and sealing woven bags includes

[0036] S1. An operator places a woven bag on the operating table in the loading operation area. The operator is located at the operating station. The second driving unit of the annular transmission unit drives the inner annular chain and the outer annular chain to rotate, driving the expanding mechanism to perform a circular motion. The operator holds the woven bag with the opening facing upward, so that the two independently driven expanding components are located inside the woven bag. Subsequently, the double-headed micro electric cylinder is started according to the program set by the controller. Its motor converts the battery electric energy into mechanical energy, and through the transmission mechanism, the electric cylinder push rod extends, pushing the two independently driven expanding components to move in opposite directions. Through the movement of each independently driven expanding component, the woven bag is expanded and limited. At this time, when the hand is released, the woven bag will not fall;

[0037] S2. The expanded woven bag is conveyed to the positioning and filling area by the annular transmission unit. In the positioning and filling area, the lifting cylinders in the first power inner box body, the second power inner box body, the first power outer box body, and the second power outer box body work, pushing the displacement seat to descend. The guiding columns slide in the corresponding box bodies to play a guiding role until the expanding mechanism is located between the two clamping plates. By starting the clamping cylinder, the clamping plates are pushed to move towards the independently driven expanding components, thereby cooperating with the independently driven expanding components to clamp and position the upper half of the woven bag. Subsequently, the next filling process can be carried out;

[0038] S3. The filling station performs filling manually or by a filling machine. If it is manual filling, then the filling station is the operation area for the operator. If it is machine filling, a filling machine is set at the filling station. During filling, the upper half of the woven bag is positioned by pushing the clamping plate and the independent driving and expanding assembly, and the lower half of the woven bag is limited by the outer plate and the inner positioning seat of the expanding mechanism for the woven bag after it is filled with materials.

[0039] S4. The woven bag that has completed filling moves to the guiding and sealing area along with the annular transmission unit. Subsequently, the operator unloads it onto the sealing conveyor belt. The height of the outer plate is lower than that of the inner positioning seat, which is convenient for the operator to unload. The driving motor drives the sealing conveyor belt to operate, and the woven bag is sequentially conveyed to the guiding assembly and the sealing machine. The first guiding plate and the second guiding plate of the guiding assembly can adjust their positions through the adjusting screw rod and the adjusting nut to limit the lower half of the woven bag, and the two sealing guiding strips guide and limit the upper half sealing area of the woven bag. When it reaches the sealing machine, the limited part of the woven bag is sealed by the sealing machine or manually.

[0040] S5. The sealed woven bag moves to the unloading area along with the sealing conveyor belt. The first driving unit drives the unloading platform to rise. The inner side of the unloading platform is slidably connected to the sealing conveyor belt. The operator moves the woven bag filled with materials onto the receiving tray of the unloading platform. As the number of woven bags filled with materials on the receiving tray increases, the first driving unit drives the unloading platform to move downward to control the height difference between the unloading platform and the upper end of the sealing guiding platform. After unloading, the receiving tray is transported away by a forklift or manually, and an empty receiving tray is placed. Subsequently, the first driving unit drives the unloading platform to move upward to continue unloading.

[0041] The beneficial effects of the present invention are

[0042] 1. The present invention replaces the traditional manual way of expanding the woven bag, and uses the annular transmission unit to cooperate with the expanding mechanism to automatically expand the woven bag, with fast and stable speed. It forms an efficient flow operation from expanding, filling to sealing and unloading, reduces the time difference and space waste between each step, and greatly improves the overall production efficiency, which is suitable for large-scale operation requirements.

[0043] 2. Operations such as expanding, clamping and positioning, and transmission are all completed by the equipment. The operator only needs to perform simple operations such as loading, filling (if it is manual filling), and unloading, avoiding long-term repeated high-intensity physical labor, reducing the labor intensity, reducing the fatigue of workers, and improving the work comfort.

[0044] 3. The clamping and positioning assembly cooperates with the expanding mechanism to stabilize the woven bag during filling, prevent shaking, displacement and slipping, ensure uniform filling, avoid material waste and equipment damage. At the same time, the accuracy and consistency of each filling are guaranteed, and the quality stability of the product is improved.

[0045] 4. The guide component works in coordination with the sealing machine. The guide component guides and limits the sealing area of ​​the upper half of the woven bag, so that the sealing machine can accurately seal the limited part of the woven bag, reducing the errors of manual positioning and operation. Whether it is manual sealing or machine sealing, it can improve the sealing quality, effectively avoid the material leakage caused by loose sealing and poor sealing, and facilitate product storage and transportation;

[0046] 5. The unloading platform can move up and down, and its height difference is controlled by the first drive unit, which is convenient for operators to move the woven bags filled with materials to the receiving tray, reducing physical exertion during handling. And the receiving tray can be transported in a centralized manner, reducing the risk of woven bags falling, reducing material waste and safety accidents;

[0047] 6. The filling station can be either a manual operation area or a filling machine, which can be flexibly selected according to actual production needs; the position of the first guide plate and the second guide plate of the guide assembly can be adjusted by adjusting the screw rod and the adjusting nut, which can adapt to woven bags of different specifications and improve the versatility and applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0049] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0050] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0051] Figure 4 It is a schematic diagram of the structure in which components such as a sealing guide platform are not provided in the present invention.

[0052] Figure 5 yes Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0053] Figure 6 It is a structural diagram of filling machine and other components.

[0054] Figure 7 yes Figure 6 Schematic diagram of the partial enlarged structure at point C in the middle.

[0055] Figure 8 It is a structural schematic diagram of the clamping and positioning components and other parts in the present invention.

[0056] Figure 9 yes Figure 8 Schematic diagram of the local enlarged structure at point D in the middle.

[0057] Figure 10 It is a top view structural diagram of components such as the inner support platform and the outer support platform.

[0058] Figure 11 It is a schematic diagram of the connection structure of the clamping and positioning components and other parts.

[0059] Figure 12 yes Figure 11 Schematic diagram of the local enlarged structure at point E in the middle.

[0060] Figure 13 yes Figure 11 Schematic diagram of the partially enlarged structure at point F in the middle.

[0061] Figure 14 It is a schematic diagram of the three-dimensional structure of the clamping plate.

[0062] Figure 15 It is a structural schematic diagram of a ring-shaped transmission unit provided with a plurality of expansion mechanisms.

[0063] Figure 16 yes Figure 15 Schematic diagram of the local enlarged structure at G in the middle.

[0064] Figure 17 It is a schematic diagram of the connection structure between the connecting plate and components such as the double-head micro electric cylinder.

[0065] Figure 18 It is a structural schematic diagram of a sealing guide table provided with a sealing conveyor belt and other components.

[0066] Figure 19 yes Figure 18 Another schematic diagram of a three-dimensional structure in which no unloading platform is provided.

[0067] Figure 20 It is a schematic diagram of a structure in which two sealing guide strips are arranged on an L-shaped bracket.

[0068] Figure 21 It is a structural schematic diagram of a material receiving tray being arranged on a discharge platform. DETAILED DESCRIPTION

[0069] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0070] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0071] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] like Figures 1 to 21 As shown, a support and sealing device for woven bags comprises an annular transmission unit 1, a loading operation area 2 and a positioning and filling area 3 are sequentially arranged on one side of the annular transmission unit 1, and a guide sealing area 5 and a discharge area 6 are sequentially arranged at the tail section of the annular transmission unit 1;

[0073] The annular transmission unit 1 is provided with a plurality of spreading mechanisms 7, and two adjacent spreading mechanisms 7 are arranged at intervals and driven by the annular transmission unit 1 to perform annular motion;

[0074] The opening mechanism 7 includes an outer plate 8 and an inner positioning seat 9 connected to the annular transmission unit 1, and the outer plate 8 and the inner positioning seat 9 cooperate with each other to limit the position of the woven bag. The inner positioning seat 9 is provided with an independent driving opening component 10, and the independent driving opening component 10 is used to open and limit the woven bag;

[0075] The loading operation area 2 includes an operation table 11 disposed on one side of the annular transmission unit 1, and a plurality of operation stations 12 are disposed along the length direction of the operation table 11;

[0076] The positioning and filling area 3 is provided with a clamping and positioning component 13 and a filling station 15. The clamping and positioning component 13 is used in conjunction with the opening mechanism 7 to limit the position of the woven bag.

[0077] The guide sealing area 5 includes a sealing guide platform 16, a sealing conveyor belt 18 is arranged on the sealing guide platform 16, a driving motor 19 is arranged on one side of the sealing guide platform 16, and is used to drive the sealing conveyor belt 18, a guide component 20 and a sealing machine 21 are arranged above the sealing conveyor belt 18 in sequence, the sealing conveyor belt 18 is used to sequentially transfer the woven bag to the guide component 20, the sealing machine 21 and the unloading area 6, the guide component 20 is used to limit the upper half of the woven bag filled with materials, and the sealing machine 21 is used to seal the limited part of the woven bag;

[0078] The unloading area 6 is located at the tail section of the sealing conveyor belt 18, and a unloading platform 22 is provided at the unloading area 6. The inner side of the unloading platform 22 is slidably connected to the sealing guide platform 16, and a first driving unit 23 is provided on one side of the unloading platform 22 and is used to drive the unloading platform 22 to move up and down.

[0079] The annular transmission unit 1 includes an annular frame 30, on which an inner annular chain 31 and an outer annular chain 32 are arranged, and a second driving unit for driving the inner annular chain 31 and the outer annular chain 32 is arranged on the annular frame 30; in the present invention, the second driving unit adopts an existing structural interface, such as a motor chain transmission type second driving unit: it is mainly composed of a motor, a driving sprocket, a driven sprocket, and a chain. The motor is selected to have a suitable torque and speed, and is installed on the annular frame. The driving sprocket is installed on the output shaft of the motor, and the driven sprocket is installed on the rotating shaft of the inner annular chain and the outer annular chain respectively. After the motor is started, the output shaft drives the driving sprocket to rotate, and the driving sprocket drives the driven sprocket to rotate through the chain, thereby making the inner annular chain and the outer annular chain rotate synchronously. This structure is simple, low in cost, and high in transmission efficiency, but is not limited to the transmission method of the above structure. Any structure in the prior art that can realize the operation of the second driving unit can be selected.

[0080] A plurality of first support blocks 33 are provided on the inner side of the upper end of the inner ring chain 31 by means of a plurality of screws, and the outer side of each of the first support blocks 33 extends toward the outer ring chain 32; a plurality of second support blocks 35 are provided on the upper end of the outer ring chain 32 by means of a plurality of screws, and the inner side of each of the second support blocks 35 extends toward the first support block 33 and is spaced apart from the first support block 33; the lower end of the outer plate 8 of the spreading mechanism 7 is connected to the second support block 35, and the inner positioning seat 9 of the spreading mechanism 7 is connected to the first support block 33.

[0081] The upper end of the outer plate 8 is lower than the upper end of the inner positioning seat 9, and a plurality of weight-reducing openings 36 are provided along the height direction of the inner positioning seat 9;

[0082] The spreading mechanism 7 includes two double-headed micro electric cylinders 37 arranged outside the upper half of the inner positioning seat 9, and the two ends of each double-headed micro electric cylinder 37 are connected to each independently driven spreading component 10 through each electric cylinder push rod 38.

[0083] The independently driven expansion components 10 are arranged symmetrically with each other;

[0084] The independent driving and expanding component 10 includes a connecting plate 39, which is connected to the output end of the double-headed micro electric cylinder 37. A expanding plate 50 integrally formed with the connecting plate 39 is provided on the connecting plate 39. The outer side of the expanding plate 50 has an arc-shaped guiding surface 51, and the independent driving and expanding component 10 is L-shaped.

[0085] The double-headed micro electric cylinder 37 includes;

[0086] A battery: It is arranged on the inner positioning seat 9 to provide power for the double-headed micro electric cylinder 37. The battery is a rechargeable lithium battery pack; it has a high energy density and appropriate voltage and current output capabilities to meet the working requirements of the electric cylinder.

[0087] A motor: It is used as the power source of the electric cylinder. The motor is a DC motor. The motor converts the electrical energy provided by the battery into mechanical energy and drives the double-headed micro electric cylinder 37 to move through rotational motion;

[0088] A transmission mechanism, which is used to convert the rotational motion of the motor into the linear motion of the electric cylinder push rod to realize the pushing or pulling of an external load;

[0089] A controller: It is used to control the operation of the double-headed micro electric cylinder 37, and controls the start, stop, forward and reverse rotation and speed of the motor according to the set program, and controls the speed and thrust of the electric cylinder;

[0090] Sensors: including a position sensor and a force sensor, etc. The position sensor is used to monitor the position of the electric cylinder push rod in real time and feedback it to the controller for position control; the force sensor is used to monitor the thrust or pull force output by the electric cylinder to prevent overload;

[0091] A housing (not shown in the figure): It is arranged on the inner positioning seat 9, which plays a role in protecting the internal components, and at the same time is a carrier for installing each component, and is made of high-strength aluminum alloy or engineering plastic. It has good wear resistance and corrosion resistance.

[0092] Its operating principle is as follows:

[0093] When the double-headed micro electric cylinder 37 needs to work, an external control signal is sent to the controller. After receiving the signal, the controller controls the battery to supply power to the motor according to the preset instructions; the motor starts to rotate under the drive of electrical energy, and the rotational motion of the motor is converted through the transmission mechanism to realize the extending or retracting action of the double-headed micro electric cylinder 37;

[0094] During the operation of the double-headed micro electric cylinder 37, the position sensor monitors the position information of the push rod in real time and feeds it back to the controller. The controller compares the actual position with the target position and adjusts the speed and rotation direction of the motor to make the push rod accurately reach the target position.

[0095] Further preferably, the double-headed micro electric cylinder 37 may also be equipped with a force sensor. When the force output by the double-headed micro electric cylinder 37 reaches a set threshold, the force sensor will transmit a signal to the controller, and the controller can stop the operation of the double-headed micro electric cylinder 37 or take other protective measures to avoid damage to the load or the double-headed micro electric cylinder 37 itself.

[0096] When it is necessary to stop the double-headed micro electric cylinder 37 or change its motion state, the controller again cuts off the power supply of the motor or changes the power supply direction according to the external signal or internal program, thereby realizing the stopping, reversing and other operations of the double-headed micro electric cylinder 37.

[0097] The positioning and filling area 3 is provided with an inner support platform 52 and an outer support platform 53;

[0098] The inner support platform 52 is arranged in the inner ring chain 31, and the upper end of the inner support platform 52 is provided with a first power inner box body 55 and a second power inner box body 56, and the first power inner box body 55 and the second power inner box body 56 are connected by a plurality of first reinforcing rods 57. The outer support platform 53 is located on the outer side of the outer ring chain 32, and the upper end of the inner half section of the outer support platform 53 is provided with a first power outer box body 58 and a second power outer box body 59; the first power outer box body 58 and the second power outer box body 59 are connected by a plurality of second reinforcing rods 60.

[0099] There are two clamping and positioning components 13, and the clamping and positioning components 13 clamp the woven bag by driving the clamping plate 61 to cooperate with the opening mechanism 7 to prevent the woven bag from slipping when filling the woven bag. Each clamping and positioning component 13 is driven by the first power inner box 55, the second power inner box 56, the first power outer box 58 and the second power outer box 59 to perform up and down reciprocating motion.

[0100] The clamping and positioning assembly 13 includes a displacement seat 62, both ends of which are provided with guide posts 63, each of which is slidably inserted in each of the first power inner box 55, the second power inner box 56, the first power outer box 58 and the second power outer box 59, and each of the first power inner box 55, the second power inner box 56, the first power outer box 58 and the second power outer box 59 is provided with a lifting cylinder, and the output end 66 of each lifting cylinder is connected to the two ends of each displacement seat 62 respectively;

[0101] A plurality of adjusting screws 67 are inserted into the displacement seat 62. Each of the adjusting screws 67 is connected to the displacement seat 62 through a plurality of locking nuts 68. The lower ends of the adjusting screws 67 are simultaneously connected to a positioning plate 69. A clamping cylinder 71 is provided at the lower end of the positioning plate 69 through a C-shaped fixing member 70. A clamping plate 61 is provided at the output end of the clamping cylinder 71. A plurality of anti-slip ridges 72 are provided on the inner sides of the clamping plates 61. The cross-section of each of the anti-slip ridges 72 is semi-circular. Two guide rods 73 are provided on the outer sides of the clamping plates 61. Each of the guide rods 73 is slidably connected to the lower end of the positioning plate 69 through an ear 75.

[0102] The filling station 15 is an area for manual operation or is provided with a filling machine 76.

[0103] The sealing conveyor belt 18 is located in the latter half of the sealing guide table 16. The front half of the sealing guide table 16 has an operation and feeding area 77;

[0104] The guiding assembly 20 includes a first guiding plate 78 and a second guiding plate 79. The outer sides of the first guiding plate 78 and the second guiding plate 79 are each connected to each positioning table 82 through a plurality of adjusting lead screws 80 and are locked through adjusting nuts 81. Each of the positioning tables 82 is provided on the sealing guide table 16. The lower ends of the first guiding plate 78 and the second guiding plate 79 are spaced from the upper end surface of the sealing guide table 16;

[0105] Above the first guiding plate 78 and the second guiding plate 79, there are two sealing guiding strips 83. The upper ends of the sealing guiding strips 83 are each connected to an L-shaped bracket 86 through a plurality of connecting columns 85. The L-shaped bracket 86 is connected to one side of the sealing guide table 16. The sealing machine 21 is located at the output end of the sealing guiding strips 83;

[0106] A plurality of receiving trays 87 are provided on the unloading table 22. The front end of the first guiding plate 78 is flush with the second guiding plate 79. The area between the rear end of the first guiding plate 78 and the rear end of the second guiding plate 79 is the unloading area 6.

[0107] A method for using a device for opening and sealing woven bags, including:

[0108] S1. The operator places the woven bag on the operating table 11 in the feeding operation area 2. The operator is located at the operating station 12. The second driving unit of the annular transmission unit 1 drives the inner annular chain 31 and the outer annular chain 32 to rotate, driving the spreading mechanism 7 to perform an annular motion. The operator holds the woven bag with the opening facing upward, so that the two independently driven spreading components 10 are located inside the woven bag. Subsequently, the double-headed micro electric cylinder 37 is started according to the program set by the controller. Its motor converts the battery electric energy into mechanical energy, and the electric cylinder push rod 38 extends through the transmission mechanism, pushing the two independently driven spreading components 10 to move in opposite directions. The movement of each independently driven spreading component 10 spreads and limits the woven bag. At this time, when the hand is released, the woven bag will not fall;

[0109] S2. The annular transmission unit 1 conveys the spread woven bag to the positioning filling area 3. In the positioning filling area 3, the lifting cylinders in the first power inner box 55, the second power inner box 56, the first power outer box 58 and the second power outer box 59 work, pushing the displacement seat 62 to descend. The guide posts 63 slide in the corresponding boxes to play a guiding role until the spreading mechanism 7 is located between the two clamping plates 61. By starting the clamping cylinder 71, the clamping plate 61 is pushed to move towards the independently driven spreading component 10, so as to cooperate with the independently driven spreading component 10 to clamp and position the upper half of the woven bag. Subsequently, the next filling process can be carried out;

[0110] S3. The filling station 15 is for manual filling or filling by a filling machine 76. If it is manual filling, then the filling station 15 is the operating area for the operator. If it is machine filling, the filling machine 76 is set at the filling station 15. During filling, the upper half of the woven bag is positioned by pushing the clamping plate 61 and the independently driven spreading component 10, and the lower half of the woven bag is limited by the outer plate 8 and the inner positioning seat 9 of the spreading mechanism 7 for the woven bag after being filled with materials;

[0111] S4. The woven bag after filling moves to the guiding and sealing area 5 along with the annular transmission unit 1. Subsequently, the operator unloads it onto the sealing conveyor belt 18. The height of the outer plate 8 is lower than that of the inner positioning seat 9, which is convenient for the operator to unload. The driving motor 19 drives the sealing conveyor belt 18 to operate, conveying the woven bag to the guiding component 20 and the sealing machine 21 in sequence. The first guiding plate 78 and the second guiding plate 79 of the guiding component 20 can adjust their positions through the adjusting screw rod 80 and the adjusting nut 81 to limit the lower half of the woven bag. The two sealing guiding strips 83 guide and limit the sealing area of the upper half of the woven bag. When it reaches the sealing machine 21, the limited part of the woven bag is sealed by the sealing machine 21 or manually;

[0112] S5. After the woven bag is sealed, it moves to the unloading area 6 along the sealing conveyor belt 18. The first driving unit 23 drives the unloading platform 22 to rise. The inner side of the unloading platform 22 is slidably connected to the sealing conveyor belt 18. The operator moves the woven bag filled with materials onto the receiving tray 87 of the unloading platform 22. As the number of woven bags filled with materials on the receiving tray 87 increases, the unloading platform 22 is driven by the first driving unit 23 to move downward to control the height difference between the unloading platform 22 and the upper end of the sealing guiding platform 16. After the unloading is completed, the receiving tray 87 is transported away by a forklift or manually, and an empty receiving tray 87 is placed. Subsequently, the first driving unit 23 drives the unloading platform 22 to move upward to continue unloading.

[0113] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning, or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A device for opening and sealing a woven bag, characterized in that, It includes an annular transmission unit (1), on one side of which there are successively arranged a feeding operation area (2) and a positioning and filling area (3), and at the tail section of the annular transmission unit (1) there are successively arranged a guiding and sealing area (5) and a discharging area (6); There are several spreading mechanisms (7) arranged on the annular transmission unit (1), two adjacent spreading mechanisms (7) are arranged at intervals, and are driven by the annular transmission unit (1) to perform circular motion; The spreading mechanism (7) includes an outer side plate (8) and an inner positioning seat (9) connected to the annular transmission unit (1), the outer side plate (8) and the inner positioning seat (9) cooperate with each other to limit the woven bag, and an independent driving and spreading component (10) is arranged on the inner positioning seat (9), and the independent driving and spreading component (10) is used for spreading and limiting the woven bag; The feeding operation area (2) includes an operation table (11) arranged on one side of the annular transmission unit (1), and several operation stations (12) are arranged along the length direction of the operation table (11); A clamping and positioning component (13) and a filling station (15) are arranged at the positioning and filling area (3), and the clamping and positioning component (13) is used in cooperation with the spreading mechanism (7) to limit the woven bag; The guiding and sealing area (5) includes a sealing guiding table (16), a sealing conveyor belt (18) is arranged on the sealing guiding table (16), a driving motor (19) is arranged on one side of the sealing guiding table (16) and is used for driving the sealing conveyor belt (18), a guiding component (20) and a sealing machine (21) are successively arranged above the sealing conveyor belt (18), the sealing conveyor belt (18) is used for successively transporting the woven bag to the guiding component (20), the sealing machine (21) and the discharging area (6), the guiding component (20) is used for limiting the upper half of the woven bag filled with materials, and the sealing machine (21) is used for sealing the limited part of the woven bag; The discharging area (6) is located at the tail section of the sealing conveyor belt (18), a discharging table (22) is arranged at the discharging area (6), the inner side of the discharging table (22) is slidably connected to the sealing guiding table (16), and a first driving unit (23) is arranged on one side of the discharging table (22) and is used for driving the discharging table (22) to move up and down.

2. The opening support device for a woven bag according to claim 1, characterized in that: The annular transmission unit (1) includes an annular frame body (30), an inner annular chain (31) and an outer annular chain (32) are arranged on the annular frame body (30), and a second driving unit for driving the inner annular chain (31) and the outer annular chain (32) is arranged on the annular frame body (30); On the inner side of the upper end of the inner annular chain (31), a number of first support blocks (33) are provided through a number of screws. The outer sides of the first support blocks (33) extend towards the outer annular chain (32). On the upper end of the outer annular chain (32), a number of second support blocks (35) are provided through a number of screws. The inner sides of the second support blocks (35) extend towards the first support blocks (33) and are arranged at intervals from the first support blocks (33). The lower end of the outer plate (8) of the spreading mechanism (7) is connected to the second support block (35), and the inner positioning seat (9) of the spreading mechanism (7) is connected to the first support block (33).

3. The opening device for a woven bag as claimed in claim 2, wherein: The upper end of the outer plate (8) is lower than the upper end of the inner positioning seat (9). A number of weight reduction openings (36) are provided along the height direction of the inner positioning seat (9). The spreading mechanism (7) includes two double-headed micro electric cylinders (37) arranged on the outer side of the upper half of the inner positioning seat (9). The two ends of each double-headed micro electric cylinder (37) are respectively connected to each independent driving spreading component (10) through each electric cylinder push rod (38).

4. The opening support device for woven bags as described in claim 3, characterized in that: Each of the independent driving spreading components (10) is symmetrically arranged with each other. The independent driving spreading component (10) includes a connecting plate (39). The connecting plate (39) is connected to the output end of the double-headed micro electric cylinder (37). A spreading plate (50) integrally formed with the connecting plate (39) is arranged on the connecting plate (39). The outer side of the spreading plate (50) has an arc-shaped guiding surface (51). The independent driving spreading component (10) is in an L shape.

5. The opening support device for woven bags according to claim 4, characterized in that: The double-headed micro electric cylinder (37) includes; Battery: Arranged on the inner positioning seat (9) to provide power for the double-headed micro electric cylinder (37). The battery is a rechargeable lithium battery pack. Motor: Used as the power source of the electric cylinder. The motor is a DC motor. The motor converts the electrical energy provided by the battery into mechanical energy and drives the double-headed micro electric cylinder (37) to move through rotational motion. Transmission mechanism: Used to convert the rotational motion of the motor into the linear motion of the electric cylinder push rod to realize the pushing or pulling of an external load. Controller: Used to control the operation of the double-headed micro electric cylinder (37), and control the start, stop, forward and reverse rotation and speed of the motor according to the set program, and control the speed and thrust of the electric cylinder. Sensor: Including a position sensor, a force sensor, etc. The position sensor is used to monitor the position of the electric cylinder push rod in real time and feedback it to the controller for position control. The force sensor is used to monitor the thrust or pull force output by the electric cylinder to prevent overload. Outer shell: Arranged on the inner positioning seat (9), which plays a role in protecting the internal components and is also a carrier for installing each component. It is made of high-strength aluminum alloy or engineering plastic.

6. The sealing opening device for woven bags according to claim 5, characterized in that: An inner support platform (52) and an outer support platform (53) are provided at the positioning and filling area (3). The inner support platform (52) is arranged in the inner ring chain (31); the upper end of the inner support platform (52) is provided with a first power inner box (55) and a second power inner box (56); the first power inner box (55) and the second power inner box (56) are connected by a plurality of first reinforcing rods (57); the outer support platform (53) is located on the outer side of the outer ring chain (32); the upper end of the inner half section of the outer support platform (53) is provided with a first power outer box (58) and a second power outer box (59); the first power outer box (58) and the second power outer box (59) are connected by a plurality of second reinforcing rods (60) The number of the clamping and positioning components (13) is two. The clamping and positioning components (13) cooperate with the opening mechanism (7) by driving the clamping plate (61) to clamp the woven bag to prevent the woven bag from slipping when filling the woven bag. Each of the clamping and positioning components (13) is driven by the first power inner box (55), the second power inner box (56), the first power outer box (58) and the second power outer box (59) to perform up and down reciprocating motion.

7. The opening and sealing device for a woven bag according to claim 6, characterized in that: The clamping and positioning assembly (13) includes a displacement seat (62), both ends of which are provided with guide columns (63), each of which is slidably inserted in each of the first power inner box (55), the second power inner box (56), the first power outer box (58) and the second power outer box (59), and each of which is provided with a lifting cylinder, and the output end (66) of each of which is connected to both ends of each of the displacement seats (62); A plurality of adjusting screws (67) are inserted into the displacement seat (62), and each of the adjusting screws (67) is connected to the displacement seat (62) through a plurality of locking nuts (68). The lower end of each of the adjusting screws (67) is also connected to the positioning plate (69). A clamping cylinder (71) is provided at the lower end of the positioning plate (69) through a C-shaped fixing piece (70). The output end of the clamping cylinder (71) is provided with the clamping plate (61). The inner side of the clamping plate (61) is provided with a plurality of anti-skid ridges (72), and the cross section of each of the anti-skid ridges (72) is semicircular. Two guide rods (73) are provided on the outer side of the clamping plate (61), and each of the guide rods (73) is slidably connected to the lower end of the positioning plate (69) through a support ear (75).

8. The sealing opening device for woven bags according to claim 7, characterized in that: The filling station (15) is a manual operation area or is provided with a filling machine (76).

9. The opening support device for woven bags as described in claim 8, characterized in that: The sealing conveyor belt (18) is located at the rear half of the sealing guide platform (16), and the front half of the sealing guide platform (16) has an operation unloading area (77); The guiding assembly (20) includes a first guiding plate (78) and a second guiding plate (79). The outer sides of the first guiding plate (78) and the second guiding plate (79) are each connected to the respective positioning platforms (82) through a plurality of adjusting screw rods (80), and are locked through adjusting nuts (81). Each of the positioning platforms (82) is arranged on the sealing guiding platform (16). The lower ends of the first guiding plate (78) and the second guiding plate (79) are spaced from the upper end surface of the sealing guiding platform (16). Above the first guiding plate (78) and the second guiding plate (79), there are two sealing guiding strips (83). The upper ends of each of the sealing guiding strips (83) are connected to an L-shaped bracket (86) through a plurality of connecting columns (85). The L-shaped bracket (86) is connected to one side of the sealing guiding platform (16). The sealing machine (21) is located at the output end of the sealing guiding strips (83). A plurality of receiving trays (87) are arranged on the discharging platform (22). The front end of the first guiding plate (78) is flush with the second guiding plate (79). The area between the rear end of the first guiding plate (78) and the rear end of the second guiding plate (79) is the discharging area (6).

10. A method for using a device for opening and sealing a woven bag, characterized in that: S1. The operator places the woven bag on the operating table (11) in the loading operation area (2). The operator is located at the operating station (12). The second driving unit of the annular transmission unit (1) drives the inner annular chain (31) and the outer annular chain (32) to rotate, driving the opening mechanism (7) to perform a circular motion. The operator holds the woven bag with the opening facing upwards, so that the two independently driven opening components (10) are located inside the woven bag. Subsequently, the double-headed micro electric cylinder (37) is started according to the program set by the controller. Its motor converts the battery electrical energy into mechanical energy, and through the transmission mechanism, the electric cylinder push rod (38) extends, pushing the two independently driven opening components (10) to move in opposite directions. Through the movement of each independently driven opening component (10), the woven bag is opened and limited, and at this time, when the hand is released, the woven bag will not fall. S2. The opened woven bag is conveyed to the positioning filling area (3) by the annular transmission unit (1). In the positioning filling area (3), the lifting cylinders in the first power inner box body (55), the second power inner box body (56), the first power outer box body (58) and the second power outer box body (59) work, pushing the displacement seat (62) to descend. The guiding columns (63) slide in the corresponding box bodies to play a guiding role until the opening mechanism (7) is located between the two clamping plates (61). By starting the clamping cylinder (71), the clamping plates (61) are pushed to move towards the independently driven opening components (10), so as to cooperate with the independently driven opening components (10) to clamp and position the upper half of the woven bag, and then the next filling process can be carried out. S3. The filling station (15) performs filling manually or by a filling machine (76). If it is manual filling, the filling station (15) is the operating area for the operator. If it is machine filling, the filling machine (76) is installed at the filling station (15). During filling, the upper half of the woven bag is positioned by pushing the clamping plate (61) and the independently driven expanding assembly (10), and the lower half of the woven bag is limited by the outer plate (8) and the inner positioning seat (9) of the expanding mechanism (7) after the woven bag is filled with materials. S4. The woven bag after filling moves to the guiding and sealing area (5) with the annular transmission unit (1), and then the operator unloads it onto the sealing conveyor belt (18). The height of the outer plate (8) is lower than that of the inner positioning seat (9), which is convenient for the operator to unload. The driving motor (19) drives the sealing conveyor belt (18) to operate, and the woven bag is sequentially conveyed to the guiding assembly (20) and the sealing machine (21). The first guiding plate (78) and the second guiding plate (79) of the guiding assembly (20) can adjust their positions through the adjusting screw rod (80) and the adjusting nut (81) to limit the lower half of the woven bag, and the two sealing guiding strips (83) guide and limit the upper half sealing area of the woven bag. When it reaches the sealing machine (21), the limited part of the woven bag is sealed by the sealing machine (21) or manually. S5. The woven bag after sealing moves to the unloading area (6) with the sealing conveyor belt (18). The first driving unit (23) drives the unloading platform (22) to rise. The inner side of the unloading platform (22) is slidably connected to the sealing conveyor belt (18). The operator moves the woven bag filled with materials onto the receiving tray (87) of the unloading platform (22). As the number of woven bags filled with materials on the receiving tray (87) increases, the first driving unit (23) drives the unloading platform (22) to move downward to control the height difference between the unloading platform (22) and the upper end of the sealing guiding platform (16). After unloading, the receiving tray (87) is transported away by a forklift or manually, and an empty receiving tray (87) is placed. Then the first driving unit (23) drives the unloading platform (22) to move upward to continue unloading.

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