Packaging device for glass fiber production and packaging method thereof

Abstract

The invention belongs to the technical field of glass fiber production, and particularly relates to a packaging device for glass fiber production and a packaging method thereof.The packaging device comprises a discharging valve, a connecting sleeve, a supporting plate, a first telescopic component, a swing rod, a second telescopic component, elastic cloth, a dust removal bag, a mounting plate and a negative pressure suction component; through dual control in the vertical direction and the horizontal direction, the lower ends of the swing rods are folded and close to each other, so that the lower ends of the swing rods are conveniently inserted into an opened packaging bag opening, and under the dual control in the vertical direction and the horizontal direction, the packaging bag opening can be conveniently opened. The lower end of the swing rod rapidly supports the bag opening of the packaging bag and communicates with the interior of the packaging bag through the elastic cloth arranged on the outer side of the swing rod in a sleeving mode, and then under the condition that the negative pressure suction component is started, the short glass fiber materials are conveyed into the packaging bag below; and under the action of the suction force of the negative pressure, dust doped in the short glass fiber material is sucked into the dust removal bag, so that the quality of the short glass fiber material is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass fiber production, and specifically relates to a packing device and a packing method for glass fiber production. Background Art

[0002] Chopped glass fiber is also known as glass fiber chopped strand. The quartz sand is melted at high temperature, and the original strand drawn by a special wetting agent (softening agent) is cut online by a wet method or the product glass fiber is chopped.

[0003] The conventional packaging form of chopped glass fiber is to be packed in a paper bag with a composite plastic film, 30 kg per bag, and then placed on a pallet, 900 kg per pallet, and the stack height of the pallet is not more than 2 layers.

[0004] Chopped glass fiber is mainly used to enhance the performance of thermoplastic plastics. Due to its good cost performance, it is especially suitable for being compounded with resin and used as a reinforcing material for the shells of automobiles, trains, and ships: used for high-temperature needle-punched felts, automotive sound-absorbing sheets, hot-rolled steel, etc. Its products are widely used in the fields of automobiles, construction, aviation, daily necessities, etc. Typical products include automotive parts, electronic and electrical products, mechanical products, etc. It can also be used as an inorganic fiber with excellent anti-seepage and anti-cracking properties for enhancing mortar concrete, and is also a highly competitive product for replacing polyester fiber, lignin fiber, etc. for enhancing mortar concrete. It can also improve the high-temperature stability, low-temperature anti-cracking property, and anti-fatigue property of asphalt concrete and extend the service life of road surfaces, etc.

[0005] During the cutting process of short glass fiber, cutting dust and overly short glass fiber will be generated. If the cutting dust and overly short glass fiber are mixed in the short glass fiber material, it will cause a reduction in the strength of materials such as high-strength concrete and high-strength composite materials prepared with this glass fiber material, and thus cause serious consequences. However, it is necessary to solve the problem of preventing dust diffusion during the process of loading short glass fiber into the packaging bag, so the bag mouth of the packaging bag needs to be sealed with the discharge port. At the same time, it is necessary to solve how to quickly connect and seal the bag mouth of the packaging bag with the discharge port, and even how to achieve automatic bagging. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, the present invention provides a packing device and a packing method for glass fiber production. The present invention mainly solves the problem of dust diffusion during the process of loading short glass fiber into the packaging bag, and the problem of how to quickly connect and seal the bag mouth of the packaging bag with the discharge port.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: The present invention provides a packing device for glass fiber production, including a discharge valve, a connecting sleeve, a support plate, a first telescopic member, a swing rod, a second telescopic member, an elastic cloth, a dust removal bag, a mounting plate, and a negative pressure suction member; the discharge valve is installed below the discharge port; the connecting sleeve is sleeved outside the discharge valve; the first telescopic member is used to drive the connecting sleeve to move vertically; the support plate is fixedly connected below the connecting sleeve; the dust removal bags are uniformly spaced and installed on the support plate; the inlet edge of the dust removal bag is connected to the edge of the hole on the support plate; the mounting plate is arranged above the support plate; the mounting plate is fixedly connected to the discharge pipe; the swing rods are uniformly spaced at the edge of the mounting plate; the upper end of the swing rod is hinged to the output end of the second telescopic member; the second telescopic member is connected to the mounting plate; limiting grooves are symmetrically arranged on both side surfaces of the swing rod; the support plate is polygonal, and limiting pins are arranged at the corners of the support plate; the protruding end of the limiting pin slides in the limiting groove; the elastic cloth is sleeved outside the swing rod; the elastic cloth covers the area between the support plate and the mounting plate; suction holes are arranged on the mounting plate, and the outside of the suction holes is communicated with the negative pressure suction member; the negative pressure suction member is used to suck the space surrounded by the support plate, the mounting plate, and the elastic cloth.

[0008] Preferably, slits are uniformly spaced vertically along the outer edge of the lower edge of the elastic cloth.

[0009] Preferably, a support rod is slidably connected to the inner side of the swing rod; gear teeth are arranged on the support rod; the gear teeth on the support rod are meshed and driven with the gear on the output shaft of the first motor through a gear set.

[0010] Preferably, the lower end of the support rod is connected to an elastic support strip; the outer diameter of the elastic support strip is smaller than that of the support rod.

[0011] Preferably, an anti-backflow structure is arranged inside the dust removal bag.

[0012] Preferably, the anti-backflow structure includes an anti-static cloth and an elastic rope; the anti-static cloth is funnel-shaped; the edge of the large mouth end of the anti-static cloth is connected to the edge of the bag mouth of the dust removal bag; the edge of the small mouth end of the anti-static cloth is connected to the annular elastic rope.

[0013] Preferably, the edge of the large mouth end of the anti-static cloth is connected to the edge of the bag mouth of the dust removal bag through a telescopic cloth embedded with a tensile sensor; the telescopic cloth is a ring structure and has elasticity; the detection ends of the tensile sensor are respectively connected to the edge of the large mouth end of the anti-static cloth and the edge of the bag mouth of the dust removal bag.

[0014] Preferably, the first telescopic member includes a first electric push rod; the output end of the first electric push rod is connected to the upper end of the connecting sleeve; the cylinder body of the first electric push rod is fixedly connected to the discharge valve; The second telescopic member includes a second electric push rod and a sliding hinge seat; a sliding groove is provided on the mounting plate corresponding to the position of the swing rod; the sliding hinge seat is slidably connected in the sliding groove; one end of the sliding hinge seat is hinged to the upper end of the swing rod through a hinge portion; the other end of the sliding hinge seat is connected to the output end of the second electric push rod; the cylinder body of the second electric push rod is fixedly connected to the mounting plate.

[0015] Both the first electric push rod and the second electric push rod are connected to the controller through electrical signals.

[0016] Preferably, the packing device further includes a conveyor line and a bag-opening mechanism; the conveyor line is arranged below the discharge valve; a limiting frame for placing the packaging bag is arranged at one end of the conveyor line; an anti-toppling frame is arranged at the other end of the conveyor line; the bag-opening mechanisms are symmetrically arranged on both sides of the conveyor line; The bag-opening mechanism includes a transposition unit, a telescopic unit and an adsorption unit; the transposition unit is connected to the side of the conveyor line; the transposition unit is used to drive the telescopic unit to move and transpose; the telescopic unit is used to drive the adsorption unit to extend and retract; the adsorption unit is used to adsorb the packaging bag.

[0017] A glass fiber packaging method includes the following steps: S1: The packaging bags are evenly spaced between the two limiting frames on the conveyor line and then move to one end of the limiting frame along with the conveyor line. The sensor in the waiting bag-opening mechanism at this place detects the approach of the packaging bag and transmits an electrical signal to the controller. The controller controls the telescopic unit to drive the adsorption unit to extend through the electrical signal. When the adsorption unit contacts the packaging bag, the controller controls the adsorption mechanism to adsorb the packaging bag through the electrical signal. At the same time when the adsorption unit contacts the packaging bag, the controller controls the transposition unit to drive the telescopic unit to move synchronously with the conveyor line through the electrical signal. Then when the packaging bag moves to directly below the discharge valve, the controller controls the conveyor line to stop, and at the same time the controller controls the telescopic units on both sides to contract synchronously, thereby realizing the opening of the bag mouth of the packaging bag; S2: The controller controls the first telescopic member to drive the connecting sleeve to move upward through the electrical signal, thereby driving the limit pin on the support plate to slide along the limit groove on the swing rod. At the same time, the controller controls the second telescopic member to drive the swing rod to move towards the periphery of the mounting plate through the electrical signal. Through the dual control in the vertical direction and the horizontal direction above, the lower ends of the swing rod are mutually closed and approach each other, and the elastic cloth sleeved outside the swing rod is also deformed into an inverted cone shape, thereby facilitating the insertion of the lower end of the swing rod into the opened bag mouth of the packaging bag; S3: After the lower end of the swing rod is inserted into the bag opening of the packaging bag, the controller controls the first telescopic component to drive the connecting sleeve to move downward, thereby driving the limit pin to slide downward along the limit groove. At the same time, the controller controls the second telescopic component to drive the upper end of the swing rod to approach the edge of the mounting plate, thereby enabling the lower end of the swing rod to quickly support the bag opening of the packaging bag under dual control in the vertical and horizontal directions and to communicate with the inside of the packaging bag by using the elastic cloth sleeved on the outer side of the swing rod; S4: Then the controller controls the transposition unit to move to the position where the waiting packaging bag is located, and the controller controls the telescopic unit and the adsorption unit to adsorb the waiting packaging bag, waiting for the previous packaging bag to be loaded; S5: After the connection with the packaging bag is completed, the controller controls the negative pressure suction component to work through an electrical signal, and then the negative pressure suction component sucks the space surrounded by the support plate, the mounting plate and the elastic cloth. After the negative pressure suction component is turned on, the controller controls the discharge valve to open through an electrical signal, and then the short glass fiber material transported in the discharge pipe is transported from the discharge valve to the packaging bag below. During the process, the opened negative pressure suction component sucks the short glass fiber material falling from the discharge valve; S6: After the loading is completed, the controller controls the first telescopic component through an electrical signal to drive the connecting sleeve to move upward, thereby driving the limit pin on the support plate to slide along the upper limit groove of the swing rod. At the same time, the controller controls the second telescopic component through an electrical signal to drive the swing rod to move toward the periphery of the mounting plate. Through the above dual control in the vertical and horizontal directions, the lower ends of the swing rods are brought closer to each other; S7: After the lower ends of the swinging rods are retracted and moved close to each other, the controller controls the conveyor line to move the packaging bag filled with short glass fibers between the two anti-falling racks. At the same time, the controller controls the transposition unit to drive the telescopic unit and the waiting packaging bag to move to the bottom of the discharge valve. The controller then controls the telescopic unit to open the bag mouth of the packaging bag. S8: loop the steps of S2-S7.

[0018] The beneficial effects of the present invention are as follows: 1. In the present invention, through the dual control in the vertical and horizontal directions, the lower ends of the swing arms are brought together and close to each other, and the elastic cloth sleeved on the outside of the swing arms is also deformed into an inverted cone shape, thereby facilitating the insertion of the lower end of the swing arm into the opened opening of the packaging bag; after the lower end of the swing arm is inserted into the bag opening of the packaging bag, the controller controls the first telescopic component to drive the connecting sleeve to move downward, thereby driving the limit pin to slide downward along the limit groove, and at the same time, the controller controls the second telescopic component to drive the upper end of the swing arm to approach the edge of the mounting plate, and then under the dual control in the vertical and horizontal directions, the lower end of the swing arm quickly supports the bag opening of the packaging bag and uses the elastic cloth sleeved on the outside of the swing arm to achieve communication with the inside of the packaging bag, thereby preparing for subsequent loading and suction dust removal. After the present invention completes the connection with the packaging bag, the controller controls the operation of the negative pressure suction component through an electrical signal, and then the negative pressure suction component sucks the space surrounded by the support plate, the mounting plate and the elastic cloth. After the negative pressure suction component is turned on, the controller controls the discharge valve to open through an electrical signal, and then the short glass fiber material transported in the discharge pipe is transported from the discharge valve to the packaging bag below. During the process, the opened negative pressure suction component sucks the short glass fiber material falling from the discharge valve. Since the short glass fibers are relatively dispersed during the falling process, the suction force of the negative pressure Under the action, the dust mixed inside and the too short glass fiber are sucked into the dust removal bag, thereby improving the quality of the short glass fiber material, thereby ensuring the quality of the composite material prepared by the short glass fiber. Through the above packaging process, the short glass fiber material can be packaged with high quality. The automatic folding and automatic propping up of the bag mouth structure not only improves the packaging efficiency, but also lays the foundation for the later automatic bagging; and the connection and sealing are also well achieved by propping up the bag mouth from the inside of the packaging bag, thereby ensuring the closedness of the negative pressure suction of dust; 2. In the process of the lower end of the swing rod in the present invention stretching the packaging bag, the lower end of the elastic cloth will also be stretched, and then the slits evenly spaced vertically on the outer side of the lower edge of the elastic cloth will open, thereby forming arc grooves, so that gaps are evenly spaced between the elastic cloth and the packaging bag, and then when the negative pressure suction component sucks the space surrounded by the support plate, the mounting plate and the elastic cloth, the external air replenishes the air in the packaging bag through the evenly spaced arc grooves between the elastic cloth and the packaging bag, and the air entering along the arc groove has a large flow rate because it passes through the small gap, and then the dust on the inner wall of the bag opening of the packaging bag due to electrostatic adsorption is flushed, thereby reducing the amount of dust adsorbed on the inner wall of the bag opening of the packaging bag, reducing the impact of dust, and thereby improving the strength of the sealing of the bag opening of the subsequent packaging bag; 3. After the lower end of the swing rod holds the bag mouth of the packaging bag in the present invention, the controller controls the first motor to rotate through an electrical signal. Through the transmission of the gear on the output shaft and the gear set, the support rod is driven to move downward along the chute on the swing rod until the lower end of the support rod touches the bottom of the packaging bag. The controller controls the first motor to stop and electromagnetic brake. Then, when the negative pressure suction component sucks the space surrounded by the support plate, the mounting plate and the elastic cloth, the support rod can support the packaging bag, preventing the situation that the packaging bag is concave due to excessive internal negative pressure, which may lead to the short glass fiber material not being able to be normally loaded into the packaging bag. Therefore, the setting of the support rod ensures the stability of loading; when the packaging bag is finished loading, the controller controls the first motor to drive the lower end of the support rod to be withdrawn from the packaging bag through the gear set. To solve the problem that the packaging bag is easily concave due to negative pressure suction, a magnet adsorption structure or a clamping and fixing structure can also be added to the bottom of the packaging bag; 4. After the negative pressure suction component is turned on in the present invention, the dust in the falling short glass fiber material is sucked and enters from the large mouth end of the anti-static cloth. Under the action of the suction force, the anti-static cloth expands, and then the elastic rope at the small mouth end of the anti-static cloth is stretched and its diameter becomes larger. The dust entering the large mouth end of the anti-static cloth passes through the annular elastic rope and enters the dust removal bag; when the negative pressure suction component is damaged or the negative pressure suction component stops in the middle, without the suction force provided by the negative pressure suction component, the anti-static cloth loses the force to expand, and then the elastic rope shrinks its diameter by itself, and then drives the small mouth end of the anti-static cloth to tighten, thus realizing the effect that the anti-backflow structure automatically closes when the negative pressure suction component stops or is closed. In this case, the anti-backflow structure can be automatically closed and opened without complicated control. The elastic rope can be made of rubber material, and the elastic force of the elastic rope needs to be designed in matching with the suction power of the negative pressure suction component. The function of the anti-static cloth itself to prevent static electricity and adsorb dust can also further reduce the dust adhering to the anti-static cloth and then falling back into the packaging bag, thus better ensuring the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings.

[0020] Figure 1 is the overall structural schematic diagram of the packing device of the present invention; Figure 2 is the internal structural schematic diagram of the packing device of the present invention from the first perspective; Figure 3 is the connection schematic diagram of the discharge valve and the connecting sleeve in the present invention; Figure 4 is the structural schematic diagram of the anti-backflow structure in the present invention; Figure 5 is the internal structural schematic diagram of the packing device of the present invention from the second perspective; Figure 6It is a schematic structural diagram of the second telescopic component in the present invention; Figure 7 It is a schematic diagram of the force deformation of the slotted opening in the present invention; Figure 8 It is a schematic overall structural diagram of the swing rod in the retracted state in the present invention; Figure 9 It is a schematic connection diagram of the gear set and the first motor in the present invention; In the figure: discharge valve 1, connecting sleeve 2, support plate 3, first telescopic component 4, swing rod 5, support rod 51, tooth 511, gear set 52, first motor 53, elastic support strip 54, second telescopic component 6, second electric push rod 61, sliding hinge seat 62, elastic cloth 7, slotted opening 71, dust removal bag 8, anti-backflow structure 81, anti-static cloth 811, elastic rope 812, mounting plate 9, negative pressure suction component 10, conveyor line 11, limit frame 111, anti-tip frame 112, opening mechanism 12, transposition unit 121, telescopic unit 122, adsorption unit 123. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1 to 5 shown, a packing device for glass fiber production includes a discharge valve 1, a connecting sleeve 2, a support plate 3, a first telescopic component 4, a swing rod 5, a second telescopic component 6, an elastic cloth 7, a dust removal bag 8, a mounting plate 9 and a negative pressure suction component 10; the discharge valve 1 is installed below the discharge port; the connecting sleeve 2 is sleeved outside the discharge valve 1; the first telescopic component 4 is used to drive the connecting sleeve 2 to move vertically; the support plate 3 is fixedly connected below the connecting sleeve 2; the dust removal bags 8 are evenly spaced and installed on the support plate 3; the inlet edge of the dust removal bag 8 is connected to the edge of the hole on the support plate 3; the mounting plate 9 is arranged above the support plate 3; the mounting plate 9 is fixedly connected to the discharge pipe; the swing rods 5 are evenly spaced at the edge of the mounting plate 9; the upper end of the swing rod 5 is hinged to the output end of the second telescopic component 6; the second telescopic component 6 is connected to the mounting plate 9; limiting grooves are symmetrically arranged on both side surfaces of the swing rod 5; the support plate 3 is polygonal, and limiting pins are arranged at the corners of the support plate 3; the protruding ends of the limiting pins slide in the limiting grooves; the elastic cloth 7 is sleeved outside the swing rod 5; the elastic cloth 7 covers the area between the support plate 3 and the mounting plate 9; suction holes are arranged on the mounting plate 9, and the outside of the suction holes is communicated with the negative pressure suction component 10; the negative pressure suction component 10 is used to suck the space surrounded by the support plate 3, the mounting plate 9 and the elastic cloth 7.

[0023] Before the packaging bag needs to be put on, the controller controls the first telescopic component 4 through an electrical signal to drive the connecting sleeve 2 to move upward, thereby driving the limit pin on the support plate 3 to slide along the limit groove of the swing rod 5. At the same time, the controller controls the second telescopic component 6 through an electrical signal to drive the swing rod 5 to move toward the periphery of the mounting plate 9. Through the above dual control in the vertical and horizontal directions, the lower ends of the swing rod 5 are brought close to each other, and the elastic cloth 7 sleeved on the outside of the swing rod 5 is also deformed into an inverted cone shape, thereby facilitating the insertion of the lower end of the swing rod 5 into the stretched packaging bag. In the bag opening; after the lower end of the swing rod 5 is inserted into the bag opening of the packaging bag, the controller controls the first telescopic component 4 to drive the connecting sleeve 2 to move downward, and then drives the limit pin to slide downward along the limit groove. At the same time, the controller controls the second telescopic component 6 to drive the upper end of the swing rod 5 to approach the edge of the mounting plate 9, and then under the dual control of the vertical and horizontal directions, the lower end of the swing rod 5 quickly supports the bag opening of the packaging bag and uses the elastic cloth 7 sleeved on the outside of the swing rod 5 to achieve communication with the inside of the packaging bag, thereby preparing for subsequent loading and suction dust removal.

[0024] The cutting process of short glass fibers will produce cutting dust and glass fibers that are too short. If the cutting dust and glass fibers that are too short are mixed in the material of the short glass fibers, the strength of materials such as high-strength concrete and high-strength composite materials prepared with the glass fiber materials will be reduced, leading to serious consequences. In this case, after completing the connection with the packaging bag, the controller controls the operation of the negative pressure suction component 10 through an electrical signal, and then the negative pressure suction component 10 sucks the space surrounded by the support plate 3, the mounting plate 9 and the elastic cloth 7. After the negative pressure suction component 10 is turned on, the controller controls the discharge valve 1 to open through an electrical signal, and then the short glass fiber material transported in the discharge pipe is transported from the discharge valve 1 to the packaging bag below. During the process, the opened negative pressure suction component 10 sucks the short glass fiber material falling from the discharge valve 1. Since the short glass fibers are relatively dispersed during the falling process, Under the suction force of negative pressure, the dust mixed inside and the glass fibers that are too short are sucked into the dust removal bag 8, thereby improving the quality of the short glass fiber material, and thus ensuring the quality of the composite material prepared from the short glass fiber. The above packaging process can achieve high-quality packaging of the short glass fiber material, wherein the bag mouth structure that realizes automatic folding and automatic propping up not only improves the packaging efficiency, but also lays the foundation for the later automatic bagging; and by propping up the bag mouth from the inside of the packaging bag, relative sealing is also achieved, thereby ensuring the closedness of the dust sucked by negative pressure.

[0025] like Figure 7 As shown, slits 71 are evenly spaced vertically along the outer side of the lower edge of the elastic cloth 7 .

[0026] During the process of the lower end of the swing rod 5 stretching open the packaging bag, the lower end of the elastic cloth 7 will also be stretched. As a result, the slits 71 evenly spaced along the outer side of the lower edge of the elastic cloth 7 in the vertical direction will open, thereby forming an arc-shaped groove. Consequently, a uniformly spaced gap is left between the elastic cloth 7 and the packaging bag. When the negative pressure suction component 10 suctions the space surrounded by the support plate 3, the mounting plate 9, and the elastic cloth 7, the external air replenishes the air inside the packaging bag through the arc-shaped groove with a uniformly spaced gap between the elastic cloth 7 and the packaging bag. Since the air entering along the arc-shaped groove passes through fine slits, its flow rate is relatively large. Thus, it flushes the dust electrostatically adsorbed on the inner wall of the bag mouth of the packaging bag, thereby reducing the amount of dust adsorbed on the inner wall of the bag mouth of the packaging bag, minimizing the influence of dust, and improving the sealing strength of the subsequent bag mouth of the packaging bag.

[0027] As Figures 8 to 9 shown, a support rod 51 is slidably connected to the inner side of the swing rod 5; a gear 511 is provided on the support rod 51; the gear 511 on the support rod 51 is meshed and driven with the gear on the output shaft of the first motor 53 through a gear set 52.

[0028] After the lower end of the swing rod 5 holds the bag mouth of the packaging bag, the controller controls the first motor 53 to rotate through an electrical signal. Through the transmission of the gear on the output shaft and the gear set 52, the support rod 51 is driven to move downward along the chute on the swing rod 5 until the lower end of the support rod 51 abuts against the bottom of the packaging bag. The controller controls the first motor 53 to stop and electromagnetic braking. Thus, when the negative pressure suction component 10 suctions the space surrounded by the support plate 3, the mounting plate 9, and the elastic cloth 7, the support rod 51 can support the packaging bag, preventing the situation where the packaging bag is concave due to excessive internal negative pressure, which may cause the short glass fiber material to be unable to be normally loaded into the packaging bag. Therefore, the setting of the support rod 51 ensures the stability of loading; when the packaging bag finishes loading, the controller controls the first motor 53 to drive the lower end of the support rod 51 to be withdrawn from the packaging bag through the gear set 52. To solve the problem that the packaging bag is prone to being concave due to negative pressure suction, a magnet adsorption structure or a clamping and fixing structure can also be added to the bottom of the packaging bag.

[0029] As Figures 8 to 9 shown, an elastic support strip 54 is connected to the lower end of the support rod 51; the outer diameter of the elastic support strip 54 is smaller than the outer diameter of the support rod 51.

[0030] By connecting an elastic support strip 54 to the lower end of the support rod 51, when the lower end of the support rod 51 approaches the bottom of the packaging bag, the elastic support strip 54 contacts the bottom of the packaging bag first, thereby preventing the lower end of the support rod 51 from puncturing the packaging bag, which may lead to the lack of guarantee for the later sealed storage environment of the short glass fiber material. In this case, after the elastic support strip 54 contacts the packaging bag, it bends and deforms, which not only realizes the pressing of the bottom of the packaging bag and the support around it, but also when the support rod 51 is withdrawn from the short glass fiber contained in the packaging bag, since the elastic support strip 54 can deform, there is no jamming when the support rod 51 and the elastic support strip 54 are withdrawn, thereby increasing the stability of the device operation.

[0031] As Figures 4 to 5 shown, an anti-backflow structure 81 is provided inside the dust removal bag 8.

[0032] Since the dust removal bag 8 is arranged with its opening facing downwards, in order to prevent the dust filtered in the dust removal bag 8 from flowing back and re-entering the lower packaging bag, it is required that the negative pressure suction component 10 cannot stop after being started. Because once it stops, the dust will lose the power to adhere to the dust removal bag 8 and will fall freely. Therefore, by providing an anti-backflow structure 81 inside the dust removal bag 8, as long as the anti-backflow structure 81 closes in advance before the negative pressure suction component 10 is closed, the dust can be prevented from flowing back out of the dust removal bag 8, thereby improving the convenience during the use of the equipment and reducing the energy consumption required for the negative pressure suction component 10 to be continuously turned on.

[0033] As Figures 4 to 5 shown, the anti-backflow structure 81 includes an anti-static cloth 811 and an elastic cord 812; the anti-static cloth 811 is funnel-shaped; the edge of the large mouth end of the anti-static cloth 811 is connected to the edge of the bag mouth of the dust removal bag 8; the edge of the small mouth end of the anti-static cloth 811 is connected to the annular elastic cord 812.

[0034] After the negative pressure suction component 10 is turned on, the dust in the falling short glass fiber material is sucked into the large-mouth end of the anti-static cloth 811, and under the action of the suction force, the anti-static cloth 811 expands, and then drives the elastic rope 812 at the small-mouth end of the anti-static cloth 811 to be stretched and its diameter becomes larger. The dust entering the large-mouth end of the anti-static cloth 811 passes through the annular elastic rope 812 and enters the dust removal bag 8; when the negative pressure suction component 10 is damaged or the negative pressure suction component 10 stops midway, the suction force provided by the negative pressure suction component 10 is lost, the anti-static cloth 811 loses the force to expand, and then the elastic rope 812 shrinks its diameter by itself, and then drives the small-mouth end of the anti-static cloth 811 to tighten, thus achieving the effect that the anti-backflow structure 81 automatically closes when the negative pressure suction component 10 stops or is closed. In this case, the anti-backflow structure 81 can be automatically closed and opened without complicated control. The elastic rope 812 can be made of rubber material, and the elastic force of the elastic rope 812 needs to be designed in matching with the suction power of the negative pressure suction component 10. The function of the anti-static cloth 811 to prevent static electricity from adsorbing dust can also further reduce the dust adhering to the anti-static cloth 811 and falling back into the packaging bag, thus better ensuring the dust removal effect.

[0035] The edge of the large-mouth end of the anti-static cloth 811 is connected to the edge of the bag mouth of the dust removal bag 8 through a telescopic cloth embedded with a tension sensor; the telescopic cloth is a ring structure, and the telescopic cloth has elasticity; the detection ends of the tension sensor are respectively connected to the edge of the large-mouth end of the anti-static cloth 811 and the edge of the bag mouth of the dust removal bag 8.

[0036] After the negative pressure suction component 10 is turned on, under the action of the suction force, the anti-static cloth 811 expands. At the same time, the anti-static cloth 811 exerts an upward pulling force on the tension sensor. Therefore, during the normal dust removal process, the pulling force value of the tension sensor is within a preset range. When the elastic rope 812 breaks, the pulling force value of the tension sensor will suddenly become very small. Then, after the tension sensor transmits the electrical signal to the controller, the controller controls the alarm to sound through the electrical signal and displays an explanation of the breakage of the elastic rope 812 on the terminal. When a certain amount of dust adheres to the anti-static cloth 811 and the elastic rope 812, the blocking effect of the anti-static cloth 811 on the suction increases. As a result, the pulling force generated by the anti-static cloth 811 under the action of the suction force increases, causing the pulling force value of the tension sensor to exceed the preset range. Then, after the tension sensor transmits the electrical signal to the controller, the controller controls the alarm to sound through the electrical signal and displays an explanation of the dust accumulation on the anti-static cloth 811 on the terminal. In this case, by setting a tension sensor between the edge of the large opening end of the anti-static cloth 811 and the edge of the bag mouth of the dust removal bag 8, the pulling force value exerted by the anti-static cloth 811 detected by the tension sensor can be used to detect whether the anti-backflow structure 81 is working properly, and can alarm and remind the fault point in a timely and accurate manner, facilitating the maintenance personnel to carry out maintenance quickly and improving the efficiency of equipment maintenance. At the same time, because the damage of the dust removal function can be detected in time, the stability of the dust removal effect is also improved.

[0037] The first telescopic component 4 includes a first electric push rod; the output end of the first electric push rod is connected to the upper end of the connecting sleeve 2; the cylinder body of the first electric push rod is fixedly connected to the discharge valve 1; As Figures 5 to 6 shown, the second telescopic component 6 includes a second electric push rod 61 and a sliding hinge seat 62; a sliding groove is provided on the mounting plate 9 corresponding to the position of the swing rod 5; the sliding hinge seat 62 is slidably connected in the sliding groove; one end of the sliding hinge seat 62 is hinged to the upper end of the swing rod 5 through a hinge portion; the other end of the sliding hinge seat 62 is connected to the output end of the second electric push rod 61; the cylinder body of the second electric push rod 61 is fixedly connected to the mounting plate 9.

[0038] Both the first electric push rod and the second electric push rod 61 are connected to the controller through electrical signals.

[0039] As Figure 1 shown, the packing device further includes a conveyor line 11 and an opening mechanism 12; the conveyor line 11 is arranged below the discharge valve 1; a limit frame 111 for placing packaging bags is provided at one end of the conveyor line 11; an anti-toppling frame 112 is provided at the other end of the conveyor line 11; the opening mechanisms 12 are symmetrically arranged on both sides of the conveyor line 11; The bag-opening mechanism 12 includes a transposition unit 121, a telescopic unit 122, and an adsorption unit 123; the transposition unit 121 is connected to the side of the conveyor line 11; the transposition unit 121 is used to drive the telescopic unit 122 to move and transpose; the telescopic unit 122 is used to drive the adsorption unit 123 to extend and retract; the adsorption unit 123 is used to adsorb the packaging bag.

[0040] The packaging bags are evenly spaced between the two limit frames 111 on the conveyor line 11, and then move to one end of the limit frame 111 along with the conveyor line 11. The sensor in the waiting bag-opening mechanism 12 at this place detects the approach of the packaging bag and transmits an electrical signal to the controller. The controller controls the telescopic unit 122 to drive the adsorption unit 123 to extend through the electrical signal. When the adsorption unit 123 contacts the packaging bag, the controller controls the adsorption mechanism to adsorb the packaging bag through the electrical signal. At the same time when the adsorption unit 123 contacts the packaging bag, the controller controls the transposition unit 121 to drive the telescopic unit 122 to move synchronously with the conveyor line 11 through the electrical signal. Then, when the packaging bag moves to directly below the discharge valve 1, the controller controls the conveyor line 11 to stop, and at the same time, the controller controls the two telescopic units 122 to contract synchronously, thereby realizing the opening of the bag mouth of the packaging bag. Subsequently, the controller controls the first telescopic member 4 and the second telescopic member 6 to drive the lower end of the swing rod 5 to close and then open, thereby realizing the opening and fixing of the bag mouth of the packaging bag. Subsequently, the controller controls the transposition unit 121 to move to the position where the waiting packaging bag is located. The controller then controls the telescopic unit 122 and the adsorption unit 123 to adsorb the waiting packaging bag. After waiting for the previous packaging bag to finish loading, the controller controls the conveyor line 11 to move the packaging bag filled with short glass fibers between the two anti-toppling frames 112. At the same time, the controller controls the transposition unit 121 to drive the telescopic unit 122 and the waiting packaging bag to move below the discharge valve 1. The controller then controls the telescopic unit 122 to open the bag mouth of the packaging bag and wait for the swing rod 5 to open and fix it. By repeating the above operations, automatic bagging and automatic loading are realized, thereby avoiding the harm of short glass fibers to the human body, improving the bagging efficiency, and further improving the packaging efficiency of short glass fiber materials.

[0041] As Figures 1 to 9 shown, a glass fiber packaging method includes the following steps: S1: Place the packaging bags evenly spaced between the two limit racks 111 on the conveyor line 11, and then follow the conveyor line 11 to move to one end of the limit rack 111. The sensor in the opening mechanism 12 waiting there detects that the packaging bag is approaching, and transmits an electrical signal to the controller. The controller controls the telescopic unit 122 to drive the adsorption unit 123 to extend through the electrical signal. When the adsorption unit 123 contacts the packaging bag, the controller controls the adsorption mechanism to adsorb the packaging bag through the electrical signal. When the adsorption unit 123 contacts the packaging bag, the controller controls the transposition unit 121 through the electrical signal to drive the telescopic unit 122 to keep moving synchronously with the conveyor line 11. Then, when the packaging bag moves to the bottom of the discharge valve 1, the controller controls the conveyor line 11 to stop, and at the same time, the controller controls the telescopic units 122 on both sides to shrink synchronously, so as to open the bag mouth of the packaging bag. S2: The controller controls the first telescopic component 4 through an electrical signal to drive the connecting sleeve 2 to move upward, thereby driving the limit pin on the support plate 3 to slide along the limit groove on the swing rod 5. At the same time, the controller controls the second telescopic component 6 through an electrical signal to drive the swing rod 5 to move toward the periphery of the mounting plate 9. Through the above dual control in the vertical and horizontal directions, the lower ends of the swing rod 5 are brought together and close to each other, and the elastic cloth 7 sleeved on the outer side of the swing rod 5 is also deformed into an inverted cone shape, thereby facilitating the lower end of the swing rod 5 to be inserted into the opened packaging bag mouth; S3: After the lower end of the swing rod 5 is inserted into the bag opening of the packaging bag, the controller controls the first telescopic component 4 to drive the connecting sleeve 2 to move downward, thereby driving the limit pin to slide downward along the limit groove. At the same time, the controller controls the second telescopic component 6 to drive the upper end of the swing rod 5 to approach the edge of the mounting plate 9, thereby enabling the lower end of the swing rod 5 to quickly support the bag opening of the packaging bag under the dual control of the vertical direction and the horizontal direction, and to communicate with the inside of the packaging bag by using the elastic cloth 7 sleeved on the outer side of the swing rod 5; S4: Then the controller controls the transposition unit 121 to move to the position where the waiting packaging bag is located, and then controls the telescopic unit 122 and the adsorption unit 123 to adsorb the waiting packaging bag, waiting for the previous packaging bag to be loaded; S5: After completing the connection with the packaging bag, the controller controls the negative pressure suction component 10 to work through an electrical signal, and then the negative pressure suction component 10 sucks the space surrounded by the support plate 3, the mounting plate 9 and the elastic cloth 7. After the negative pressure suction component 10 is turned on, the controller controls the discharge valve 1 to open through an electrical signal, and then the short glass fiber material transported in the discharge pipe is transported from the discharge valve 1 to the packaging bag below. During the process, the opened negative pressure suction component 10 sucks the short glass fiber material falling from the discharge valve 1; S6: After the loading is completed, the controller controls the first telescopic member 4 to drive the connecting sleeve 2 to move upward through an electrical signal, thereby driving the limit pin on the support plate 3 to slide along the upper limit groove on the swing rod 5. At the same time, the controller controls the second telescopic member 6 to drive the swing rod 5 to move towards the periphery of the mounting plate 9 through an electrical signal. Through the dual control in the vertical and horizontal directions above, the lower ends of the swing rod 5 are mutually closed and approached; S7: After the lower ends of the swing rod 5 are mutually closed and approached, the controller controls the conveyor line 11 to move the packaging bag filled with short glass fibers between the two anti-toppling frames 112. At the same time, the controller controls the transposition unit 121 to drive the telescopic unit 122 and the waiting packaging bag to move below the discharge valve 1, and then the controller controls the telescopic unit 122 to open the bag mouth of the packaging bag; S8: Repeat the steps of S2 - S7.

[0042] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. All of these fall within the protection scope of the present invention.

Claims

1. A packing device for glass fiber production, characterized in that: It includes a discharge valve (1), a connecting sleeve (2), a support plate (3), a first telescopic member (4), a swing rod (5), a second telescopic member (6), an elastic cloth (7), a dust removal bag (8), a mounting plate (9) and a negative pressure suction member (10); the discharge valve (1) is installed below the discharge port; the connecting sleeve (2) is sleeved outside the discharge valve (1); the first telescopic member (4) is used to drive the connecting sleeve (2) to move vertically; the support plate (3) is fixedly connected below the connecting sleeve (2); The dust removal bags (8) are evenly spaced and installed on the support plate (3); the inlet edge of the dust removal bag (8) is connected to the edge of the hole on the support plate (3); the mounting plate (9) is arranged above the support plate (3); the mounting plate (9) is fixedly connected to the discharge pipe; the swing rods (5) are evenly spaced at the edge of the mounting plate (9); the upper end of the swing rod (5) is hinged to the output end of the second telescopic member (6); the second telescopic member (6) is connected to the mounting plate (9); limiting grooves are symmetrically arranged on both side surfaces of the swing rod (5); The support plate (3) is polygonal, and limiting pins are arranged at the corners of the support plate (3); the protruding ends of the limiting pins slide in the limiting grooves; the elastic cloth (7) is sleeved outside the swing rod (5); the elastic cloth (7) covers the area between the support plate (3) and the mounting plate (9); suction holes are arranged on the mounting plate (9), and the outside of the suction holes is connected to the negative pressure suction member (10); the negative pressure suction member (10) is used to suck the space surrounded by the support plate (3), the mounting plate (9) and the elastic cloth (7).

2. The packing device for glass fiber production according to claim 1, characterized in that: Slits (71) are evenly spaced vertically along the outer edge of the lower edge of the elastic cloth (7).

3. A packing device for glass fiber production according to claim 1, characterized in that: A support rod (51) is slidably connected inside the swing rod (5); teeth (511) are arranged on the support rod (51); the teeth (511) on the support rod (51) are meshed and driven with the gear on the output shaft of the first motor (53) through a gear set (52).

4. A packing device for glass fiber production according to claim 3, characterized in that: The lower end of the support rod (51) is connected to an elastic support strip (54); the outer diameter of the elastic support strip (54) is smaller than the outer diameter of the support rod (51).

5. A packing device for glass fiber production according to claim 1, characterized in that: An anti-backflow structure (81) is arranged inside the dust removal bag (8).

6. The packing device for glass fiber production according to claim 5, wherein: The anti-backflow structure (81) includes an anti-static cloth (811) and an elastic rope (812); the anti-static cloth (811) is funnel-shaped; the edge of the large mouth end of the anti-static cloth (811) is connected to the edge of the bag mouth of the dust removal bag (8); the edge of the small mouth end of the anti-static cloth (811) is connected to the annular elastic rope (812).

7. A packing device for glass fiber production according to claim 6, characterized in that: The edge of the large mouth end of the anti-static cloth (811) is connected to the edge of the bag mouth of the dust removal bag (8) through a telescopic cloth embedded with a tensile sensor; the telescopic cloth is a ring structure and has elasticity; the detection ends of the tensile sensor are respectively connected to the edge of the large mouth end of the anti-static cloth (811) and the edge of the bag mouth of the dust removal bag (8).

8. A packing device for glass fiber production according to claim 1, characterized in that: The first telescopic member (4) includes a first electric push rod; the output end of the first electric push rod is connected to the upper end of the connecting sleeve (2); the cylinder body of the first electric push rod is fixedly connected to the discharge valve (1); The second telescopic member (6) includes a second electric push rod (61) and a sliding hinge seat (62); a sliding groove is provided on the mounting plate (9) corresponding to the position of the swing rod (5); the sliding hinge seat (62) is slidably connected in the sliding groove; one end of the sliding hinge seat (62) is hinged to the upper end of the swing rod (5) through a hinge portion; the other end of the sliding hinge seat (62) is connected to the output end of the second electric push rod (61); the cylinder body of the second electric push rod (61) is fixedly connected to the mounting plate (9).

9. A packing device for glass fiber production according to claim 1, characterized in that: It further includes a conveyor line (11) and a bag opening mechanism (12); the conveyor line (11) is arranged below the discharge valve (1); a limit frame (111) for placing packaging bags is arranged at one end of the conveyor line (11); an anti - toppling frame (112) is arranged at the other end of the conveyor line (11); the bag opening mechanisms (12) are symmetrically arranged on both sides of the conveyor line (11); The bag opening mechanism (12) includes a transposition unit (121), a telescopic unit (122) and an adsorption unit (123); the transposition unit (121) is connected to the side of the conveyor line (11); the transposition unit (121) is used to drive the telescopic unit (122) to move and transpose; the telescopic unit (122) is used to drive the adsorption unit (123) to extend and retract; the adsorption unit (123) is used to adsorb the packaging bag.

10. A glass fiber packaging method applicable to any one of claims 1-9, characterized in that: It includes the following steps: S1: Place the packaging bags evenly and at intervals between the two limit frames (111) on the conveyor line (11), and then move along with the conveyor line (11) to one end of the limit frame (111). The sensor in the bag opening mechanism (12) waiting there detects the approach of the packaging bag, transmits an electrical signal to the controller, and the controller controls the telescopic unit (122) to drive the adsorption unit (123) to extend through the electrical signal. When the adsorption unit (123) contacts the packaging bag, the controller controls the adsorption mechanism to adsorb the packaging bag through the electrical signal. At the same time when the adsorption unit (123) contacts the packaging bag, the controller controls the transposition unit (121) to drive the telescopic unit (122) to move synchronously with the conveyor line (11) through the electrical signal. Then when the packaging bag moves to directly below the discharge valve (1), the controller controls the conveyor line (11) to stop, and at the same time controls the telescopic units (122) on both sides to contract synchronously, thereby realizing the opening of the bag mouth of the packaging bag; S2: The controller controls the first telescopic member (4) through an electrical signal to drive the connecting sleeve (2) to move upward, thereby driving the limit pin on the support plate (3) to slide along the limit groove on the swing rod (5). At the same time, the controller controls the second telescopic member (6) through an electrical signal to drive the swing rod (5) to move towards the periphery of the mounting plate (9). Through the dual control in the vertical and horizontal directions above, the lower ends of the swing rods (5) are brought closer together, and the elastic cloth (7) sleeved outside the swing rod (5) is also deformed into an inverted cone shape, thereby facilitating the insertion of the lower ends of the swing rods (5) into the opened bag mouth of the packaging bag; S3: After the lower ends of the swing rods (5) are inserted into the bag mouth of the packaging bag, the controller controls the first telescopic member (4) to drive the connecting sleeve (2) to move downward, thereby driving the limit pin to slide downward along the limit groove. At the same time, the controller controls the second telescopic member (6) to drive the upper end of the swing rod (5) to approach the edge of the mounting plate (9). Thus, under the dual control in the vertical and horizontal directions, the lower ends of the swing rods (5) quickly hold the bag mouth of the packaging bag and use the elastic cloth (7) sleeved outside the swing rod (5) to achieve communication with the inside of the packaging bag; S4: Subsequently, the controller controls the transposition unit (121) to move to the position where the waiting packaging bag is located. Then the controller controls the telescopic unit (122) and the adsorption unit (123) to adsorb the waiting packaging bag and wait for the previous packaging bag to finish loading; S5: After completing the connection with the packaging bag, the controller controls the negative pressure suction component (10) to work through an electrical signal. Then the negative pressure suction component (10) sucks the space surrounded by the support plate (3), the mounting plate (9), and the elastic cloth (7). After the negative pressure suction component (10) is turned on, the controller controls the discharge valve (1) to open through an electrical signal. Then the short glass fiber material conveyed in the discharge pipe is conveyed from the discharge valve (1) into the lower packaging bag. During the process, the turned-on negative pressure suction component (10) sucks the short glass fiber material falling from the discharge valve (1); S6: After the loading is completed, the controller controls the first telescopic member (4) to drive the connecting sleeve (2) to move upward, thereby driving the limit pin on the support plate (3) to slide along the limit groove on the swing rod (5). At the same time, the controller controls the second telescopic member (6) to drive the swing rod (5) to move towards the periphery of the mounting plate (9). Through the dual control in the vertical and horizontal directions above, the lower ends of the swing rods (5) are brought closer together; S7: After the lower ends of the swing rods (5) are brought closer together, the controller controls the conveyor line (11) to move the packaging bag filled with short glass fibers between the two anti - tipping frames (112). At the same time, the controller controls the transposition unit (121) to drive the telescopic unit (122) and the waiting packaging bag to move below the discharge valve (1). Then the controller controls the telescopic unit (122) to open the bag mouth of the packaging bag; S8: Repeat the steps of S2 - S7.

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