Packing device for aramid pulp

Abstract

The embodiment of the utility model provides a packaging device for aramid pulp, and relates to the field of material packaging. The packing device for the aramid pulp comprises a raw material storage tank, a conveying and weighing mechanism, a briquetting mechanism, a bag making mechanism, a rechecking mechanism and a stacking mechanism which are arranged in sequence. The raw material storage tank is used for outputting materials, the conveying and weighing mechanism is used for conveying and weighing the materials, the briquetting mechanism is used for extruding the materials to form material blocks, the bag making mechanism is used for forming bag films and bagging the material blocks to form material bags, the rechecking mechanism is used for rechecking the material bags, and the stacking mechanism is used for stacking the material bags. According to the packing device for the aramid pulp, the automation degree of packing operation can be improved through cooperative operation of all the mechanisms, bagged material blocks can be rechecked, then weight difference is avoided, and negative effects on the overall quality are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to material packaging field, specifically, relate to a kind of for aramid pulp packing device. BACKGROUND

[0002] The existing pulp is mostly manual operation in packing process, and the degree of automation is low, and the material block after bagging is not rechecked, so that the weight of different bags has large difference, and then the overall quality is negatively affected. INVENTION CONTENTS

[0003] The utility model provides a kind of for aramid pulp packing device, it can improve the degree of automation of packing operation, and the material block after bagging can be rechecked, and then avoid the weight difference, prevent the negative influence to overall quality.

[0004] The embodiment of the utility model can be realized as follows:

[0005] The embodiment of the utility model provides a kind of for aramid pulp packing device, it includes:

[0006] Raw material storage tank, transmission and weighing mechanism, briquetting mechanism, bag making mechanism, rechecking mechanism and stacking mechanism are sequentially arranged;

[0007] Among them, the raw material storage tank is used to output material, the transmission and weighing mechanism is used to transmit and weigh the material, the briquetting mechanism is used to extrude the material to form the material block, the bag making mechanism is used to form the bag film and bag the material block to form the material bag, the rechecking mechanism is used to recheck the material bag, and the stacking mechanism is used to stack the material bag.

[0008] Optionally, the raw material storage tank includes tank body, stirring paddle and discharge valve, the stirring paddle is arranged in the tank body and is used to stir material, and the discharge valve is connected to the bottom of the tank body and is used to rotate discharge.

[0009] Optionally, the discharge valve is rotatably connected with the tank body.

[0010] Optionally, the stirring paddle is of variable-diameter structure.

[0011] Optionally, the packing device for aramid pulp further includes an electrostatic removal mechanism, and the electrostatic removal mechanism is arranged between the raw material storage tank and the transmission and weighing mechanism.

[0012] Optionally, the electrostatic removal mechanism is an ion fan or an ion bar device.

[0013] Optionally, the bag film is of three-layer structure, and the melting point of the middle layer is higher than that of the upper and lower layers.

[0014] And / or, the bag film is at least two layers of structure, wherein at least one layer is PE film or PVC film or HDPE film.

[0015] Optionally, the bag film comprises an antistatic agent, and the content of the antistatic agent is 0.1% to 0.3%;

[0016] And / or, the bottom of the material bag is formed with a flange included angle;

[0017] And / or, the edge of the compression cavity of the briquetting mechanism is curved.

[0018] Optionally, the reinspection mechanism comprises a reweighing machine, and the reweighing machine is used for reweighing the material bag;

[0019] And / or, the reinspection mechanism comprises a metal detector, and the metal detector is used for metal detection of the material bag.

[0020] Optionally, the packaging device for aramid pulp further comprises a labeling machine, and the labeling machine is used for labeling the material bag after reinspection.

[0021] The packaging device for aramid pulp has the following beneficial effects, for example:

[0022] The packaging device for aramid pulp comprises: raw material storage tanks, a transmission and weighing mechanism, a briquetting mechanism, a bag making mechanism, a reinspection mechanism and a stacking mechanism arranged in sequence; wherein the raw material storage tank is used for outputting materials, the transmission and weighing mechanism is used for transmission and weighing operation of the materials, the briquetting mechanism is used for extruding the materials to form briquettes, the bag making mechanism is used for forming a bag film and packaging the briquettes to form a material bag, the reinspection mechanism is used for reinspection of the material bag, and the stacking mechanism is used for stacking the material bag. The packaging device for aramid pulp can improve the automation degree of packaging operation through the coordinated operation of each mechanism, and can reinspect the packaged briquettes, thereby avoiding the existence of weight difference and preventing negative impact on the overall quality. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The structure diagram of the packaging device for aramid pulp provided in the embodiments of the present application is shown;

[0025] Figure 2The structure schematic view of the raw material storage tank provided in the embodiment of the utility model;

[0026] Figure 3 The structure schematic view of the sealing knife provided in the embodiment of the utility model;

[0027] Figure 4 The structure schematic view of the long and short edge sealing structure provided in the embodiment of the utility model.

[0028] Icon: 100 - packing device for aramid pulp;110 - raw material storage tank;111 - tank body;112 - stirring paddle;1121 - main shaft;1122 - stirring blade;1123 - stirring sub-blade;113 - discharge valve;120 - transmission weighing mechanism;130 - briquetting mechanism;140 - bag making mechanism;145 - sealing knife;1451 - seat body;1452 - blade edge;1453 - recessed groove;149 - long and short edge sealing structure;150 - rechecking mechanism;152 - reweighing machine;154 - metal detector;160 - stacking mechanism;170 - static electricity removing mechanism;180 - labeling machine. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0031] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] The term "includes", "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of additional identical elements in the process, method, article or equipment that includes the element.

[0035] Unless otherwise expressly provided and limited, the terms "provide", "connect" and the like should be broadly understood, for example, "connect" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0037] As the background art, the existing aramid pulp is mostly manual operation in the packaging process, and the degree of automation is low, and the material block after bagging is not rechecked, which leads to great difference in the weight of different bags, and further causes negative impact on the overall quality.

[0038] In addition, the existing packaging device and the packaging method also have certain limitations in other aspects. For example, the existing pulp packaging has poor sealing performance, air and moisture easily enter the pulp package, affecting the use stability of the pulp, and even causing performance degradation of the pulp. It is difficult to package wet pulp with high water content, and the existing packaging and packaging method have poor water and air blocking ability. During the packaging and forming process, uneven processing is caused by adsorption of the material and the cavity, and the packaging weight is difficult to control. During the transportation and storage of pulp, the pulp product is fluffy and has low bulk density, resulting in high transportation and storage costs. The existing pulp compression method only compacts the pulp fibers, and the volume of the packaged pulp is still large, which is not easy to transport and store. At the same time, the compacted density is uneven, which may cause hard block and product quality problems. In addition, during the packaging process, wet pulp still has the problem of hard block caused by stress due to the packaging method, and the problem of material adhesion to the inner wall of the material bag caused by electrostatic adsorption.

[0039] Please refer to Figure 1 The packaging device for aramid pulp provided in the embodiment of the present application can solve the above problems, which will be described in detail.

[0040] The packaging device for aramid pulp 100 comprises a raw material storage tank 110, a transmission and weighing mechanism 120, a briquetting mechanism 130, a bag making mechanism 140, a re-inspection mechanism 150 and a stacking mechanism 160 arranged in sequence.

[0041] The raw material storage tank 110 is used for outputting material, the transmission and weighing mechanism 120 is used for transmitting and weighing the material, the briquetting mechanism 130 is used for extruding the material to form a briquette, the bag making mechanism 140 is used for forming a bag film and packaging the briquette to form a bag, the re-inspection mechanism 150 is used for re-inspecting the bag, and the stacking mechanism 160 is used for stacking the bag.

[0042] During the working process, the packaging device for aramid pulp 100 can improve the automation degree of the packaging operation through the coordinated operation of each mechanism, and can re-inspect the packaged briquette, thereby avoiding the weight difference and preventing the negative impact on the overall quality.

[0043] Please refer to Figure 2 The raw material storage tank 110 comprises a tank body 111, a stirring paddle 112 and a discharge valve 113. The stirring paddle 112 is arranged in the tank body 111 and is used for stirring the material. The discharge valve 113 is rotatably connected to the bottom of the tank body 111 and is used for rotating discharge.

[0044] In the working process, the material will first enter the tank body 111, and the material will be stirred by the stirring paddle 112. After stirring to the appropriate degree, the discharge valve 113 is opened to facilitate material output. At the same time, in order to avoid the material from sticking and causing blockage during discharge, the discharge valve 113 can be rotated relative to the tank body 111 during discharge, thereby realizing the rotation of the material. After the discharge is completed, the discharge valve 113 is closed to avoid the continuous discharge having a negative impact on the uniformity of the weight of the subsequent material bag.

[0045] Further, in order to improve the stirring and mixing effect of the material, the stirring paddle 112 can be a variable diameter structure, which can realize the mixing of the material in the front-rear direction, left-right direction and up-down direction during stirring, further reducing the volume fluctuation caused by the loose material, and making the weight distribution of the material more uniform.

[0046] Please refer to Figure 2 In the embodiment, the stirring paddle 112 can have three layers of stirring blades 1122, which are arranged in sequence along the axial direction of the main shaft 1121 of the stirring paddle 112. Each layer of stirring blades 1122 is formed with stirring sub-blades 1123 extending in the vertical direction. The main shaft 1121 can rotate during stirring, thereby simultaneously driving the stirring blades 1122 and the stirring sub-blades 1123 to rotate.

[0047] Specifically, the number of stirring sub-blades 1123 on the first layer of stirring blades 1122 is two, which are arranged about the first stirring blade 1122 in the axial direction and symmetrically about the main shaft 1121 of the stirring paddle 112 in the radial direction. The number of stirring sub-blades 1123 on the second layer of stirring blades 1122 is four, of which two are located at the end of the stirring blade 1122 away from the main shaft 1121, and the other two are arranged similarly to the two stirring sub-blades 1123 of the first layer, but in the radial direction, the stirring sub-blade 1123 on one side of the first layer is located between the two stirring sub-blades 1123 on the same side of the second layer. The number of stirring sub-blades 1123 on the third layer is two, which are respectively arranged at the end of the stirring blade 1122 away from the main shaft 1121. The stirring sub-blades 1123 are staggered with each other, which can enhance the flow effect of the material during stirring.

[0048] Furthermore, the main shaft 1121 can move axially under the action of an external force, thereby realizing stirring of the material at different heights in the tank body 111. Specifically, the power source of the main shaft 1121 can be arranged at the top of the tank body 111, which can be a rotary electric cylinder, a rotary air cylinder or a rotary hydraulic cylinder, and the specific power form is not limited.

[0049] Of course, in other embodiments of the present application, the stirring paddle 112 can also have double-layer, four-layer, five-layer, etc. stirring blades 1122, and the number of stirring sub-blades 1123 on each layer of stirring blades 1122 can be one, two, four, etc. The specific setting structure of the stirring paddle 112 is not limited.

[0050] It should be noted that in the discharging structure, the diameter of the variable diameter screw rod gradually increases from the root to the top, thereby helping to uniformly produce the material. Compared with the structure in which the diameter gradually decreases from the root to the top, the material is not excessively extruded.

[0051] After the material is discharged, the transmission and weighing mechanism 120 is used to transmit and weigh the material. Specifically, the transmission and weighing mechanism 120 can be a belt scale, which can not only weigh the material but also transmit the material towards the briquetting mechanism 130 through the belt, and the briquetting mechanism 130 is used to briquet the transmitted material.

[0052] It should be noted that in order to ensure that the material transmitted by the transmission and weighing mechanism 120 can smoothly enter the briquetting mechanism 130 for briquetting operation, a discharge hopper can be arranged between the transmission and weighing mechanism 120 and the briquetting mechanism 130. The discharge hopper can be located on the lower side of the end of the transmission and weighing mechanism 120 away from the tank body 111 and on the upper side of the briquetting mechanism 130, so that the material can first enter the discharge hopper and then enter the briquetting mechanism 130. Moreover, the discharge hopper can have a structure of large at the top and small at the bottom, thereby facilitating the material to gather when being pressed into the briquetting mechanism 130, so as to facilitate subsequent briquetting operation.

[0053] Please refer to Figure 1 As for the operation process of the briquetting mechanism 130, it can specifically pre-compress the material by pushing the pre-compression rotating beam of the pre-compression oil cylinder, and compress it downward to a first preset width (about 350mm) and a first preset height (about 280mm); then the pre-compressed material is further compressed to a first preset length (about 550mm) by the main compression oil cylinder driving the main compression beam; then the compressed material is compressed to a first preset width (about 350mm) by the vertical compression oil cylinder driving the vertical compression beam; then the gate oil cylinder is pulled in to form a briquetting sizing cavity, and the length, width and height are further compressed; then the gate oil cylinder is pushed out to form a briquetting outlet passage; finally, the push block oil cylinder drives the push block beam to push the briquetting through the gate to the briquetting outlet to push the material block to the bag making mechanism 140.

[0054] It is worth noting that the size of the briquetting mechanism 130 is limited during the briquetting operation, so that the weight of the briquetting mechanism can also be controlled at 5.0kg-5.3kg / bag, which can be 5.0kg, 5.1kg, 5.2kg and 5.3kg, etc.

[0055] In addition, during the briquetting operation, by adjusting the straight edge of the compression cavity to a curved surface, the problem of unstable compaction density, uneven compaction and hard block is solved. And in the compression process, the friction between the material and the inner cavity of the bag is reduced, the stress concentration is reduced, and the hard block forming condition is eliminated. Specifically, the curved surface is preferably a 60° arc.

[0056] Please refer to Figure 1 , Figure 3 and Figure 4 , as for the operation process of the bag making mechanism 140, it can be driven by the film releasing motor to transport the bag film through the forming assembly, and then the bag film is turned into a bag cylinder shape, and then the straight seam of the bag film is adhered by the cylinder forming assembly, and the bag bottom and the bag opening position of the bag film are adhered by the sealing assembly, and the full bag is separated to carry out the bagging operation of the briquetting mechanism.

[0057] Specifically, the bag making mechanism 140 can include a sealing knife 145, the sealing knife 145 including a seat body 1451 and a blade 1452, a recessed groove 1453 is formed in the middle position of the seat body 1451, the blade 1452 is located in the middle position of the seat body 1451 and the recessed groove 1453, the blade 1452 is flush with the top surface of the seat body 1451 at the blade tip, and the recessed groove 1453 is V-shaped structure, and the recessed side wall gradually approaches the bottom surface of the seat body 1451 along the direction close to the blade 1452.

[0058] It is worth noting that during the bag making operation, the bag can be designed with a flange angle, which is formed at the bottom of the bag, and the angle is about 60°, so as to improve the sealing performance of the package, avoid the negative impact of air and moisture mixed into the material on the stability of the material, and prevent the mixed material from reducing the performance of the material; At the same time, the long and short edge sealing structure 149 is formed by the flange, which can reduce the contact line length during heat sealing and reduce the heat sealing failure rate; and the triangular structure is formed by the angle setting, which has higher strength than the conventional rectangular structure.

[0059] In addition, during the hot sticking process, the hot sealing temperature can be 100℃-110℃, which can be 100℃, 105℃ and 110℃, and the hot sealing time can be 8s-12s, which can be 8s, 10s and 12s.

[0060] Please refer to Figure 1In order to carry out the static electricity elimination treatment on the material, reduce the probability that the material is unevenly discharged or unevenly packed due to electrostatic adsorption, the packing device 100 for aramid pulp can further comprise an electrostatic elimination mechanism 170 arranged between the raw material storage tank 110 and the transmission and weighing mechanism 120.

[0061] In the embodiment, the electrostatic elimination mechanism 170 can be an ion fan or an ion rod device, which is used to eliminate the static electricity of the material after being discharged. Similarly, in order to avoid increasing static electricity in the material flow process, the electrostatic elimination effect can be achieved by laying an antistatic floor, increasing humidity, and grounding the equipment.

[0062] Of course, in other embodiments of the present application, the electrostatic elimination mechanism 170 can also be other devices with electrostatic adsorption or removal functions, and the specific device type is not limited.

[0063] Please refer to Figure 1 As for the selection of the bag film, an antistatic PE film (based on a polyethylene plastic film) can be preferred, which can reduce the electrostatic attraction between the material and the PE bag, facilitate the material feeding after the bag is removed, and reduce the material loss caused by electrostatic adsorption; at the same time, it also has the advantages of reducing dust and improving the working environment of material feeding.

[0064] Of course, PVC film (main component: polyvinyl chloride, yellowish translucent with luster) and EVA film (an environmentally friendly film made of ethylene and vinyl acetate copolymer) with appropriate strength and water and air resistance can also be selected as the material of the bag film. By limiting the material or performance of the bag film, the packing bag has excellent water and air resistance, which can be used for packing wet pulp, even if the moisture content of the wet pulp is 4-5 times that of the dry pulp, it can also fully play the insulation effect.

[0065] In the embodiment, the bag film is preferably a three-layer structure, and the melting point of the middle layer is higher than that of the upper and lower layers, which can avoid the hole penetration phenomenon during heat sealing, thereby improving the heat sealing effect. Moreover, the bag film can comprise an antistatic agent, and the content of the antistatic agent is 0.1% to 0.3%, which can be 0.1%, 0.2%, or 0.3%. As for the multi-layer material of the bag film, it can be EVA-PE-EVA film or EVA-PVC-EVA film or LDPE-HDPE-LDPE sandwich structure.

[0066] It should be noted that, as for the three-layer structure of the bag film, the heat sealing temperature of the surface layer is relatively low, which is 100°C to 110°C, and the melting point temperature of the middle layer is relatively high, which is 126°C to 136°C, thereby avoiding the hole penetration of the middle layer during heat sealing.

[0067] Please refer toFigure 1 The re-inspection mechanism 150 can include at least one of a re-weighing machine 152 for re-weighing the material bag and a metal detector 154 for metal detection of the material bag (which can also be the re-weighed material bag).

[0068] Specifically, the re-weighing machine 152 mainly performs re-weighing operation on the bagged material bag to ensure that the weights of different material bags are relatively uniform; and the metal detector 154 is used for metal detection of the material bag to avoid that residual metal easily causes static electricity generation and has negative impact on subsequent operation.

[0069] Please refer to Figure 1 The packaging device 100 for aramid pulp further includes a labeling machine 180 for labeling the re-inspected material bag. After the material is subjected to re-weighing and metal detection, labeling operation can be performed. After labeling operation, palletizing and film wrapping are performed. Specifically, the palletizing is performed by the mechanical arm. The size of the pallet is about 1100mm*1100mm*1260mm (length*width*height). After the palletizing is completed, the paperboard is covered, and the PE film is used for film wrapping.

[0070] It is worth noting that in the process of palletizing operation by the mechanical arm, the control program can be pre-stored in the mechanical arm. The worker selects the program through the touch screen, and then controls the mechanical arm to grab the labeled material bag for stacking operation. Of course, the worker can revise each parameter in the program according to actual needs, so as to adjust the action speed, grabbing force, stacking sequence, and number of layers of the mechanical arm, so as to intelligently perform the palletizing operation.

[0071] In addition, in the present embodiment, the length of a single material bag is usually 550mm, the height is 280mm, the width is 350mm, and the weight is 5kg, or the length of a single material bag is usually 1100mm, the height is 280mm, the width is 350mm, and the weight is 10kg; and the length of the stacked whole pallet is usually 1100mm, the width is 1100mm, the height is 1260mm, and the weight is 120kg. Therefore, the material bags on one pallet can be arranged in a two-row, three-column, and four-layer structure. Of course, the size of the selected pallet can be adjusted according to actual shipping conditions, so as to adaptively adjust the size of the stacked whole pallet and the arrangement mode of the material bags on one pallet.

[0072] In addition, the packaging device 100 for aramid pulp can also realize a packaging method for aramid pulp, which includes:

[0073] Step S100: stirring the material and discharging; it is worth noting that the material in the tank 111 is stirred by the stirring paddle 112 of the variable diameter structure, and after stirring to the appropriate degree, the discharge valve 113 is opened and the discharge valve 113 is rotated relative to the tank 111 to realize rotary discharge.

[0074] It is worth noting that between step S100 and step S200, the packing method for aramid pulp also includes step S150: destaticizing the material to avoid the existence of static electricity to cause the material to adhere in the subsequent operation process, and prevent the phenomenon of uneven weight of the material bag. In this embodiment, this step can be realized by ion fan and ion rod equipment; of course, in other embodiments of the present application, other destaticizing equipment can also be used to realize step S150.

[0075] Step S200: transmitting and weighing the material; the transmission and weighing process is realized by the transmission and weighing mechanism 120.

[0076] Step S300: extruding the material to form a material block; the overall extrusion process is realized by the briquetting mechanism 130, which extrudes the length, width and height of the material to the appropriate size through its internal structure.

[0077] Step S400: forming the bag film and packaging the material block to form a material bag; the bag film can be sequentially turned, ironed, sealed and other processes by the bag making mechanism 140, and the formed bag film is used for packaging.

[0078] Step S500: re-inspecting the material bag;

[0079] Specifically, step S500 includes:

[0080] Step S510: re-weighing the material bag; it is realized by a re-weighing machine, which is used to ensure the uniformity of the weight of different material bags, and avoid the weight difference of the same batch of material bags being too large, which may cause performance deviation.

[0081] Step S520: metal detection of the material bag; it is realized by a metal detector, which is used to detect residual metal in the material bag, avoid the increase of the adsorption force of the material caused by the residual metal, and prevent negative impact on performance.

[0082] Step S600: stacking the re-inspected material bag; it is worth noting that after stacking the material bag, PE film needs to be used for film wrapping to further improve the protection performance of the overall stacking structure.

[0083] It is worth noting that between step S520 and step S600, the packing method for aramid pulp also includes step S580: labeling the material bag, which can be realized by a labeling machine.

[0084] In addition, in the process of using the above method to process the material, when processing the material with a weight of 5 kg and a water content of 6%, a 2mm PE black flat film is selected, the heat sealing temperature is 110°C, the heat sealing time is 10s, the packaging size is 550mm*350mm*280mm, the folding angle of the left and right sides of the bag is 90°. The bags on a tray are arranged in two rows, three columns and four layers, the tray size is 1100mm*1100mm*1260mm, and each tray has 24 bags. Under the condition that each tray has 24 bags, the average weight of a single bag is 5.05kg, the average size of the package is 551mm*351mm*280mm, the compacted density is 0.0936g / cm 3 , and the fluctuation is less than 0.0001g / cm 3 .

[0085] When processing the material with a weight of 10 kg and a water content of 30%, a 2mm PE black flat film is selected, the heat sealing temperature is 110°C, the heat sealing time is 10s, the packaging size is 1100mm*350mm*280mm, the folding angle of the left and right sides of the bag is 90°, the bags on a tray are arranged in one row, three columns and four layers, the tray size is 1100mm*1100mm*1260mm, and each tray has 12 bags. Under the condition that each tray has 12 bags, the average weight of a single bag is 10.03kg, the average size of the package is 1101mm*350mm*282mm, the compacted density is 0.0923g / cm 3 , and the fluctuation is less than 0.0001g / cm 3 .

[0086] When processing the material with a weight of 10 kg and a water content of 6%, a 3mm PVC black flat film is selected, the heat sealing temperature is 110°C, the heat sealing time is 10s, the packaging size is 1100mm*350mm*280mm, the folding angle of the left and right sides of the bag is 60°, the bags on a tray are arranged in one row, three columns and four layers, the tray size is 1100mm*1100mm*1260mm, and each tray has 12 bags. Under the condition that each tray has 12 bags, the average weight of a single bag is 10.05kg, the average size of the package is 1103mm*351mm*280mm, the compacted density is 0.0927g / cm 3 , and the fluctuation is less than 0.0001g / cm 3 .

[0087] In the treatment of the material with a weight of 10kg and a water content of 6%, the EVA-PE-EVA black flat film with a thickness of 3mm is selected, the heat sealing temperature is 105 DEG C, the heat sealing time is 8s, the packaging size is 1100mm*350mm*280mm, the folding angle of the left and right sides of the bag is 60 DEG, the bags on a tray are arranged in a row of three columns and four layers, the size of the tray is 1100mm*1100mm*1260mm, each tray has 12 bags, after testing, the average weight of a single bag is 10.05kg, the average size of the package is 1101mm*351mm*279mm, the compacted density is 0.0932g / cm 3 , and the fluctuation is less than 0.0001g / cm 3 .

[0088] In summary, the packaging device 100 for aramid pulp provided by the embodiment of the utility model has at least the following advantages:

[0089] (1) The packaging device 100 for aramid pulp can use the reweighing machine 152 and the metal detector 154 in the rechecking mechanism 150 to recheck the bags, so as to ensure the uniformity of the weight of each bag and avoid the existence of metal residues in the bags, which can affect the performance of the material due to adsorption, and reduce the defective rate of the bags.

[0090] (2) The packaging device 100 for aramid pulp can realize the flow packaging of the material through the coordinated operation of each mechanism, improve the automation degree of the packaging operation, reduce the labor intensity of the workers, improve the packaging efficiency and the packaging quality, and reduce the packaging defects caused by manual packaging.

[0091] (3) The packaging device 100 for aramid pulp sets the stirring paddle 112 in the tank body 111, improves the stirring effect of the material, makes the material in the tank body 111 fully stirred and mixed, and improves the uniformity of the density of the material; and the discharge valve 113 is rotatably connected to the bottom of the tank body 111, so that the discharge valve 113 can rotate to discharge when rotating relative to the tank body 111, thereby avoiding the blockage caused by adhesion when discharging the material.

[0092] (4) The packaging device 100 for aramid pulp selects a suitable bag film and forms the bag by the bag making mechanism 140, improves the sealing performance of the bag, isolates the air and moisture in the environment to avoid entering the bag and affecting the performance of the material, reduces the length of the heat sealing contact line, reduces the heat sealing defective rate, and improves the edge strength of the bag through the folding angle structure.

[0093] (5), the packing device 100 for aramid pulp in the briquetting operation process, by adjusting the right angle edge in the compression process to curved surface, solved the problem of compaction density instability, compaction uneven hard block. In the compression process, the friction between the material and the inner cavity of the bag is reduced, the stress concentration is reduced, and the hard block formation condition is eliminated.

[0094] (6), the packing method for aramid pulp based on the packing device 100 for aramid pulp optimizes the packing process relative to the prior art, avoids the existence of weight difference through reinspection of the material bag, and prevents negative impact on the overall quality.

[0095] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A packing device for aramid pulp, characterized by, The packaging device for aramid pulp comprises a raw material storage tank (110), a conveying and weighing mechanism (120), a briquetting mechanism (130), a bag making mechanism (140), a re-inspection mechanism (150) and a stacking mechanism (160) arranged in sequence. The raw material storage tank (110) is used for outputting materials, the conveying and weighing mechanism (120) is used for conveying and weighing the materials, the briquetting mechanism (130) is used for extruding the materials to form briquettes, the bag making mechanism (140) is used for forming a bag film and packaging the briquettes to form a bag, the re-inspection mechanism (150) is used for re-inspecting the bag, and the stacking mechanism (160) is used for stacking the bag. The raw material storage tank (110) comprises a tank body (111), a stirring paddle (112) and a discharge valve (113), the stirring paddle (112) is arranged in the tank body (111) and used for stirring materials, and the discharge valve (113) is connected to the bottom of the tank body (111) and used for rotating discharge.

2. The apparatus for packing aramid pulp according to claim 1, wherein The discharge valve (113) is rotationally connected with the tank body (111).

3. The apparatus for packing aramid pulp according to claim 2, wherein The stirring paddle (112) has a variable diameter structure.

4. The apparatus for packing aramid pulp according to claim 2, wherein The packaging device for aramid pulp further comprises an electrostatic removal mechanism (170) arranged between the raw material storage tank (110) and the conveying and weighing mechanism (120).

5. The apparatus for packing aramid pulp according to any one of claims 1 to 4, characterized in that, The electrostatic removal mechanism (170) is an ion fan or an ion rod device.

6. The apparatus for packing aramid pulp according to claim 5, wherein The bag film has a three-layer structure, and the melting point of the middle layer is higher than that of the upper and lower layers.

7. The apparatus for packing aramid pulp according to any one of claims 1 to 4, wherein The bag film has at least two layers, at least one of which is a PE film or a PVC film or an HDPE film. The bag film comprises an antistatic agent.

8. The apparatus for packing aramid pulp according to any one of claims 1 to 4, wherein The bottom of the bag is formed with a flange angle. The edge of the compression cavity of the briquetting mechanism (130) is curved. The re-inspection mechanism (150) comprises a re-weighing machine (152) used for re-weighing the bag.

9. The apparatus for packing aramid pulp according to any one of claims 1 to 4, wherein The re-inspection mechanism (150) comprises a metal detector (154) used for metal detection of the bag. The packaging device for aramid pulp further comprises a labeling machine (180) used for labeling the re-inspected bag.

10. The apparatus for packing aramid pulp according to any one of claims 1 to 4, wherein ​

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