阅读说明：本技术 一种基于化工的高分子阻燃剂包装工艺 (Chemical-based high-molecular flame retardant packaging process ) 是由 余春庆 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种基于化工的高分子阻燃剂包装工艺,步骤三、包装：将破碎成块状的固体烘干,破碎,再次烘干、粉碎,制得高分子阻燃剂,然后将高分子阻燃剂利用包装设备进行包装加工即可,本发明涉及阻燃剂加工技术领域。该基于化工的高分子阻燃剂包装工艺,利用第一电机提供动力输出,可以调节顶料盘与排料方管之间的位置,从而确定阻燃剂的落料量,同时设置的遮挡切换机构,可以在确定阻燃剂的落料量后方便切换落料,配合设置的循环组件,可以实现阻燃剂的循环上料过程,避免人工操作的繁琐过程,相对于传统的开关控制落料,一来无需重复开关操作,二来包容性强,不会由于上料过多造成影响。(The invention discloses a chemical-based high-molecular flame retardant packaging process, which comprises the following steps: drying and crushing the solid which is crushed into blocks, drying and crushing the solid again to prepare the macromolecular flame retardant, and then packaging and processing the macromolecular flame retardant by using packaging equipment. This polymer flame retardant packaging technology based on chemical industry, utilize first motor to provide power take off, can adjust the position between top charging tray and the row material side pipe, thereby confirm the blanking volume of flame retardant, the switching mechanism that shelters from that sets up simultaneously, can conveniently switch the blanking after the blanking volume of confirming the flame retardant, the circulation subassembly that the cooperation set up, can realize the circulation material loading process of flame retardant, avoid manual operation's loaded down with trivial details process, for traditional on-off control blanking, one need not the repetitive switch operation, it is strong to come inclusion, can not cause the influence because the material loading is too much.)

1. A chemical-based high-molecular flame retardant packaging process specifically comprises the following steps:

step one, synthesizing a flame retardant: adding dicyandiamide and melamine into a high molecular weight urea-phenolic polymer, heating to 70-80 ℃, controlling the flow rate, continuously adding a formaldehyde solution, and continuously reacting for 4-5 hours under the constant temperature condition;

step two, curing: concentrating and cooling the solution in the step one, discharging the reacted polymer to a cooling tank while the polymer is hot, cooling the polymer to form a semitransparent blocky solid, and crushing the solid into blocks;

step three, packaging: drying and crushing the solid crushed into blocks, drying and crushing the solid again to prepare the macromolecular flame retardant, and then packaging and processing the macromolecular flame retardant by using packaging equipment;

wherein, step three the equipment for packing in, including workstation (1), be located workbin (2) of workstation (1) top one side and set up inlet pipe (3) on workbin (2), its characterized in that: a base (5) with a through type through hole design is fixed at the top of the workbench (1) through a folded plate (4), a packaging barrel (6) is arranged below the base (5), a top opening of the packaging barrel (6) is aligned with the through type through hole design of the base (5), an extension seat (10) is fixed at the top of the base (5) through a plurality of support rods, a charging barrel (11) is fixed at the top of the extension seat (10), the bottom end of the feeding pipe (3) extends into the charging barrel (11), an adjustable blanking unit (7) is arranged inside the charging barrel (11), a sealing mechanism (8) is arranged among the workbench (1), the base (5) and the extension seat (10), and an intermittent conveying mechanism (9) is arranged outside the workbench (1);

the adjustable blanking unit (7) comprises a first motor (71) fixed to the bottom of the inner wall of the charging barrel (11), a threaded sleeve (72) is fixed to the output end of the first motor (71) through a coupler, a threaded rod (73) is connected to the inner surface of the threaded sleeve (72) in a extending mode, a sliding disc (74) slides on the inner wall of the charging barrel (11), the bottom of the sliding disc (74) rotates relative to the top end of the threaded rod (73), a material pushing disc (75) slides on the inner wall of the charging barrel (11) above the sliding disc (74), a first hydraulic rod (76) is fixed to the top end of the first hydraulic rod (76) and the bottom of the material pushing disc (75), a discharging square pipe (79) and a discharging square pipe (710) are respectively fixed to the upper sides of the charging barrel (11) from left to right, the inner walls of the discharging square pipe (79) and the discharging square pipe (710) are all designed in an inclined mode, the bottom end of the discharging square tube (79) is fixedly communicated with a connecting tube (711), the bottom end of the connecting tube (711) is positioned above the packaging tube (6), the discharging square tube (79) and the discharging square tube (710) are arranged in an aligned mode, a shielding switching mechanism (77) is arranged at the discharging square tube (79) and the discharging square tube (710) to shield the discharging square tube (79) or the discharging square tube (710), and a circulating assembly (78) is arranged between the discharging square tube (710) and the material box (2);

the shielding switching mechanism (77) comprises a second motor (77-1) fixed at the top of the charging barrel (11), an output shaft of the second motor (77-1) is fixed with a rotating shaft (77-2) through a coupler and extends into the charging barrel (11), a baffle (77-3) is rotated on the inner wall of the charging barrel (11), the bottom of the baffle (77-3) is flush with the lower parts of openings of the discharging square pipe (79) and the discharging square pipe (710), an arc-shaped rack (77-4) is fixed above the inner wall of the baffle (77-3), and a gear (77-5) fixed on the outer surface of the rotating shaft (77-2) is meshed with one side of the arc-shaped rack (77-4);

circulation subassembly (78) are including fixing riser (78-1) at workstation (1) top both sides, two just be located the below of arranging material side pipe (710) between the top of riser (78-1) and be fixed with and connect material seat (78-2), connect and be fixed with between material seat (78-2) and workbin (2) to put guide rail (78-3) to one side.

2. The chemical industry-based high-molecular flame retardant packaging process according to claim 1, characterized in that: sealing mechanism (8) are including fixing second hydraulic stem (81) in extension seat (10) bottom, the bottom mounting of second hydraulic stem (81) has heating platen (82), connecting pipe (711) pass heating platen (82) and with the bottom parallel and level of heating platen (82), and the below of connecting pipe (711) adopts elastic material, the both sides at workstation (1) top all are fixed with two frame plates (83), two of adjacent side all are fixed with rotary column (84) between frame plate (83), be provided with between frame plate (83) and rotary column (84) two rotary column (84) synchronous rotations of drive assembly (85) drive.

3. The chemical industry-based high-molecular flame retardant packaging process according to claim 2, characterized in that: two the winding has soft lamina membranacea (86) between rotary column (84), be provided with circular diaphragm (87) on soft lamina membranacea (86), and the top adaptation of the size of circular diaphragm (87) and a packing section of thick bamboo (6), the outside of circular diaphragm (87) is fixed with a plurality of and tears pulling-on piece (88), and tears one side of pulling-on piece (88) and the inner wall of soft lamina membranacea (86) and fix, and base (5) are passed in soft lamina membranacea (86).

4. The chemical industry-based high-molecular flame retardant packaging process according to claim 2, characterized in that: the driving assembly (85) comprises a third motor (85-1) fixed on one frame plate (83), one end of an output shaft of the third motor (85-1) is fixed with one end of each rotary column (84) through a coupler, driving wheels (85-2) are fixed on the outer surfaces of the two rotary columns (84), and a driving belt (85-3) is arranged between the two driving wheels (85-2) in a driving mode.

5. The chemical industry-based high-molecular flame retardant packaging process according to claim 1, characterized in that: intermittent type conveying mechanism (9) are including rotating bull stick (91) at workstation (1) top, the external fixed surface of bull stick (91) has intermittent type dish (92), the surface of bull stick (91) and the top that is located intermittent type dish (92) are fixed with places dish (93), the top of workstation (1) is fixed with casing (94) and places and is provided with the clearance of placing packing section of thick bamboo (6) between dish (93), and is provided with between casing (94) and workstation (1) and adapts to subassembly (95).

6. The chemical industry-based high-molecular flame retardant packaging process according to claim 5, characterized in that: the bottom of workstation (1) is fixed with frame (96), and the top of frame (96) is fixed with fourth motor (97), the output of fourth motor (97) extends to the outside of workstation (1), the fixed surface of fourth motor (97) output has carousel (98), and the internal surface contact of the external surface fixed with projection (99) of carousel (98) and intermittent type dish (92).

7. The chemical industry-based high-molecular flame retardant packaging process according to claim 5, characterized in that: both sides at workstation (1) top all are fixed with high low board (910), two be fixed with between high low board (910) slope baffle (911), and the top of slope baffle (911) is located the below of placing dish (93).

8. The chemical industry-based high-molecular flame retardant packaging process according to claim 5, characterized in that: adapt to subassembly (95) including fixing third hydraulic stem (95-1) in workstation (1) bottom, the output of third hydraulic stem (95-1) extends to the outside of workstation (1), run through on casing (94) and seted up round hole (95-2), and round block (95-3) have been placed to the internal surface adaptation of round hole (95-2), the bottom of round block (95-3) is fixed with the output of third hydraulic stem (95-1).

Technical Field

The invention relates to the technical field of flame retardant processing, in particular to a chemical-based high-molecular flame retardant packaging process.

Background

The flame retardant is a functional auxiliary agent for endowing the inflammable polymer with flame retardancy, and is mainly designed aiming at the flame retardancy of a high polymer material; the flame retardants are of various types, and are classified into additive type flame retardants and reactive type flame retardants according to the method of use. The additive flame retardant is added into the polymer by a mechanical mixing method to enable the polymer to have flame retardance, and at present, the additive flame retardant mainly comprises an organic flame retardant, an inorganic flame retardant, a halogen flame retardant (organic chloride and organic bromide) and non-halogen. Organic flame retardants are represented by bromine, phosphorus-nitrogen, red phosphorus and compounds, and inorganic flame retardants are mainly flame retardant systems such as antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and the like.

The prior macromolecular flame retardant has the following defects in the packaging process:

1. when the high-molecular flame retardant is packaged, a switch is mostly adopted for controlling blanking in the traditional method, but the control program of the switch relates to the program of the switch, and the closing process has gap time, so that the inclusion of the switch control is poor, the loading amount is easy to generate excessive conditions, the subsequent packaging precision is influenced, meanwhile, the switch also needs to be repeatedly operated, and the process is complicated;

2. when the high molecular flame retardant is packaged, the high molecular flame retardant is conveyed to the next station for packaging after quantitative feeding, but in the conveying process, the flame retardant after quantitative feeding is scattered and leaked possibly due to manual holding or machine reasons, and the precision of subsequent packaging is difficult to ensure;

3. during the packing of polymer fire retardant, the tradition all is that the fire retardant manual work of packing is taken off, then places the fire retardant after will taking off and carry on the conveyer belt, needs manual intervention, and the time that just lasts is long, wastes time and energy, and degree of automation is low.

Therefore, the invention provides a chemical-based high-molecular flame retardant packaging process.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a chemical-based high-molecular flame retardant packaging process, which solves the problems that the inclusion of quantitative feeding is controlled by a switch when the conventional high-molecular flame retardant is packaged, the flame retardant after quantitative feeding is easy to leak in the conveying process, and the packaged flame retardant needs to be manually taken down.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a chemical-based high-molecular flame retardant packaging process specifically comprises the following steps:

step one, synthesizing a flame retardant: adding dicyandiamide and melamine into a high molecular weight urea-phenolic polymer, heating to 70-80 ℃, controlling the flow rate, continuously adding a formaldehyde solution, and continuously reacting for 4-5 hours under the constant temperature condition;

step two, curing: concentrating and cooling the solution in the step one, discharging the reacted polymer to a cooling tank while the polymer is hot, cooling the polymer to form a semitransparent blocky solid, and crushing the solid into blocks;

step three, packaging: drying and crushing the solid crushed into blocks, drying and crushing the solid again to prepare the macromolecular flame retardant, and then packaging and processing the macromolecular flame retardant by using packaging equipment;

the packaging equipment comprises a workbench, a material box positioned on one side of the top of the workbench and a feeding pipe arranged on the material box, wherein a base with a through type through hole design is fixed at the top of the workbench through a folded plate, a packaging barrel is arranged below the base, an open top of the packaging barrel is aligned with the through type through hole design of the base, an extending seat is fixed at the top of the base through a plurality of supporting rods, a material barrel is fixed at the top of the extending seat, the bottom end of the feeding pipe extends into the material barrel, an adjustable blanking unit is arranged inside the material barrel, a sealing mechanism is arranged among the workbench, the base and the extending seat, and an intermittent conveying mechanism is arranged on the outer side of the workbench; the adjustable blanking unit comprises a first motor fixed at the bottom of the inner wall of the charging barrel, the output end of the first motor is fixed with a threaded sleeve through a coupler, the inner surface of the threaded sleeve extends to the outside and is connected with a threaded rod in a threaded manner, the inner wall of the charging barrel slides to form a sliding disc, the bottom of the sliding disc and the top end of the threaded rod rotate, the inner wall of the charging barrel is positioned above the sliding disc and slides to form a material ejection disc, a first hydraulic rod is fixed at the top of the sliding disc, the top end of the first hydraulic rod is fixed with the bottom of the material ejection disc, the upper parts of the two sides of the charging barrel are respectively communicated and fixed with a discharging square pipe and a discharging square pipe from left to right, the inner walls of the discharging square pipe and the discharging square pipe are designed in an inclined manner, the bottom end of the discharging square pipe is communicated and fixed with a connecting pipe, the bottom end of the connecting pipe is positioned above the packaging barrel, and the discharging square pipe are aligned with each other, the discharging square tube and the discharging square tube are provided with a shielding switching mechanism for shielding the discharging square tube or the discharging square tube, and a circulating assembly is arranged between the discharging square tube and the material box; the shielding switching mechanism comprises a second motor fixed at the top of the charging barrel, an output shaft of the second motor is fixedly provided with a rotating shaft through a coupler and extends into the charging barrel, a baffle rotates on the inner wall of the charging barrel, the bottom of the baffle is flush with the lower parts of the openings of the discharging square tube and the discharging square tube, an arc-shaped rack is fixed above the inner wall of the baffle, and a gear is fixed on the outer surface of the rotating shaft and is meshed with one side of the arc-shaped rack; circulation subassembly is including fixing the riser in workstation top both sides, two just be located the below of arranging material side's pipe between the top of riser and be fixed with and connect the material seat, connect and be fixed with the guide rail of putting to one side between material seat and the workbin.

Preferably, sealing mechanism is including fixing the second hydraulic stem in extension seat bottom, the bottom mounting of second hydraulic stem has the hot pressing board, the connecting pipe pass hot pressing board and with hot pressing board's bottom parallel and level, and the below of connecting pipe adopts elastic material, the both sides at workstation top all are fixed with two frame plates, two of adjacent side all be fixed with the rotary column between the frame plate, be provided with two rotary column synchronous rotations of drive assembly drive between frame plate and the rotary column.

Preferably, two the winding has soft lamina membranacea between the rotary column, be provided with circular diaphragm on the soft lamina membranacea, and the top adaptation of the size of circular diaphragm and packaging barrel, the outside of circular diaphragm is fixed with a plurality of and tears the piece, and tears one side of piece and the inner wall of soft lamina membranacea fixed, and soft lamina membranacea passes the base.

Preferably, the driving assembly comprises a third motor fixed on one of the frame plates, one end of an output shaft of the third motor is fixed with one end of each of the rotary columns through a coupler, driving wheels are fixed on the outer surfaces of the two rotary columns, and a driving belt is arranged between the two driving wheels in a driving mode.

Preferably, intermittent type conveying mechanism is including rotating the bull stick at the workstation top, the external surface mounting of bull stick has intermittent type dish, the surface of bull stick and the top that is located intermittent type dish are fixed with places the dish, the top mounting of workstation has the casing and places and be provided with the clearance of placing a packing section of thick bamboo between the dish, and is provided with the adaptation subassembly between casing and the workstation.

Preferably, the bottom of workstation is fixed with the frame, and the top of frame is fixed with the fourth motor, the output of fourth motor extends to the outside of workstation, the fixed surface of fourth motor output has the carousel, and the external surface of carousel is fixed with the internal surface contact of projection and intermittent type dish.

Preferably, both sides of the top of the workbench are fixed with high and low plates, an inclined guide plate is fixed between the high and low plates, and the top of the inclined guide plate is positioned below the placing disc.

Preferably, the adaptation subassembly is including fixing the third hydraulic stem in the workstation bottom, the output of third hydraulic stem extends to the outside of workstation, run through on the casing and seted up the round hole, and the internal surface adaptation of round hole has placed the disk, the bottom of disk is fixed with the output of third hydraulic stem.

(III) advantageous effects

The invention provides a chemical-based high-molecular flame retardant packaging process. Compared with the prior art, the method has the following beneficial effects:

(1) this polymer flame retardant packaging technology based on chemical industry, through the inside at the feed cylinder sets up adjustable blanking unit, utilize first motor to provide power take off, through the thread bush, the cooperation of threaded rod and slip dish, can adjust the top charging tray and arrange the position between the material side pipe, thereby confirm the blanking volume of fire retardant, the switching mechanism that shelters from that sets up simultaneously, can conveniently switch the blanking after confirming the blanking volume of fire retardant, the circulation subassembly that the cooperation set up, can realize the circulation material loading process of fire retardant, avoid manual operation's loaded down with trivial details process, for traditional on-off control blanking, one need not the repetition switch operation, it is strong to come inclusion, can not cause the influence because the material loading is too much.

(2) This polymer flame retardant packaging technology based on chemical industry, through at the workstation, the base sets up sealing mechanism with extending between the seat, utilize the third motor to provide power take off, through drive wheel and drive belt transmission power, the rotation process of cooperation rotary column, can realize that soft lamina membranacea removes in the base, under the effect of second hydraulic stem and hot pressing plate, it reduces the effort between circular diaphragm and the soft lamina membranacea to tear the pulling-on piece simultaneously, can carry out preliminary sealing after packing section of thick bamboo ration material loading, avoid causing the hourglass at the in-process of carrying, guarantee the precision of follow-up packing.

(3) This polymer fire retardant packaging technology based on chemical industry, set up intermittent type conveying mechanism through the outside at the workstation, utilize the fourth motor to provide power take off, through the rotation process of carousel and projection, cooperation intermittent type dish and projection contact, can realize intermittent type dish and the intermittent type rotation process of placing the dish, can accomplish back automatic transportation at packing section of thick bamboo packing, need not artifical the intervention, use manpower sparingly, the height board and the slope baffle that the cooperation set up, utilize the automatic unloading of inclination, and the operation is simple, and degree of automation is high.

Drawings

FIG. 1 is a perspective view of the external structure from a first perspective of the present invention;

FIG. 2 is a perspective view of the outer structure from a second perspective of the present invention;

FIG. 3 is a schematic perspective view of an adjustable blanking unit according to the present invention;

FIG. 4 is a schematic perspective view of a shielding switching mechanism according to the present invention;

FIG. 5 is a first perspective view of the sealing mechanism of the present invention;

FIG. 6 is a perspective view of the sealing mechanism of the present invention from a second perspective;

FIG. 7 is a schematic perspective view of an intermittent feed mechanism according to the present invention;

fig. 8 is a perspective view showing the intermittent feed mechanism of the present invention.

In the figure, 1-workbench, 2-material box, 3-material feeding pipe, 4-folded plate, 5-base, 6-packaging barrel, 7-adjustable blanking unit, 71-first motor, 72-thread sleeve, 73-threaded rod, 74-sliding disk, 75-material ejecting disk, 76-first hydraulic rod, 77-shielding switching mechanism, 77-1-second motor, 77-2-rotating shaft, 77-3-baffle plate, 77-4-arc rack, 77-5-gear, 78-circulating component, 78-1-vertical plate, 78-2-material receiving seat, 78-3-inclined guide rail, 79-material discharging square pipe, 710-material discharging square pipe, 711-connecting pipe, 8-sealing mechanism, 81-second hydraulic rod, 82-heating press plate, 83-frame plate, 84-rotary column, 85-driving component, 85-1-third motor, 85-2-driving wheel, 85-3-driving belt, 86-soft film plate, 87-round film, 88-tearing piece, 9-intermittent conveying mechanism, 91-rotary rod, 92-intermittent disk, 93-placing disk, 94-shell, 95-adaptive component, 95-1-third hydraulic rod, 95-2-round hole, 95-3-round block, 96-machine frame, 97-fourth motor, 98-rotary disk, 99-convex column, 910-high-low plate, 911-inclined guide plate, 10-extending seat and 11-material barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: a chemical-based high-molecular flame retardant packaging process specifically comprises the following steps:

step one, synthesizing a flame retardant: adding dicyandiamide and melamine into a high molecular weight urea-phenolic polymer, heating to 70-80 ℃, controlling the flow rate, continuously adding a formaldehyde solution, and continuously reacting for 4-5 hours under the constant temperature condition;

step two, curing: concentrating and cooling the solution in the step one, discharging the reacted polymer to a cooling tank while the polymer is hot, cooling the polymer to form a semitransparent blocky solid, and crushing the solid into blocks;

step three, packaging: drying and crushing the solid crushed into blocks, drying and crushing the solid again to prepare the macromolecular flame retardant, and then packaging and processing the macromolecular flame retardant by using packaging equipment;

wherein, the packaging device in the third step comprises a workbench 1, a material box 2 positioned on one side of the top of the workbench 1 and a feeding pipe 3 arranged on the material box 2, a material pumping pump is arranged in the material box 2 and is communicated with the feeding pipe 3 through the material pumping pump for pumping material, the conventional feeding principle in the field is adopted, a base 5 with a through type through hole design is fixed on the top of the workbench 1 through a folded plate 4, a packaging barrel 6 is arranged below the base 5, the packaging barrel 6 is the conventional arrangement for packaging fire retardant, the top opening of the packaging barrel 6 is aligned with the through type through hole design of the base 5, an extension seat 10 is fixed on the top of the base 5 through a plurality of support rods, a material cylinder 11 is fixed on the top of the extension seat 10, the bottom end of the feeding pipe 3 extends into the material cylinder 11, an adjustable blanking unit 7 is arranged in the material cylinder 11, and a sealing mechanism 8 is arranged between the workbench 1, the base 5 and the extension seat 10, an intermittent conveying mechanism 9 is arranged on the outer side of the workbench 1; the adjustable blanking unit 7 comprises a first motor 71 fixed at the bottom of the inner wall of the charging barrel 11, the first motor 71 is a three-phase asynchronous motor and is electrically connected with an external power supply, the clockwise rotation of the motor is the forward rotation of the motor, the anticlockwise rotation of the motor is the reverse rotation of the motor, a forward and reverse rotation control circuit diagram and principle analysis thereof are to realize that the forward and reverse rotation of the motor can be realized only by connecting any two opposite connecting wires in the three-phase power supply incoming line of the motor, a threaded sleeve 72 is fixed at the output end of the first motor 71 through a coupler, a threaded rod 73 is connected on the inner surface of the threaded sleeve 72 and extends to the external thread, a sliding disk 74 slides on the inner wall of the charging barrel 11, the sliding disk 74 and the inner wall of the charging barrel 11 can only slide and cannot rotate, for example, a sliding chute slider form is adopted, the bottom of the sliding disk 74 and the top end of the threaded rod 73 rotate, and a material ejecting disk 75 slides on the inner wall of the charging barrel 11 and is positioned above the sliding disk 74, a first hydraulic rod 76 is fixed at the top of the sliding disk 74, the oil inlet of the first hydraulic rod 76 is communicated with the oil outlet of the external oil pump, the top end of the first hydraulic rod 76 is fixed with the bottom of the material ejecting disc 75, a discharging square pipe 79 and a discharging square pipe 710 are respectively communicated and fixed above the two sides of the charging barrel 11 from left to right, the inner walls of the discharging square pipe 79 and the discharging square pipe 710 are both designed to be inclined, the flame retardant can normally fall off due to the inclined design, a connecting pipe 711 is communicated and fixed with the bottom end of the discharging square pipe 79, the lower part of the connecting pipe 711 has elasticity, for example, a spring tube, and the bottom end of the connecting tube 711 is located above the packing tube 6, the discharging square tube 79 and the discharging square tube 710 are aligned, the discharging square pipe 79 and the discharging square pipe 710 are provided with a shielding switching mechanism 77 for shielding the discharging square pipe 79 or the discharging square pipe 710, and a circulating assembly 78 is arranged between the discharging square pipe 710 and the feed box 2; the shielding switching mechanism 77 comprises a second motor 77-1 fixed at the top of the charging barrel 11, the second motor 77-1 is a three-phase asynchronous motor and is electrically connected with an external power supply, an output shaft of the second motor 77-1 is fixed with a rotating shaft 77-2 through a coupler and extends into the charging barrel 11, a baffle 77-3 is rotated on the inner wall of the charging barrel 11, the baffle 77-3 can only block the discharging square tube 79 or the discharging square tube 710, the bottom of the baffle 77-3 is flush with the lower part of the openings of the discharging square tube 79 and the discharging square tube 710, an arc-shaped rack 77-4 is fixed above the inner wall of the baffle 77-3, and a gear 77-5 fixed on the outer surface of the rotating shaft 77-2 is meshed with one side of the arc-shaped rack 77-4; the circulating assembly 78 comprises vertical plates 78-1 fixed on two sides of the top of the workbench 1, a material receiving seat 78-2 is fixed between the tops of the two vertical plates 78-1 and below the material discharging square tube 710, an inclined guide rail 78-3 is fixed between the material receiving seat 78-2 and the material box 2, and a material feeding channel is formed in one side of the material box 2.

Referring to fig. 5-6, the sealing mechanism 8 includes a second hydraulic rod 81 fixed at the bottom of the extension seat 10, an oil inlet of the second hydraulic rod 81 is communicated with an oil outlet of an external oil pump, a heating pressing plate 82 is fixed at the bottom end of the second hydraulic rod 81, the heating pressing plate 82 is electrically connected with an external power supply, the surface of the second hydraulic rod can be heated to 40-70 ℃, a connecting pipe 711 penetrates through the heating pressing plate 82 and is flush with the bottom of the heating pressing plate 82, the connecting pipe 711 can move up and down along with the heating pressing plate 82 due to elasticity, the lower part of the connecting pipe 711 is made of an elastic material, two frame plates 83 are fixed at both sides of the top of the workbench 1, a rotary column 84 is fixed between the two frame plates 83 at adjacent sides, a driving assembly 85 is arranged between the frame plates 83 and the rotary column 84 to drive the two rotary columns 84 to rotate synchronously, a soft membrane plate 86 is wound between the two rotary columns 84, the soft membrane plate 86 is a conventional arrangement in the field, the round membrane 87 is arranged on the soft membrane plate 86, the round membrane 87 can be attached to the top of the packaging barrel 6, the round membrane 87 is matched with the top end of the packaging barrel 6 in size, a plurality of tearing pieces 88 are fixed on the outer side of the round membrane 87, the tearing pieces 88 are arranged to conveniently separate the round membrane 87 from the soft membrane plate 86, one side of each tearing piece 88 is fixed with the inner wall of the soft membrane plate 86, the soft membrane plate 86 penetrates through the base 5, the driving assembly 85 comprises a third motor 85-1 fixed on one of the frame plates 83, the third motor 85-1 is electrically connected with an external power supply, one end of an output shaft of the third motor 85-1 is fixed with one end of the rotary columns 84 through a coupler, driving wheels 85-2 are fixed on the outer surfaces of the two rotary columns 84, a driving belt 85-3 is arranged between the two driving wheels 85-2, and the driving wheels 85-2 and the driving belt 85-3 are arranged, such as a chain wheel and a chain, Pulleys and belts.

Referring to fig. 7-8, the intermittent feeding mechanism 9 includes a rotating rod 91 rotating on the top of the worktable 1, an intermittent tray 92 is fixed on the outer surface of the rotating rod 91, a placing tray 93 is fixed on the surface of the rotating rod 91 and above the intermittent tray 92, a gap for placing the packaging tube 6 is arranged between a housing 94 and the placing tray 93 fixed on the top of the worktable 1, an adapting assembly 95 is arranged between the housing 94 and the worktable 1, a frame 96 is fixed on the bottom of the worktable 1, a fourth motor 97 is fixed on the top of the frame 96, the fourth motor 97 is electrically connected with an external power supply, the output end of the fourth motor 97 extends to the outside of the worktable 1, a turntable 98 is fixed on the surface of the output end of the fourth motor 97, a convex column 99 fixed on the outer surface of the turntable 98 is in contact with the inner surface of the intermittent tray 92, high and low plates 910 are fixed on both sides of the top of the worktable 1, an inclined guide plate 911 is fixed between the two high and low plates 910, there is inclination in slope baffle 911, the convenient transportation, and the top of slope baffle 911 is located the below of placing dish 93, adaptation subassembly 95 is including fixing the third hydraulic stem 95-1 in workstation 1 bottom, the oil-out intercommunication of the oil inlet of third hydraulic stem 95-1 and outside oil pump, the output of third hydraulic stem 95-1 extends to the outside of workstation 1, circular hole 95-2 has been seted up in running through on the casing 94, and the internal surface adaptation of circular hole 95-2 has placed round block 95-3, the bottom of round block 95-3 is fixed with the output of third hydraulic stem 95-1.

And those not described in detail in this specification are well within the skill of those in the art.

Quantitative blanking: firstly, the feeding amount is adjusted according to the height of the packaging barrel 6, at the moment, the first motor 71 is started, the first motor 71 drives the threaded sleeve 72 to rotate, the threaded sleeve 72 rotates to enable the threaded rod 73 to move upwards or downwards, the threaded rod 73 moves upwards or downwards to drive the sliding disc 74 to move upwards or downwards, the sliding disc 74 moves upwards or downwards to drive the first hydraulic rod 76 to move upwards or downwards, the first hydraulic rod 76 moves upwards or downwards to enable the material ejecting disc 75 to move upwards or downwards, at the moment, the distance between the material ejecting disc 75 and the discharging square pipe 710 is the feeding amount, at the moment, the flame retardant in the material box 2 is fed into the material barrel 11 through the material box 2 and the feeding pipe 3, when the feeding amount is excessive, at the moment, the excessive flame retardant is discharged from the discharging square pipe 710 and falls on the material receiving seat 78-2, and is fed into the material box 2 again under the action of the inclined guide rail 78-3, when blanking is needed, the second motor 77-1 is started at the moment, the rotating shaft 77-2 is driven to rotate through the second motor 77-1, the rotating shaft 77-2 further drives the gear 77-5 to rotate, the gear 77-5 rotates to enable the meshed arc-shaped rack 77-4 to rotate, the arc-shaped rack 77-4 rotates to drive the baffle 77-3 to rotate until the baffle 77-3 rotates to block the discharging square pipe 710, the discharging square pipe 79 is opened at the moment, then the first hydraulic rod 76 is started, the material ejecting plate 75 is pushed through the first hydraulic rod 76, at the moment, the flame retardant enters the discharging square pipe 79 under the action of the material ejecting plate 75, and then the flame retardant falls into the packaging barrel 6 through the connecting pipe 711;

and (3) film sealing treatment: at this time, the third motor 85-1 is started, the rotating column 84 is driven to rotate by the third motor 85-1, the rotating column 84 further drives one of the driving wheels 85-2 to rotate, the two driving wheels 85-2 are driven to synchronously rotate under the action of the driving belt 85-3, the two driving wheels 85-2 synchronously rotate to ensure that the two rotary columns 84 synchronously rotate, at the moment, the soft membrane plate 86 moves forwards, so that the axle center of the circular membrane 87 and the axle center of the packaging tube 6 are on the same vertical line, at this time, the second hydraulic rod 81 is started, the heating press plate 82 is driven by the second hydraulic rod 81 to move downwards, in the state where the heating platen 82 is heated, not only after the circular membrane 87 is broken against the tensile force of the tear tab 88, the heated circular film 87 is easier to adhere to the packaging cylinder 6, and at the moment, the heating pressing plate 82 presses the circular film 87 to adhere the circular film 87 to the packaging cylinder 6 for primary sealing;

intermittent feeding: at the moment, the fourth motor 97 is started, the turntable 98 is driven to rotate through the fourth motor 97, the turntable 98 further drives the convex column 99 to rotate, the convex column 99 rotates to enable the intermittent disc 92 to intermittently rotate, the intermittent disc 92 intermittently rotates to drive the placing disc 93 to intermittently rotate, the placing disc 93 intermittently rotates, the packaging barrel 6 falls above the inclined guide plate 911 at the moment, the packaging barrel is transported under the action of the inclination angle of the inclined guide plate 911 at the moment, when the charging barrels 6 with different heights are used, only when the charging barrels 6 move to the round blocks 95-3, the third hydraulic rod 95-1 is started at the moment, the round blocks 95-3 are jacked through the third hydraulic rod 95-1, the charging barrels 6 are attached to the base 5, and the initial state is recovered after sealing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.