Flame retardant production feeding device

Abstract

The utility model provides a flame retardant production feeding device, which belongs to the technical field of flame retardant processing, and comprises a shell, the shell is provided with a material storage box, the lower part of the material storage box is communicated with a blanking pipe, and a first rubber cylinder, a second rubber cylinder, a material storage pipe and a discharge pipe are arranged below the blanking pipe; a rotatable threaded rod is further arranged in the shell and connected with a first plugging plate and a second plugging plate from top to bottom, and a channel between the discharging pipe and the discharging pipe can be intermittently plugged when the two plugging plates rotate. By means of the design, the materials can be put into the material storage box at a time, intermittent and quantitative material putting is achieved through rotation of the two plugging discs, manual weighing and putting are not needed, the feeding time is saved, and the mixing quality and mixing efficiency of the materials are improved through multiple times of small-amount putting. And meanwhile, the feeding quantity in the material storage pipe and the second rubber barrel can be adjusted, and the quantity of materials fed every time is increased or decreased by moving the positions of the two rubber barrels and the first plugging disc.

Description

Technical Field

[0001] The utility model belongs to the technical field of flame retardant processing, and in particular relates to a flame retardant production feeding device. Background Art

[0002] Most flame retardants available on the market are non-halogen flame retardants, which have the advantages of low addition amount, high flame retardant efficiency, low smoke, low toxicity, and wide application. Most of these flame retardants are compounded with red phosphorus and inorganic flame retardants such as aluminum hydroxide and expanded graphite. Therefore, in the production process of flame retardants, the raw materials need to be put into a mixing machine in a certain proportion for mixing.

[0003] In the production process of some existing flame retardants, multiple materials are put into a mixing machine at one time through a feeding device for mixing. For example, a feeding device for anti-clogging flame retardant production with patent number 202022976213.1 adds materials from the feeding port. However, the material ratio is adjusted according to the actual processed products during the processing. It is difficult to quantify the materials at one time, which may cause incorrect ratios. It is also difficult to quickly break up and mix the materials fed at one time into the mixing machine, which reduces the processing quality of the product. Weighing and feeding materials in advance will delay time and affect mixing efficiency. Therefore, in actual mixing processing, multiple small amounts can achieve better mixing effects and effectively improve mixing efficiency. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, a flame retardant production feeding device is provided.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The utility model proposes a flame retardant production feeding device, comprising a shell with an open top, a side wall of the shell being provided with an opening and closing door, and also comprising a storage box detachably arranged in the shell, the bottom of the storage box being connected with a feed pipe, a feed pipe being arranged at intervals below the feed pipe, and a discharge pipe being arranged at intervals below the feed pipe, the bottom of the discharge pipe passing through and extending outside the shell; the center points of the feed pipe, the feed pipe and the discharge pipe are on the same axis; a first rubber cylinder is detachably connected below the feed pipe, and a second rubber cylinder is detachably connected above the feed pipe;

[0007] A rotating motor is also arranged in the housing, and a threaded rod is connected to the output shaft of the rotating motor, and a first blocking disk and a second blocking disk are connected to the threaded rod, which are distributed up and down; the first blocking disk is used to temporarily block the gap between the first rubber tube and the second rubber tube, and the second blocking disk is used to temporarily block the gap between the storage pipe and the discharge pipe;

[0008] When the rotating motor drives the threaded rod to rotate, the first sealing disk and the second sealing disk can cooperate to intermittently feed the material.

[0009] Preferably, the first blocking plate and the second blocking plate have the same structure, both comprising a circular plate connected to the threaded rod, and the side wall of the circular plate is connected to a semicircular ring plate;

[0010] The two semicircular ring plates in the first sealing disk and the second sealing disk are arranged in a mirror image and are respectively located on the side walls of the disks at two different heights.

[0011] Preferably, the bottom of the first rubber tube and the top of the second rubber tube are respectively connected with a wedge-shaped closing block, and the two wedge-shaped closing blocks are abutted against each other.

[0012] Preferably, the second sealing disk is fixedly connected to the threaded rod;

[0013] The first sealing disk freely penetrates the threaded column, and positioning nuts are respectively arranged on the upper and lower sides of the first sealing disk, and the positioning nuts are threadedly connected with the threaded rod to realize the positioning of the first sealing disk.

[0014] Preferably, it further comprises a bearing, the inner ring of the bearing is fixedly connected to the threaded rod, the outer ring of the bearing is fixedly connected to a support plate, and the other end of the support plate is fixed to the inner wall of the shell.

[0015] Preferably, a plurality of groups of connecting plates are fixedly connected in the shell, and the connecting plates are respectively connected to the feeding pipe, the storage pipe and the discharging pipe.

[0016] Preferably, a bridge plate is connected to the top of the material storage box, the bridge plate is L-shaped, an electric telescopic rod is connected to the top surface of the bridge plate, the output end of the electric telescopic rod freely passes through the bridge plate and is connected to a piston, and the piston moves up and down in the material storage box and the discharge pipe.

[0017] Preferably, the piston is a truncated cone structure.

[0018] Preferably, the bottom of the material storage box is in a structure that is inclined and gathered toward the lower material pipe.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model is provided with a shell, a storage box is provided in the shell, and a feed pipe, a first rubber cylinder, a second rubber cylinder, a feed pipe and a discharge pipe are provided below the storage box respectively; a rotatable threaded rod is also provided in the shell, and the threaded rod is connected with a first blocking plate and a second blocking plate from top to bottom, and the two sets of blocking plates can intermittently block the passage between the feed pipe and the discharge pipe when rotating. Through this design, the material can be put into the storage box at one time, and the intermittent quantitative feeding of the material can be realized through the rotation of the two blocking plates, without manual weighing and feeding, saving feeding time, and improving the mixing quality and mixing efficiency of the material through multiple small amounts of feeding.

[0021] 2. The feeding amount in the utility model can be adjusted. By moving the positions of the two rubber cylinders and the first sealing disk, the amount of material put in each time can be increased or decreased. It can be adjusted according to actual conditions and is suitable for feeding flame retardants with different ratios, with a wide range of applications.

[0022] 3. The utility model is provided with an electric telescopic rod and a piston. The electric telescopic rod is used to press down to reduce the gap between the materials in the pipeline, so that the material feeding amount is more accurate. At the same time, the piston rod also has the function of cleaning the inside of the pipeline. After the current feeding is completed, the inside of the pipeline can be cleaned to prevent mixing with the next material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0025] Figure 2 It is a half-section view of the utility model.

[0026] Figure 3 It is a structural schematic diagram of the second sealing disk in the shell being in a sealing state.

[0027] Description of reference numerals:

[0028] 1-shell; 2-opening and closing door; 3-storage box; 4-feeding pipe; 5-storage tank; 6-discharging pipe; 7-first rubber cylinder; 8-second rubber cylinder; 9-rotating motor; 10-threaded rod; 11-first blocking disk; 12-second blocking disk; 13-disc; 14-semicircular ring plate; 15-wedge-shaped closing block; 16-positioning nut; 17-bearing; 18-support plate; 19-connecting plate; 20-bridge plate; 21-electric telescopic rod; 22-piston. DETAILED DESCRIPTION

[0029] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centrally arranged component at the same time.

[0031] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0032] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] like Figure 1-Figure 3 As shown, this embodiment proposes a flame retardant production feeding device. The flame retardant in the prior art is generally red phosphorus and inorganic flame retardants such as aluminum hydroxide and expanded graphite, which are used to make composite phosphorus / magnesium; phosphorus / aluminum; phosphorus / graphite and other non-halogen flame retardants. The amount of flame retardant can be greatly reduced, thereby improving the processing performance and physical and mechanical properties of plastic products. Therefore, in actual production, red phosphorus needs to be mixed with aluminum hydroxide or a variety of substances for processing, but the proportions required for different materials during processing are different. It is difficult to quantify the one-time feeding, which can easily cause inaccurate ratios, reduce the processing quality of finished products, and delay time for pre-weighing. Based on this, a flame retardant production feeding device is studied, which can feed different substances into the mixing machine in proportion to improve the mixing quality and mixing efficiency.

[0035] In the actual production and processing process, a variety of materials need to be mixed and matched, so several groups of flame retardant production feeding devices in this solution can be set above the mixing machine as needed; the flame retardant production feeding device mainly includes a top open shell 1, and also includes a detachable storage box 3 arranged in the shell 1, and the storage box 3 is arranged above the shell 1. The bottom of the storage box 3 is connected to a feed pipe 4, and the bottom of the storage box 3 is in a structure that is inclined and gathered into the feed pipe 4, so that the materials can be gathered into the feed pipe 4 conveniently. A storage pipe 5 is arranged below the feed pipe 4, and a discharge pipe 6 is arranged below the storage pipe 5. The bottom of the discharge pipe 6 penetrates and extends to the outer bottom of the shell 1. It should be noted that the center points of the feed pipe 4, the storage pipe 5 and the discharge pipe 6 are all on the same vertical axis, and the three pipes of the feed pipe 4, the storage pipe 5 and the discharge pipe 6 can only have the same diameter or the diameter increases step by step from top to bottom. The same diameter of the three pipes can prevent the material from falling from the gap of the pipe to a certain extent. When the pipe increases step by step downward, the pipe with a larger diameter below can be connected to the material falling from the gap between the upper pipes. Both methods can prevent the material from leaking to a certain extent. In order to fix the position of the feed pipe 4, the storage pipe 5 and the discharge pipe 6, a plurality of groups of connecting plates 19 are fixedly connected in the shell 1. The connecting plates 19 are respectively connected to the feed pipe 4, the storage pipe 5 and the discharge pipe 6. The fixed connection method can be argon arc welding.

[0036] A rotating motor 9 is also provided in the housing 1. The rotating motor 9 is fixed to the bottom of the housing 1. The output shaft of the rotating motor 9 is connected to a threaded rod 10. The threaded rod 10 is connected to a first sealing disk 11 and a second sealing disk 12 which are distributed up and down. When the rotating motor 9 is running, the threaded rod 10 and the two groups of sealing disks on the threaded rod 10 can be driven to rotate. The bottom of the threaded rod 10 is transmission-connected to the rotating motor 9, and its force-bearing part is at the bottom. Long-term use may cause the threaded rod 10 to shake more during rotation. Therefore, a bearing 17 is provided, and the inner ring of the bearing 17 is fixedly connected to the top of the threaded rod 10, and the outer ring of the bearing 17 is fixedly connected to a support plate 18. The other end of the support plate 18 is fixed inside the housing 1, and can be fixed by welding or other means.

[0037] A first rubber tube 7 is detachably connected below the discharge tube 4; a second rubber tube 8 is detachably connected above the storage tube 5; in this embodiment, both the first rubber tube 7 and the second rubber tube 8 are made of hard rubber, and the detachable connection can be fixed by a clamp. Wedge-shaped closing blocks 15 are respectively connected to the bottom of the first rubber tube 7 and the top of the second rubber tube 8. The wedge-shaped closing blocks 15 are made of hard rubber. The two groups of wedge-shaped closing blocks 15 are in contact with each other, so that the material in the first rubber tube 7 can flow completely into the second rubber tube 8. Among them, the first blocking disk 11 is used to intermittently block the gap between the first rubber tube 7 and the second rubber tube 8, and the second blocking disk 12 is used to intermittently block the gap between the storage tube 5 and the discharge tube 6. When the rotating motor 9 drives the threaded rod 10 to rotate, the first blocking disk 11 and the second blocking disk 12 can cooperate to intermittently feed, and at any time, only one of the first blocking disk 11 or the second blocking disk 12 is allowed to be in a blocked state.

[0038] In actual use, the initial state is that the second blocking disk 12 is located between the storage tube 5 and the discharge tube 6, and the first rubber tube 7 and the second rubber tube 8 are in a flow state. At this time, the material in the storage box 3 flows downward, and the material is blocked by the second blocking disk 12 so that it is all gathered between the discharge tube 4 and the storage tube 5, wherein the material inside the storage tube 5 and the second rubber tube 8 is the amount of this discharge. When the rotating motor 9 drives the threaded rod 10 to rotate, the threaded rod 10 drives the two sets of blocking disks to rotate, and the second blocking disk 12 is moved out during the rotation process, and the first blocking disk 11 blocks the bottom of the first rubber tube 7. At this time, the material inside the storage tube 5 and the second rubber tube 8 flows out through the discharge tube 6 below, and the material in the storage box 3 cannot continue to flow downward through the obstruction of the first blocking disk 11. The rotating motor 9 continues to drive the threaded rod 10 to rotate and repeat the above action, so that the material is fed in small quantities and in large quantities, and the amount of each discharge can also be controlled, which effectively improves the mixing quality and mixing efficiency of the flame retardant raw materials.

[0039] In this embodiment, the first blocking disk 11 and the second blocking disk 12 have the same structure, both comprising a disk 13 connected to the threaded rod 10, and the side wall of the disk 13 is connected to a semicircular ring plate 14, wherein the two semicircular ring plates 14 in the first blocking disk 11 and the second blocking disk 12 are mirror-set and are respectively located at the side walls of the disk 13 at two different heights. The semicircular ring plate 14 is more convenient to block the gap between the two rubber cylinders and the storage pipe 5 and the discharge pipe 6, so that they can be alternately blocked to achieve the purpose of controlling the amount of material fed.

[0040] At the same time, in this scheme, the amount of material loaded can be controlled, and the material amount can be adjusted by adjusting the height of the gap between the two groups of rubber tubes. For example, the first rubber tube 7 and the second rubber tube 8 are moved upward synchronously. At this time, the amount of material that can be accommodated between the storage tube 5 and the second rubber tube 8 increases, so the amount of material can be controlled, and it is convenient to select the amount of material loaded each time according to the actual processing situation. For the convenience of coordination, when the two groups of rubber tubes are adjusted, the position of the plugging disk adapted thereto should also be adjusted to a certain degree of height with it. During the adjustment process, the height of the gap between the storage tube 5 and the storage tube 5 is unchanged, so the second plugging disk 12 is fixedly connected to the threaded rod 10, and the second plugging disk 12 can be fixed on the threaded rod 10 by welding or the like. The first plugging disk 11 freely passes through the threaded column, and the upper and lower sides of the first plugging disk 11 are respectively provided with positioning nuts 16, and the positioning nuts 16 are threadedly connected with the threaded rod 10 to realize the positioning of the plugging disk.

[0041] An opening and closing door 2 is provided on the side wall of the shell 1, through which the height of the two groups of rubber tubes and the first sealing disk 11 can be adjusted conveniently, so that the amount of material to be loaded can be set according to actual conditions.

[0042] The working principle of this device is:

[0043] Several devices are pre-installed above the mixing machine to be processed, and the discharge pipe 6 in the device is connected to the mixing chamber in the mixing machine.

[0044] Pour the materials to be mixed into the storage box 3; at this time, the status of the two sets of blocking disks is Figure 2 As shown, the second blocking disk 12 is in a blocking state, and the material in the storage box 3 flows downward to fill between the discharge pipe 4 and the storage pipe 5. Since the two wedge-shaped closing blocks 15 are in contact with each other to prevent the leakage of the material, the rotating motor 9 is started, and the rotating motor 9 drives the two groups of blocking disks to rotate synchronously, and the second blocking disk 12 is turned away from the discharge pipe 6, so that the material inside the storage pipe 5 and the second rubber tube 8 enters the mixing machine through the discharge pipe 6. At the same time, the first blocking disk 11 is rotated and inserted between the first rubber tube 7 and the second rubber tube 8 to block the material above it. In this process, the rated material inside the storage pipe 5 and the second rubber tube 8 can enter the mixing machine, realizing quantitative feeding. The rotating motor 9 continues to rotate to drive the two groups of blocking disks to rotate, and the above steps are repeated to achieve intermittent quantitative feeding of materials, thereby improving the mixing quality and mixing efficiency.

[0045] When the amount of material to be fed needs to be adjusted, the opening and closing door 2 on the side wall of the housing 1 can be opened to adjust the two sets of rubber tubes and move them up synchronously; at the same time, the height of the first blocking disk 11 can be adjusted by screwing the positioning nut 16 so that it can cut into the space between the two adjusted sets of rubber tubes when rotating. In this way, the amount of material that can be stored in the storage tube 5 and the second rubber tube 8 can be increased or decreased to achieve the adjustment of the amount of material to be fed.

[0046] Embodiment 2

[0047] like Figure 1-Figure 2 As shown, this embodiment proposes a flame retardant production feeding device, and other structures are the same as those of the first embodiment.

[0048] Flame retardants are generally composite products. The best flame retardant effect can be achieved by compounding red phosphorus with inorganic flame retardants such as aluminum hydroxide and expanded graphite. During the feeding process, the material in the storage box 3 falls freely into the feeding pipe 4. The above materials have different shapes such as powder, microcapsule or granular. There may be large gaps between the materials during free fall feeding. Therefore, in this embodiment, a component that can be pressed down is designed to compact the materials and reduce the gaps between the materials, so that the feeding amount of the materials is more accurate.

[0049] The pressing component includes a bridge plate 20 connected to the top of the material box. The bridge plate 20 is L-shaped. The top surface of the bridge plate 20 is connected to an electric telescopic rod 21. The output end of the electric telescopic rod 21 freely passes through the bridge plate 20 and is connected to a piston 22. The piston 22 moves up and down in the material storage box 3, the feeding pipe 4 and the first rubber cylinder 7. The piston 22 is a truncated cone structure. When the second blocking disk 12 is in a blocking state, the electric telescopic rod 21 drives the piston 22 to further compact the material, and then rises after pressing down to prevent the electric telescopic rod 21 from interfering with the operation of the first blocking disk 11 or the second blocking disk 12. At the same time, after the loading is completed, the inside of the pipeline can be further cleaned by the piston 22 to prevent mixing with the previous material to a certain extent. The piston 22 is designed as a truncated cone structure to prevent the material from accumulating above the piston 22 during the pressing process.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A flame retardant production feeding device, comprising a shell with an open top, and a side wall of the shell is provided with an opening and closing door, characterized in that : It also includes a material storage box detachably arranged in the shell, the bottom of the material storage box is connected to a feed pipe, a material storage pipe is arranged below the feed pipe, and a discharge pipe is arranged below the material storage pipe, and the bottom of the discharge pipe passes through the shell and extends outside the shell; the center points of the feed pipe, the material storage pipe and the discharge pipe are on the same axis; a first rubber tube is detachably connected below the feed pipe, and a second rubber tube is detachably connected above the material storage pipe; A rotating motor is also arranged in the housing, and a threaded rod is connected to the output shaft of the rotating motor, and a first blocking disk and a second blocking disk are connected to the threaded rod, which are distributed up and down; the first blocking disk is used to temporarily block the gap between the first rubber tube and the second rubber tube, and the second blocking disk is used to temporarily block the gap between the storage pipe and the discharge pipe; When the rotating motor drives the threaded rod to rotate, the first sealing disk and the second sealing disk can cooperate to intermittently feed the material.

2. A flame retardant production feeding device according to claim 1, characterized in that: The first blocking plate has the same structure as the second blocking plate, and both include a circular plate connected to a threaded rod, and a semicircular ring plate is connected to the side wall of the circular plate; The two semicircular ring plates in the first sealing disk and the second sealing disk are arranged in a mirror image and are respectively located on the side walls of the disks at two different heights.

3. A flame retardant production feeding device according to claim 1, characterized in that: The bottom of the first rubber tube and the top of the second rubber tube are respectively connected with wedge-shaped closing blocks, and the two wedge-shaped closing blocks are abutted against each other.

4. A flame retardant production feeding device according to claim 1, characterized in that: The second sealing disk is fixedly connected to the threaded rod; The first sealing disk freely passes through the threaded column, and positioning nuts are respectively arranged on the upper and lower sides of the first sealing disk. The positioning nuts are threadedly connected with the threaded rod to realize the positioning of the first sealing disk.

5. A flame retardant production feeding device according to claim 1, characterized in that: It also includes a bearing, the inner ring of the bearing is fixedly connected to the threaded rod, the outer ring of the bearing is fixedly connected to a support plate, and the other end of the support plate is fixed to the inner wall of the shell.

6. A flame retardant production feeding device according to claim 1, characterized in that: A plurality of connection plates are fixedly connected in the shell body, and the connection plates are respectively connected with the feeding pipe, the storage pipe and the discharging pipe.

7. A flame retardant production feeding device according to claim 1, characterized in that: A bridge plate is connected to the top of the material storage box, and the bridge plate is L-shaped. An electric telescopic rod is connected to the top surface of the bridge plate. The output end of the electric telescopic rod freely passes through the bridge plate and is connected to a piston. The piston moves up and down in the material storage box and the discharge pipe.

8. A flame retardant production feeding device according to claim 7, characterized in that: The piston is a truncated cone structure.

9. A flame retardant production feeding device according to claim 1, characterized in that: The bottom of the material storage box is in a structure that is inclined and gathered toward the lower material pipe.

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