Raw material proportioning and mixing device for high-flame-retardant wrapping tape production

Abstract

The utility model discloses a raw material proportioning and mixing device for producing a high-flame-retardant wrapping tape, which relates to the field of mixing devices and comprises a mixing barrel and a mixing motor fixedly arranged at one end of the mixing barrel, a mixing rod is rotatably arranged on the inner side of the mixing barrel, and a plurality of mixing blades for mixing raw materials are arranged on the outer side of the mixing rod. The mixing blades are arranged in an arc shape, the ends, away from the mixing rod, of the mixing blades make contact with the inner wall of the mixing barrel, and material passing holes are formed in the surfaces of the mixing blades in a penetrating mode. The raw materials are additionally driven to roll when being mixed through rotation of the stirring blades and rotation of the mixing blades, the mixing efficiency is improved, the raw materials can be scattered in batches and the mixing effect is improved when the materials are mixed through the mixing sieve holes which are gradually enlarged, and the materials pass through the material passing holes.

Description

Technical Field

[0001] The utility model relates to the field of mixing devices, in particular to a raw material proportioning mixing device for producing high flame retardant tapes. Background Art

[0002] The raw materials of highly flame-retardant tapes mainly include non-woven fabrics, elastomer resins, silica, alumina, high-aluminum powder, sodium tripolyphosphate, organic fibers, masterbatches, titanium dioxide, etc. In addition, according to specific application scenarios and performance requirements, other materials can also be used to enhance flame retardancy, such as glass fiber, ceramic fiber, silicone rubber, graphite, etc. During the production of highly flame-retardant tapes, the raw materials need to be mixed according to the proportion, and tumbling dynamic mixing is generally used;

[0003] However, the existing mixing devices generally use motors, stirring shafts and mixing blades to mix the materials, and the mixing degree of the materials in the upper layer and the lower layer is different, which greatly prolongs the mixing time of the materials.

[0004] Therefore, it is necessary to propose a raw material ratio mixing device for producing high flame retardant tape to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a raw material proportioning and mixing device for producing highly flame-retardant tapes, so as to solve the problem that the mixing degrees of the materials in the upper layer and the lower layer are different, which leads to a greatly prolonged mixing time of the materials.

[0006] To achieve the above object, the utility model provides the following technical solutions: a raw material proportioning and mixing device for producing highly flame-retardant tape, comprising a mixing barrel and a mixing motor fixedly arranged at one end of the mixing barrel, a mixing rod rotatably arranged inside the mixing barrel, and a plurality of mixing blades for mixing raw materials are arranged outside the mixing rod;

[0007] The mixing blade is arranged in an arc shape, and one end of the mixing blade away from the mixing rod contacts the inner wall of the mixing barrel. A feeding hole is penetrated through the surface of the mixing blade, and multiple rows of mixing screen holes are also penetrated through the surface of the mixing blade. The inner diameter of each row of the mixing screen holes is gradually increased toward the mixing rod.

[0008] Preferably, a material discharge chute is provided on the inner side of the mixing barrel, a baffle plate is fitted on the inner side of the material discharge chute, and the material discharge chute and the baffle plate have the same shape.

[0009] Preferably, a mixing bracket for supporting the mixing barrel is fixedly provided at the lower end, a hydraulic telescopic rod is also fixedly provided at the upper end of the mixing bracket, a double connecting plate is fixedly provided at one end of the output rod of the hydraulic telescopic rod, a bearing plate is fixedly provided at the lower end of the blocking plate, the double connecting plate is U-shaped, the ends of the double connecting plate are respectively fixedly connected to the blocking plate and the outer sides of the bearing plate, two balance rods are also fixedly provided at both ends of the double connecting plate, one end of the balance rod is fixedly connected to the outer side of the bearing plate.

[0010] Preferably, a feed gate is provided on the outside of the mixing barrel.

[0011] Preferably, one end of the balance bar corresponding to the bearing plate is located at the edge of the bearing plate.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The shape of the mixing blades can effectively drive the raw materials in the mixing barrel when mixing the raw materials. The arc-shaped setting and the rotation of the mixing blades can additionally drive the raw materials to roll when mixing, thereby improving the mixing efficiency. The mixing sieve holes are gradually enlarged, thereby breaking up the raw materials in batches when mixing the materials, thereby improving the mixing effect. The material passing holes can prevent the materials from being always between two adjacent mixing blades, thereby reducing the mixing time.

[0014] 2. By gradually enlarging the mixing sieve holes, when the raw materials are mixed, the raw materials first contact the larger mixing sieve holes to release most of the raw materials, and then release a small part of the raw materials by contacting the smaller mixing sieve holes, so as to change the speed of the material when it is dispersed through mixing sieve holes of different sizes, and prevent the same raw materials from being discharged at the same time through the larger mixing sieve holes, resulting in uneven mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the structure of a raw material proportioning and mixing device for producing a highly flame-retardant tape.

[0016] Figure 2 This is a schematic diagram of the internal structure of the mixing barrel of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the feeding chute of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the mixing blade of the utility model.

[0019] In the figure: 1. mixing barrel; 2. mixing bracket; 3. mixing motor; 4. mixing rod; 5. mixing blades; 6. mixing screen holes; 7. feeding holes; 8. feeding chute; 9. blocking plate; 10. bearing plate; 11. double connecting plate; 12. hydraulic telescopic rod; 13. balance rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] The utility model provides Figure 1 - Figure 4 A raw material proportioning and mixing device for producing a highly flame-retardant tape is shown, wherein when the raw materials for producing the highly flame-retardant tape are mixed, various formulas in the raw materials need to be proportioned to match them according to the required performance of the highly flame-retardant tape, and their weights are measured with an electronic scale, and the proportions of different types of raw materials are controlled according to the weight proportions;

[0022] It includes a mixing barrel 1 and a mixing motor 3 fixedly arranged at one end of the mixing barrel 1. The mixing motor 3 is an existing planetary reduction motor to ensure the kinetic energy of low speed to mix the raw materials. The planetary reduction motor is an existing common technology and will not be described in detail here. A feeding door is arranged on the outside of the mixing barrel 1 for adding raw materials. A feeding trough 8 is arranged on the inside of the mixing barrel 1. A baffle plate 9 is fitted on the inside of the feeding trough 8. The feeding trough 8 and the baffle plate 9 have the same shape. A mixing rod 4 is rotatably arranged on the inside of the mixing barrel 1. The mixing motor 3 drives the mixing rod 4 to rotate at a low speed. A plurality of mixing blades 5 for mixing raw materials are arranged on the outside of the mixing rod 4. The mixing blades 5 are arranged in an arc shape.

[0023] The end of the mixing blade 5 away from the mixing rod 4 contacts the inner wall of the mixing barrel 1, and a feeding hole 7 is formed on the surface of the mixing blade 5. The surface of the mixing blade 5 also has multiple rows of mixing screen holes 6, and the inner diameter of each row of mixing screen holes 6 gradually increases toward the mixing rod 4.

[0024] Before the production of the high flame retardant tape, its raw materials are mostly granular or powdery, such as non-woven fabrics, elastomeric resins, silica, alumina, high aluminum powder, sodium tripolyphosphate, organic fibers, masterbatches, titanium dioxide and other raw materials. Therefore, horizontal mixing can more effectively drive the granular raw materials to shake, increase their range of activity, and release the granular raw materials through the mixing sieve hole 6.

[0025] A mixing bracket 2 for supporting itself is fixedly provided at the lower end of the mixing barrel 1 to ensure the stability of the mixing barrel 1 during operation. A hydraulic telescopic rod 12 is also fixedly provided at the upper end of the mixing bracket 2. The hydraulic telescopic rod 12 is a prior art and will not be described in detail here. A double connecting plate 11 is fixedly provided at one end of the output rod of the hydraulic telescopic rod 12. The double connecting plate 11 is U-shaped, and a bearing plate 10 is fixedly provided at the lower end of the baffle plate 9. The ends of the double connecting plate 11 are respectively fixedly connected to the baffle plate 9 and the outer sides of the bearing plate 10. One end of the balance bar 13 corresponding to the bearing plate 10 is at the edge of the bearing plate 10. The double connecting plate 11 increases the effective contact area of ​​the baffle plate 9 through the bearing plate 10, and the balance bar 13 is used to increase the stability of the baffle plate 9 when it is telescoped. Because the baffle plate 9 requires a large force when contacting the discharge chute 8, the balance bar 13 is used to ensure that the force area of ​​the baffle plate 9 is large while ensuring its force balance.

[0026] Working principle: The operator uses an electronic scale to measure the weight of the raw materials used in the production of high flame retardant tapes, and then adds different raw materials from the feed door on the mixing barrel 1, and then turns on the mixing motor 3, so that the mixing motor 3 drives the mixing rod 4 to rotate, and then the mixing rod 4 drives multiple mixing blades 5 to rotate, and then the mixing blades 5 drive the raw materials. Through its arc setting and the rotation of the mixing blades 5, the raw materials are additionally driven to roll during mixing, thereby improving the mixing efficiency. The mixing blades 5 continue to rotate, so that the raw materials contact the mixing screen away from the mixing rod 4. Hole 6, so that part of the raw materials are dispersed first. When there are more raw materials in the mixing barrel 1, after the raw materials pass through the mixing sieve hole 6, if the raw materials still do not completely enter the next mixing blade 5, the remaining raw materials will enter the next mixing blade 5 through the feeding hole 7, and the raw materials will be finely dispersed through the mixing sieve hole 6. When the fine dispersion cannot disperse all the raw materials, they will be roughly dispersed through the feeding hole 7 to prevent the different raw materials from being incompletely dispersed. When all the raw materials pass through the mixing sieve hole 6 and the feeding hole 7, the mixing of the raw materials is completed, and they are thoroughly dispersed and then mixed, and the mixing efficiency is high.

[0027] When the mixing is completed, the hydraulic telescopic rod 12 is opened, so that the hydraulic telescopic rod 12 drives the double connecting plate 11, and then the double connecting plate 11 drives the supporting plate 10 and the blocking plate 9 to move in parallel, so that the blocking plate 9 is separated from the discharge chute 8, and the discharge chute 8 is quickly opened to accelerate the removal of the mixed raw materials, and the mixing blades 5 are used to push the raw materials out to accelerate the removal of the raw materials.

Claims

1. A raw material proportioning and mixing device for producing highly flame-retardant tape, comprising a mixing barrel (1) and a mixing motor (3) fixedly arranged at one end of the mixing barrel (1), characterized in that: A mixing rod (4) is rotatably provided inside the mixing barrel (1), and a plurality of mixing blades (5) for mixing raw materials are provided outside the mixing rod (4); The mixing blade (5) is arranged in an arc shape, and one end of the mixing blade (5) away from the mixing rod (4) contacts the inner wall of the mixing barrel (1). A feeding hole (7) is provided through the surface of the mixing blade (5). A plurality of rows of mixing sieve holes (6) are also provided through the surface of the mixing blade (5), and the inner diameter of each row of the mixing sieve holes (6) gradually increases toward the mixing rod (4).

2. A raw material proportioning and mixing device for producing highly flame-retardant tape according to claim 1, characterized in that: A material discharge chute (8) is provided on the inner side of the mixing barrel (1), and a baffle plate (9) is fitted on the inner side of the material discharge chute (8); the material discharge chute (8) and the baffle plate (9) have the same shape.

3. A raw material proportioning and mixing device for producing highly flame-retardant tape according to claim 2, characterized in that: A mixing bracket (2) for supporting the mixing barrel (1) is fixedly provided at the lower end thereof, a hydraulic telescopic rod (12) is also fixedly provided at the upper end of the mixing bracket (2), a double connecting plate (11) is fixedly provided at one end of the output rod of the hydraulic telescopic rod (12), a bearing plate (10) is fixedly provided at the lower end of the blocking plate (9), the double connecting plate (11) is arranged in a U shape, the ends of the double connecting plate (11) are respectively fixedly connected to the outer sides of the blocking plate (9) and the bearing plate (10), two balancing rods (13) are also fixedly provided at both ends of the double connecting plate (11), one end of the balancing rod (13) is fixedly connected to the outer side of the bearing plate (10).

4. A raw material proportioning and mixing device for producing highly flame-retardant tape according to claim 1, characterized in that: The outside of the mixing barrel (1) is provided with a feeding door.

5. A raw material proportioning and mixing device for producing highly flame-retardant tape according to claim 3, characterized in that: One end of the balance bar (13) corresponding to the bearing plate (10) is located at the edge of the bearing plate (10).

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