Brush bristles capable of preventing breakage and material sticking and production method

Abstract

The invention provides anti-breaking and anti-sticking brush bristles which comprise polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP and nanoscale silver powder, the polytetrafluoroethylene PTFE is used for improving the anti-sticking performance of the bristles, the polyimide PI is used for providing a self-lubricating function, and the nanoscale silver powder is used for providing the anti-sticking performance of the bristles. Polyetherimide PEI is used for improving the bending resistance, polybutylene terephthalate PBT, high-density polyethylene HDPE and polypropylene PP are used for improving the toughness, nano-scale silver powder is used for improving the antibacterial performance, the produced brush hair can effectively prevent sticking, has higher wear resistance, relieves the powder falling problem in the use process, is higher in toughness, and can be used for manufacturing the brush hair. The arc-shaped brush can replace traditional brush bristles made of PE, PP, PBT and PA materials in an existing workshop, it is ensured that the bristles on the arc-shaped face cannot be too long through the cutting device, and the probability that powder is generated in the follow-up friction using process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of brush production and processing, in particular to a brush bristle with an anti-breaking and anti-sticking material and a production method. Background Art

[0002] There are many types of material conveying equipment in the tobacco production and processing industry, typically belt conveyors, lifting feeders, storage cabinets, material distribution vehicles, distribution cranes, and nozzle rolling and splicing machines. These devices use a variety of brush structures in the material conveying process to clean the conveyed materials through the brushes. Furthermore, it is also necessary to divert and discharge the moisture accumulated on the surface after conveying materials with higher moisture content.

[0003] The bristles of brushes in the prior art are mostly made of single-component materials such as PE, PP, PBT, and PA. After long-term use, the cleaned tobacco materials will be stuck between the bristles of the brush, causing mold to form in the future. It is also easy to breed bacteria or tobacco beetles, making the brush itself a source of pollution, thereby polluting the subsequent tobacco production process. On the other hand, during the brushing process of conventional brushes, the bristles will wear out due to friction, and the worn plastic powder will be directly mixed into the tobacco materials, thereby reducing the quality of the finished tobacco products. After the roller brush is produced, the above problems will be further aggravated due to the difference in the length of the bristles. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a brush bristle with anti-breakage and anti-sticking material and a production method to solve the problems raised in the above background technology. The present invention can effectively prevent sticking, has stronger wear resistance, reduces the problem of powder falling during use, has higher toughness, and can replace the traditional PE, PP, PBT, PA and other brush bristle materials in existing workshops. A cutting device is used to cut the bristles on the surface of the columnar brush. The cutting process is simple and efficient, and can ensure that the bristles on the curved surface will not have too long parts, thereby further reducing the probability of powder generation during subsequent friction.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a brush bristle with anti-breakage and anti-sticking material, the plastic masterbatch used in the brush bristle includes polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP, and nano-scale silver powder, the polytetrafluoroethylene PTFE is used to improve the anti-sticking performance of the bristles, the polyimide PI is used to provide a self-lubricating function, the polyetherimide PEI is used to improve the bending resistance of the bristles, the polybutylene terephthalate PBT, high-density polyethylene HDPE, and polypropylene PP are used to improve the toughness of the bristles, and the nano-scale silver powder is used to improve the antibacterial performance of the bristles.

[0006] Furthermore, the proportions of the components of the plastic masterbatch used in the bristles are as follows: polytetrafluoroethylene PTFE 15%, polyimide PI 20%, polyetherimide PEI 15%, polybutylene terephthalate PBT 5%, high-density polyethylene HDPE 25%, polypropylene PP 18%, and nano-grade silver powder 2%.

[0007] Furthermore, the brush includes bristles and a scraping strip part, wherein the bristles are used to clean residual materials on the belt surface, and the scraping strip is used to remove residual water from the belt surface, and the bristle part is planted on the surface of the cylinder using an automatic planting machine; the scraping strip is made of polyurethane and embedded into the surface of the cylinder using an adhesive, and the components of the adhesive include chlorinated polyethylene CPE or chlorinated polypropylene CPP, wherein the material of the cylinder is PP material, and the brush is formed into a roller brush by planting bristles and adhering the scraping strip after grooving on the cylinder, and the roller brush is used to simultaneously clean the surface of the conveyor belt and remove water.

[0008] A method for producing the bristles of the brush as described above comprises the following steps:

[0009] Step 1: Prepare materials, prepare a variety of different plastic masterbatch raw materials for use;

[0010] Step 2, drying the polymer masterbatch in a dryer and then mixing the mixture;

[0011] Step 3: Use a screw extruder to extrude and cool down the material;

[0012] Step 4: heating, then stretching the material into shape, drying and winding;

[0013] Step 5: Use a hair planting machine to plant bristles on the cylinder, use turning to groove the cylinder, and then use an adhesive to adhere the scraper strip to the groove;

[0014] Step 6: Place the processed brush and barrel into the cutting device, and clamp and lock the two ends of the barrel on the brush;

[0015] Step 7: Start the electric telescopic rod to cut the bristles on the surface of the brush until the excessively long parts are removed.

[0016] Furthermore, the plastic masterbatch in step 1 includes polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP, and nano-scale silver powder.

[0017] Furthermore, in the step three, the material is placed in a cold water cooling box for cooling, and in the step four, hot water is injected into a heating box to increase the temperature of the material. The stretching forming is completed using a drawing machine, and the number of the drawing machines is three groups.

[0018] Furthermore, in step six, the brush part is placed in the middle position of the inner sleeve, and then the top plate is rotated around a rotating mechanism at one end to cover the top of the cylinder, and the top clamping plate is controlled to move downward by turning the hand wheel until downward pressure is applied to the top of the cylinder. This process is achieved by pressing the bottom of the cylinder on the bottom clamping plate, and the bottom clamping plate applies an upward supporting force through the inner spring rod to clamp and fix the cylinder.

[0019] Furthermore, in the process of turning the hand wheel to clamp the cylinder, the central axis of the entire brush is manually controlled to coincide with the central axis of the top clamping plate and the bottom clamping plate, and the rotation position of the top is limited by the top limit lever, so that the top plate and the bottom plate remain in a horizontal state.

[0020] Furthermore, in the step seven, after the brush is fixed to the inside of the inner sleeve, the transmission mechanism at the bottom and the cutting assembly at the top are started, and the toothed belt on the side is driven to rotate by the motor in the transmission mechanism. After the toothed belt is engaged with the gear, the plug-in column and the outer sleeve and the inner sleeve at the top are rotated synchronously with the help of the gear. During this process, the internal bristles will pass out from the through hole in the inner sleeve.

[0021] Furthermore, after starting the electric telescopic rod, the annular cutter at the end is controlled to rise and fall, and the inner side of the annular cutter directly fits against the surface of the inner sleeve. As the inner sleeve rotates, some of the excessively long bristles directly pass out from the inside of the through hole, and the protruding part is cut off by the rising and falling annular cutter, so as to control the overall length of the bristles to remain consistent.

[0022] Beneficial effects of the present invention:

[0023] 1. The brush bristles of the anti-breakage and anti-sticking material have improved anti-sticking performance, stronger wear resistance, reduced the problem of powder falling during use, higher toughness, and can replace the traditional brush bristles PE, PP, PBT, PA materials in existing workshops.

[0024] 2. In the production method provided by the present invention, grooves are made on the surface of the cylinder, and then the scraper strips are embedded into the grooves through an adhesive, thereby improving the firmness after insertion. By means of the roller brush with a composite structure of polyurethane scraper strips and new material bristles, the surface of the belt conveyor with a high moisture content of the material can be cleaned and the moisture can be discharged.

[0025] 3. In the production method of the brush bristles of the anti-breakage and anti-sticking material, a cutting device is used to cut the bristles on the surface of the columnar brush. The cutting process is simple and efficient, and can ensure that there will be no overly long parts of the bristles on the curved surface, thereby further reducing the probability of generating powder during subsequent friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of a method for producing brush bristles of an anti-breaking and anti-sticking material according to the present invention;

[0027] Figure 2 It is a partial structural diagram of a cutting device used in a method for producing a brush of an anti-breaking and anti-sticking material according to the present invention;

[0028] Figure 3 It is a schematic structural diagram of the cutting component part of the present invention;

[0029] Figure 4 It is a schematic structural diagram of the transmission mechanism part of the cutting device of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of the inner sleeve of the present invention;

[0031] Figure 6 It is a side cross-sectional view of a brush for preventing the breaking and anti-sticking material of the present invention after the bristles and the barrel are installed;

[0032] Figure 7 A structural diagram of a roller brush in a brush provided by the present invention;

[0033] In the figure: 1. top plate; 2. bottom plate; 3. rotating mechanism; 4. limit stop rod; 5. outer sleeve; 6. transmission mechanism; 7. cutting assembly; 8. electric telescopic rod; 9. extension plate; 10. lifting rod; 11. fixing ring; 12. circular cutter; 13. hand; 14. top clamping plate; 15. inner sleeve; 16. through hole; 17. motor; 18. toothed belt; 19. plug-in column; 20. gear; 21. support bearing; 22. slot; 23. column; 24. spring rod; 25. bottom clamping plate; 26. cylinder; 27. bristles; 28. scraper. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] See also Figures 1 to 7The present invention provides the following technical solutions: a brush bristle with an anti-breakage and anti-sticking material, wherein the plastic masterbatch used in the brush bristle includes polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP, and nano-scale silver powder, wherein the polytetrafluoroethylene PTFE is used to improve the anti-sticking performance of the bristles 27, the polyimide PI is used to provide a self-lubricating function, the polyetherimide PEI is used to improve the bending resistance of the bristles 27, the polybutylene terephthalate PBT, high-density polyethylene HDPE, and polypropylene PP are used to improve the toughness of the bristles 27, and the nano-scale silver powder is used to improve the antibacterial performance of the bristles 27.

[0036] In this embodiment, the proportions of the components of the plastic masterbatch used in the bristles are as follows: polytetrafluoroethylene PTFE 15%, polyimide PI 20%, polyetherimide PEI 15%, polybutylene terephthalate PBT 5%, high-density polyethylene HDPE 25%, polypropylene PP 18%, and nano-grade silver powder 2%.

[0037] The bristles prepared by the above ingredients were subjected to oleophobic and anti-sticking tests, and the final test results are shown in the following table:

[0038] Table 1 Oleophobic anti-sticking test results

[0039]

[0040] It can be seen from the above table that when the PTFE mass ratio is 15%, the oleophobic and anti-stick properties of the composite surface are higher.

[0041] In this embodiment, the brush includes bristles 27 and scraping strips 28, wherein the bristles 27 are used to clean residual materials on the belt surface, and the scraping strips 28 are used to remove residual water from the belt surface, and the bristles 27 are planted on the surface of the cylinder using an automatic planting machine; the scraping strips 28 are made of polyurethane and embedded into the surface of the cylinder using an adhesive, and the components of the adhesive include chlorinated polyethylene CPE or chlorinated polypropylene CPP, wherein the cylinder 26 is made of PP material, and the brush is formed into a roller brush by planting bristles 27 and grooving the cylinder 26 and adhering the scraping strips 28 thereon, and the roller brush is used to simultaneously clean the surface of the conveyor belt and remove water.

[0042] The bristles prepared with the above ingredients were subjected to tensile performance tests, and the final test results are shown in the following table.

[0043] Table 2 Test results of tensile properties of bristles

[0044] Test items Tensile Strength Tensile Strength 40.7MPa Tensile strain at break 165.63％ Nominal strain at fracture 133.42％

[0045] It can be seen from the above table that the bristles of the brush prepared in the present application have a higher tensile strength.

[0046] This embodiment also provides a method for producing the bristles of the brush as described above, comprising the following steps:

[0047] Step 1: Prepare materials, prepare a variety of different plastic masterbatch raw materials for use;

[0048] Step 2, drying the polymer masterbatch in a dryer and then mixing the mixture;

[0049] Step 3: Use a screw extruder to extrude and cool down the material;

[0050] Step 4: heating, then stretching the material into shape, drying and winding;

[0051] Step 5: Use a hair planting machine to plant bristles on the cylinder 26, use turning to groove the cylinder, and then use an adhesive to adhere the scraper 28 into the groove;

[0052] Step 6: Place the processed brush and the cylinder 26 into the cutting device, and clamp and lock the two ends of the cylinder 26 on the brush;

[0053] Step 7: Start the electric telescopic rod 8 to cut the bristles 27 on the surface of the brush until the excessively long parts are removed.

[0054] In this embodiment, the plastic masterbatch in step 1 includes polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP, and nano-grade silver powder. In step 3, the material is placed in a cold water cooling box for cooling. In step 4, hot water is injected into a heating box to increase the temperature of the material. The stretching molding is completed using a drawing machine, and the number of the drawing machines is three.

[0055] In this embodiment, in step six, a top clamp plate 14 and a bottom clamp plate 25 are used, the bottom end of the bottom clamp plate 25 is welded to the bottom plate 2, and a clamping groove 22 is integrally formed on the surface of the bottom plate 2, the bottom clamp plate 25 is a hollow structure as a whole, and a spring rod 24 is inserted into the inner side of the bottom clamp plate 25, and the bottom of the spring rod 24 is welded to the column 23, a hand wheel is integrally formed on the top of the top clamp plate 14, and an external thread structure is provided on the surface of the top clamp plate 14, and the top clamp plate 14 passes through the threaded hole opened on the surface of the top plate 1 through the thread on the surface.

[0056] Place the brush part in the middle of the inner sleeve 15, then rotate the top plate 1 around one end of the rotating mechanism 3 to cover the top of the cylinder 26, and control the top clamping plate 14 to move down by turning the hand wheel until the top of the cylinder 26 is subjected to downward pressure. This process is performed by pressing the bottom of the cylinder 26 on the bottom clamping plate 25, and the bottom clamping plate 25 applies an upward supporting force through the inner spring rod 24 to clamp and fix the cylinder 26. In the process of turning the hand wheel to clamp the cylinder 26, manually control the central axis of the entire brush to coincide with the central axis of the top clamping plate 14 and the bottom clamping plate 25, and limit the rotation position of the top through the top limit stopper 4, so that the top plate 1 and the bottom plate 2 remain in a horizontal state.

[0057] In this embodiment, in step seven, a plug-in column 19 is welded at the bottom of the outer sleeve 5, and a support bearing 21 is sleeved on the bottom of the plug-in column 19. The support bearing 21 is integrally embedded in the interior of the slot 22, and the bottom end of the inner wall of the outer sleeve 5 is welded as a whole with the bottom of the inner sleeve 15. A gear 20 is keyed to the surface of the plug-in column 19, and the gear 20 is meshed with the toothed belt 18. The output shaft of the motor 17 is also keyed to the gear 20, and the toothed belt 18 is driven to rotate by the gear 20 on the drive shaft. A plurality of through holes 16 are provided on the surface of the inner sleeve 15, and a lifting rod 10 is inserted on the surface of the top plate 1. An extension plate 9 is integrally formed on the top of the lifting rod 10, and an electric telescopic rod 8 is screwed to the bottom of the extension plate 9. The bottom end of the electric telescopic rod 8 is screwed to the surface of the top plate 1, and the bottom of the lifting rod 10 is fixed by a fixing ring 11 in combination with a plurality of annular cutters 12.

[0058] After fixing the brush inside the inner sleeve 15, start the transmission mechanism 6 at the bottom and the cutting assembly 7 at the top. The transmission mechanism 6 drives the toothed belt 18 on the side to rotate through the motor 17. After the toothed belt 18 is meshed with the gear 20, the plug-in column 19 and the outer sleeve 5 and the inner sleeve 15 at the top are rotated synchronously with the help of the gear 20. During this process, the internal bristles 27 will pass out from the through hole 16 in the inner sleeve 15. After starting the electric telescopic rod 8, the annular cutter 12 at the end is controlled to move up and down. The inner side of the annular cutter 12 directly fits the surface of the inner sleeve 15. As the inner sleeve 15 rotates, some of the overlong bristles 27 directly pass out from the inside of the through hole 16. The part that passes out is cut off by the lifting annular cutter 12 to control the overall length of the bristles to remain consistent.

[0059] In the production method of the bristles, a cutting device is used to cut the bristles on the surface of the columnar brush. The cutting process is simple and efficient, and can ensure that there are no overly long parts of the bristles on the curved surface, thereby further reducing the probability of generating powder during subsequent use and friction.

[0060] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A brush bristle for preventing the bristles of an anti-sticking material from breaking, characterized in that: The plastic masterbatch used for the bristles of the brush includes polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP, and nano-scale silver powder. The polytetrafluoroethylene PTFE is used to improve the anti-sticking performance of the bristles, the polyimide PI is used to provide a self-lubricating function, the polyetherimide PEI is used to improve the bending resistance of the bristles, the polybutylene terephthalate PBT, high-density polyethylene HDPE, and polypropylene PP are used to improve the toughness of the bristles, and the nano-scale silver powder is used to improve the antibacterial performance of the bristles.

2. The brush bristles of the anti-breaking anti-sticking material according to claim 1, characterized in that: The plastic masterbatch used in the bristles has the following components in proportions: 15% polytetrafluoroethylene PTFE, 20% polyimide PI, 15% polyetherimide PEI, 5% polybutylene terephthalate PBT, 25% high-density polyethylene HDPE, 18% polypropylene PP, and 2% nano-grade silver powder.

3. The brush bristles for preventing the anti-breaking anti-sticking material according to claim 1, characterized in that: The brush comprises bristles and a scraping strip, wherein the bristles are used to clean residual materials on the belt surface, and the scraping strip is used to remove residual water from the belt surface, and the bristle part is planted on the surface of the cylinder using an automatic planting machine; the scraping strip is made of polyurethane and embedded into the surface of the cylinder using an adhesive, and the adhesive comprises chlorinated polyethylene CPE or chlorinated polypropylene CPP, wherein the cylinder is made of PP material, and the brush is formed into a roller brush by planting bristles and grooving the cylinder and adhering the scraping strip, and the roller brush is used to simultaneously clean the surface of the conveyor belt and remove water.

4. A method for producing brush bristles as claimed in claim 1, characterized in that: The following steps are involved: Step 1: Prepare materials, prepare a variety of different plastic masterbatch raw materials for use; Step 2, drying the polymer masterbatch in a dryer and then mixing the mixture; Step 3: Use a screw extruder to extrude and cool down the material; Step 4: heating, then stretching the material into shape, drying and winding; Step 5: Use a hair planting machine to plant bristles on the cylinder, use turning to groove the cylinder, and then use an adhesive to adhere the scraper strip to the groove; Step 6: Place the processed brush and barrel into the cutting device, and clamp and lock the two ends of the barrel on the brush; Step 7: Start the electric telescopic rod to cut the bristles on the surface of the brush until the excessively long parts are removed.

5. The production method according to claim 4, characterized in that: The plastic masterbatch in the step 1 includes polytetrafluoroethylene PTFE, polyimide PI, polyetherimide PEI, polybutylene terephthalate PBT, high-density polyethylene HDPE, polypropylene PP, and nano-scale silver powder.

6. The production method according to claim 4, characterized in that: In the step three, the material is placed in a cold water cooling box for cooling. In the step four, hot water is injected into a heating box to increase the temperature of the material. The stretching forming is completed using a drawing machine, and the number of the drawing machines is three groups.

7. The production method according to claim 4, characterized in that: In step six, the brush part is placed in the middle position of the inner sleeve, and then the top plate is rotated around the rotating mechanism at one end to cover the top of the cylinder. The top clamping plate is controlled to move downward by turning the hand wheel until downward pressure is applied to the top of the cylinder. This process is achieved by pressing the bottom of the cylinder on the bottom clamping plate, and the bottom clamping plate applies an upward supporting force through the inner spring rod to clamp and fix the cylinder.

8. The production method according to claim 7, characterized in that: In the process of turning the hand wheel to clamp the cylinder, the central axis of the entire brush is manually controlled to coincide with the central axis of the top clamping plate and the bottom clamping plate, and the rotation position of the top is limited by the top limit lever to keep the top plate and the bottom plate in a horizontal state.

9. The production method according to claim 7, characterized in that: In the step seven, after the brush is fixed to the inside of the inner sleeve, the transmission mechanism at the bottom and the cutting assembly at the top are started. The motor in the transmission mechanism drives the toothed belt on the side to rotate. After the toothed belt engages with the gear, the gear is used to rotate the plug-in column and the outer sleeve and inner sleeve at the top synchronously. During this process, the internal bristles will pass out from the through hole in the inner sleeve.

10. The production method according to claim 9, characterized in that: After starting the electric telescopic rod, the annular cutter at the end is controlled to rise and fall. The inner side of the annular cutter directly fits with the surface of the inner sleeve. As the inner sleeve rotates, some of the excessively long bristles directly pass out from the inside of the through hole. The protruding part is cut off by the rising and falling annular cutter to control the overall length of the bristles to remain consistent.

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