A polyanionic cellulose production grinder

Abstract

The invention relates to the technical field of grinding equipment, and in particular to a polyanionic cellulose production grinder, comprising a casing, a feeding channel is provided on the top of the casing, a feeding hopper is provided on the top of the feeding channel, a crushing mechanism is provided inside the feeding channel, a grinding bin is provided inside the casing, a plurality of sieve holes are provided at the bottom of the grinding bin, a dispersion mechanism is provided between the grinding bin and the feeding channel, the dispersion mechanism is used to disperse the preliminarily crushed polyanionic cellulose, a grinding roller is provided inside the grinding bin, a bracket is rotatably connected to the grinding roller, and a threaded rod is threadedly connected to the bracket; when the polyanionic cellulose is ground, the present invention disperses the polyanionic cellulose through a guide plate that swings back and forth relatively, so that the polyanionic cellulose falls evenly inside the grinding bin, and the grinding effect of the grinding roller on the polyanionic cellulose is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to a polyanionic cellulose production grinder. Background Art

[0002] Polyanionic cellulose is a water-soluble cellulose ether derivative obtained by chemically modifying natural cellulose. Polyanionic cellulose is a white to light yellow powder or granule. The mud fluid prepared with it has good water loss reduction, inhibition, and high temperature resistance. Polyanionic cellulose needs to be ground during the production process.

[0003] In the prior art, when grinding polyanionic cellulose, the polyanionic cellulose is mostly initially ground by a grinding mechanism, and the polyanionic cellulose falls into a grinding chamber after the grinding, and then the polyanionic cellulose is ground by the grinding mechanism inside the grinding chamber. However, this grinding device has certain defects. The polyanionic cellulose initially ground by the grinding mechanism tends to fall into a single position inside the grinding chamber, causing the polyanionic cellulose to accumulate inside the grinding chamber, which seriously affects the grinding effect of the grinding mechanism on the polyanionic cellulose. Summary of the invention

[0004] The object of the present invention is to provide a polyanionic cellulose production grinder to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A polyanionic cellulose production grinder comprises a casing, a feeding channel is provided on the top of the casing, a feeding hopper is provided on the top of the feeding channel, a pulverizing mechanism is provided inside the feeding channel, the pulverizing mechanism is used for preliminary pulverization of the polyanionic cellulose, a grinding bin is provided inside the casing, a plurality of sieve holes are provided at the bottom of the grinding bin, a dispersion mechanism is provided between the grinding bin and the feeding channel, the dispersion mechanism is used for dispersing the preliminary pulverized polyanionic cellulose, a grinding roller is provided inside the grinding bin, the grinding roller is rotatably connected to a bracket, the bracket is threadedly connected to a threaded rod, the threaded rod passes through the side wall of the casing and is connected to a rotating mechanism, the rotating mechanism is used for driving the threaded rod to rotate, the grinding bin is connected to a vibrating mechanism, the vibrating mechanism is used for driving the grinding bin to vibrate.

[0007] Preferably: the crushing mechanism includes crushing rollers arranged inside the feeding channel and symmetrically distributed, the ends of the crushing rollers penetrate the side walls of the feeding channel and are rotatably connected to the side walls of the feeding channel, one end of the crushing rollers is fixed with a first gear, the first gears are meshed, a first motor is installed on the side wall of the feeding channel, and the output end of the first motor is fixedly connected to one of the ends of the crushing rollers.

[0008] Preferably: the rotating mechanism includes a mounting plate fixed on the outer wall of the casing, a second motor is installed at the bottom of the mounting plate, the output end of the second motor is fixedly connected to one end of the threaded rod, a limiting rod is fixed inside the casing, the limiting rod passes through the bracket and is slidably connected to the bracket.

[0009] Preferably: the dispersion mechanism includes guide plates arranged above the grinding bin and symmetrically distributed, the ends of the guide plates away from each other are inclined downward, and the ends of the guide plates close to each other are fixed with rotating rods, which penetrate the side walls of the casing and are rotatably connected to the side walls of the casing, wherein the guide plates are connected to a swinging assembly, which is used to drive the two guide plates to swing relative to each other.

[0010] Preferably: the swing assembly includes a second gear fixed at the end of the rotating rod, a tooth plate is provided between the second gears, the tooth plate is meshed with the two second gears, a sliding rod is fixed at the bottom of the tooth plate, a guide plate is fixed on the side wall of the casing, the sliding rod passes through the guide plate and is slidably connected to the guide plate, a push plate is fixed at the bottom of the sliding rod, the push plate is connected to the guide plate through a first elastic component, and a push block for squeezing the push plate is fixed to the outside of the threaded rod.

[0011] Preferably, a baffle is provided directly above the guide plate, the baffle is arranged in an inverted "V" shape and is fixedly connected to the inner wall of the casing.

[0012] Preferably: the vibration mechanism includes a slideway which is arranged on the side wall of the casing and is symmetrically distributed, a slider which is symmetrically distributed is fixed on the side wall of the grinding chamber, the slider passes through the slideway and is slidably connected to the slideway, a push rod is fixed to the bottom of the slider, a limit plate is fixed on the outer wall of the casing, the slider is connected to the limit plate through a second elastic component, a symmetrically distributed rotating shaft is rotatably connected to the outer wall of the casing, the rotating shaft is transmission-connected to the threaded rod through a belt and a pulley, a turntable for squeezing the push rod is fixed to the outside of the rotating shaft, and a recessed portion is provided on the side wall of the turntable.

[0013] Compared with the prior art, the present invention has the following beneficial effects: when grinding polyanionic cellulose, the present invention disperses the polyanionic cellulose through the reciprocating relatively swinging guide plate, so that the polyanionic cellulose falls evenly inside the grinding bin, effectively improving the grinding effect of the grinding roller on the polyanionic cellulose. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The external structure of the housing in the embodiment of the present invention is shown in FIG. Figure 1 .

[0015] Figure 2 The external structure of the housing in the embodiment of the present invention is shown in FIG. Figure 2 .

[0016] Figure 3Schematic diagram of the guide plate connection structure in an embodiment of the present invention.

[0017] Figure 4 Schematic diagram of the connection structure of the grinding roller in an embodiment of the present invention.

[0018] Figure 5 Schematic diagram of the connection structure of the slider in the embodiment of the present invention.

[0019] In the figure: 1-housing; 2-discharging channel; 3-discharging hopper; 4-crushing mechanism; 41-crushing roller; 42-first gear; 43-first motor; 5-rotating mechanism; 51-mounting plate; 52-second motor; 53-limiting rod; 6-dispersion mechanism; 61-baffle; 62-guide plate; 63-second gear; 64-rotating rod; 65-sliding rod; 66-first elastic component; 67-push plate; 68-push block; 69-tooth plate; 610-guide plate; 7-vibrating mechanism; 71-recessed part; 72-pulley; 73-belt; 74-sliding block; 75-second elastic component; 76-push rod; 77-limiting plate; 78-rotating shaft; 79-turntable; 8-grinding bin; 9-grinding roller; 10-bracket; 11-threaded rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] In one embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4 A polyanionic cellulose production grinder comprises a casing 1, a feeding channel 2 is provided on the top of the casing 1, a feeding hopper 3 is provided on the top of the feeding channel 2, a crushing mechanism 4 is provided inside the feeding channel 2, and the crushing mechanism 4 is used for the preliminary crushing of the polyanionic cellulose, a grinding bin 8 is provided inside the casing 1, and a plurality of sieve holes are provided at the bottom of the grinding bin 8, wherein a dispersion mechanism 6 is provided between the grinding bin 8 and the feeding channel 2, and the dispersion mechanism 6 is used for dispersing the preliminarily crushed polyanionic cellulose, a grinding roller 9 is provided inside the grinding bin 8, and the grinding roller 9 is rotatably connected to a bracket 10, and the bracket 10 is threadedly connected to a threaded rod 11, and the threaded rod 11 passes through the side wall of the casing 1 and is connected to a rotating mechanism 5, and the rotating mechanism 5 is used for driving the threaded rod 11 to rotate, and the grinding bin 8 is connected to a vibration mechanism 7, and the vibration mechanism 7 is used for driving the grinding bin 8 to vibrate.

[0023] In the present embodiment, when the polyanionic cellulose is ground, the polyanionic cellulose is poured into the casing 1 through the discharge hopper 3. In the process of the polyanionic cellulose being poured into the casing 1, it passes through the discharge channel 2, wherein a grinding mechanism 4 is provided inside the discharge channel 2. The grinding mechanism 4 can be used to preliminarily grind the polyanionic cellulose, thereby improving the grinding efficiency of the polyanionic cellulose. The polyanionic cellulose after the preliminary grinding directly falls into the grinding bin 8. At this time, the threaded rod 11 is driven to reciprocate by the rotating mechanism 5. The threaded connection between the threaded rod 11 and the bracket 10 drives the bracket 10 to reciprocate in the casing 1, thereby driving the grinding roller 9 to roll back and forth in the grinding bin 8. The polyanionic cellulose in the grinding bin 8 is ground by the grinding roller 9, and the polyanionic cellulose that meets the requirements is obtained. The cellulose powder falls directly through the sieve holes at the bottom of the grinding bin 8, and the polyanionic cellulose that does not meet the requirements continues to be ground by the grinding roller 9 inside the grinding bin 8 until it meets the requirements, and the grinding bin 8 is connected to a vibration mechanism 7, which can drive the grinding bin 8 to vibrate, thereby causing the polyanionic cellulose inside the grinding bin 8 to fall from the sieve holes, avoiding the accumulation of polyanionic cellulose powder inside the grinding bin 8, and ensuring the grinding efficiency of the polyanionic cellulose. In addition, the dispersion mechanism 6 inside the casing 1 will disperse the polyanionic cellulose in the process of falling from the discharge channel 2, so that the polyanionic cellulose can fall evenly inside the grinding bin 8, thereby avoiding the accumulation of polyanionic cellulose at a certain position inside the grinding bin 8, and further improving the grinding effect of the polyanionic cellulose.

[0024] See also Figure 1 and Figure 2 The pulverizing mechanism 4 includes symmetrically distributed pulverizing rollers 41 arranged inside the material discharge channel 2, the ends of the pulverizing rollers 41 penetrate the side wall of the material discharge channel 2 and are rotatably connected to the side wall of the material discharge channel 2, one end of each of the pulverizing rollers 41 is fixed with a first gear 42, the first gear 42 is meshed, a first motor 43 is installed on the side wall of the material discharge channel 2, and the output end of the first motor 43 is fixedly connected to one end of the pulverizing rollers 41;

[0025] When the polyanionic cellulose is ground, the first motor 43 is started, and the first motor 43 drives one of the pulverizing rollers 41 to rotate, and the pulverizing roller 41 drives the other pulverizing roller 41 to rotate through the mutual engagement of the first gear 42, so that the two pulverizing rollers 41 rotate in opposite directions. The pulverizing rollers 41 that rotate in opposite directions can effectively improve the initial pulverization effect of the polyanionic cellulose.

[0026] See also Figure 2 and Figure 4The rotating mechanism 5 includes a mounting plate 51 fixed on the outer wall of the housing 1, a second motor 52 is installed at the bottom of the mounting plate 51, an output end of the second motor 52 is fixedly connected to one end of the threaded rod 11, and a limiting rod 53 is fixed inside the housing 1, the limiting rod 53 passes through the bracket 10 and is slidably connected to the bracket 10;

[0027] When the polyanionic cellulose is crushed, the second motor 52 is started. The second motor 52 first drives the threaded rod 11 to rotate a certain number of circles, so that the grinding roller 9 moves from one side of the grinding bin 8 to the other side. When the grinding roller 9 moves from one side of the grinding bin 8 to the other side, the second motor 52 drives the threaded rod 11 to rotate a certain number of circles in the opposite direction, so that the grinding roller 9 moves back. This cycle is repeated, so that the grinding roller 9 can roll back and forth at the bottom of the grinding bin 8, thereby achieving the grinding effect of the polyanionic cellulose, wherein the limit rod 53 has a limiting effect on the bracket 10, which effectively improves the stability of the bracket 10 when it moves.

[0028] See also Figure 3 The dispersion mechanism 6 includes guide plates 62 arranged above the grinding bin 8 and symmetrically distributed, the ends of the guide plates 62 that are away from each other are tilted downward, and the ends of the guide plates 62 that are close to each other are fixed with a rotating rod 64, which penetrates the side wall of the casing 1 and is rotatably connected to the side wall of the casing 1, wherein the guide plates 62 are connected with a swinging assembly, and the swinging assembly is used to drive the two guide plates 62 to swing relative to each other;

[0029] When the polyanionic cellulose is ground, the polyanionic cellulose that has been initially crushed will fall on the surfaces of the two guide plates 62. At this time, the two guide plates 62 are driven to swing relative to each other by the swinging assembly. When the two guide plates 62 swing inward, the polyanionic cellulose that slides off the surfaces of the guide plates 62 will fall near the middle of the grinding chamber 8. When the two guide plates 62 swing outward, the polyanionic cellulose that slides off the surfaces of the guide plates 62 will fall near the outside of the grinding chamber 8. This cycle is repeated, which can effectively disperse the polyanionic cellulose and ensure the grinding effect of the polyanionic cellulose.

[0030] See also Figure 3 The swing assembly includes a second gear 63 fixed to the end of the rotating rod 64, a tooth plate 69 is provided between the second gears 63, the tooth plate 69 is meshed with the two second gears 63, a slide bar 65 is fixed to the bottom of the tooth plate 69, a guide plate 610 is fixed to the side wall of the housing 1, the slide bar 65 penetrates the guide plate 610 and is slidably connected to the guide plate 610, a push plate 67 is fixed to the bottom of the slide bar 65, and the push plate 67 is connected to the guide plate 610 through a first elastic component 66, wherein a push block 68 for squeezing the push plate 67 is fixed to the outside of the threaded rod 11;

[0031] When the threaded rod 11 rotates, it drives the push block 68 to rotate. When the push block 68 rotates to a certain angle, the push block 68 squeezes the push plate 67, so that the push plate 67 drives the tooth plate 69 to move upward through the slide rod 65, and the engagement of the tooth plate 69 with the second gear 63 drives the rotating rod 64 to rotate, thereby driving the guide plate 62 to swing. When the push block 68 no longer squeezes the push plate 67, the push plate 67 automatically resets under the action of the first elastic component 66. The first elastic component 66 can be a spring, and then drives the tooth plate 69 to automatically reset through the slide rod 65. At this time, the engagement of the tooth plate 69 with the second gear 63 drives the guide plate 62 to swing in the opposite direction. Such a reciprocating cycle can make the guide plate 62 swing back and forth relative to each other, thereby dispersing the polyanionic cellulose.

[0032] See also Figure 3 A baffle 61 is disposed directly above the guide plate 62, and the baffle 61 is arranged in an inverted "V" shape and is fixedly connected to the inner wall of the casing 1;

[0033] The baffle plate 61 arranged in an inverted “V” shape can play a preliminary guiding role for the polyanionic cellulose, thereby ensuring that the polyanionic cellulose that has been initially crushed can completely fall onto the surface of the guide plate 62 .

[0034] See also Figure 5 The vibration mechanism 7 includes a slideway symmetrically arranged on the side wall of the casing 1, a slider 74 symmetrically arranged is fixed on the side wall of the grinding chamber 8, the slider 74 penetrates the slideway and is slidably connected to the slideway, a push rod 76 is fixed to the bottom of the slider 74, a limit plate 77 is fixed on the outer wall of the casing 1, the slider 74 is connected to the limit plate 77 through a second elastic component 75, a symmetrically distributed rotating shaft 78 is rotatably connected to the outer wall of the casing 1, the rotating shaft 78 is transmission-connected to the threaded rod 11 through a belt 73 and a pulley 72, a rotating disk 79 for squeezing the push rod 76 is fixed to the outside of the rotating shaft 78, and a recessed portion 71 is provided on the side wall of the rotating disk 79;

[0035] When the threaded rod 11 rotates, the rotating shaft 78 is driven to rotate through the belt 73 and the pulley 72, and the rotating shaft 78 drives the rotating disk 79 to rotate. When the rotating disk 79 rotates, the push rod 76 is squeezed through its circular side wall, so that the bottom of the grinding chamber 8 is closely fitted with the grinding roller 9, so that the grinding roller 9 can grind the polyanionic cellulose inside the grinding chamber 8, and the rotating disk 79 has a long circular side wall, so that the grinding roller 9 can be in contact with the bottom of the grinding chamber 8 for a long time, ensuring the grinding effect of the grinding roller 9 on the polyanionic cellulose. When the recessed portion 71 of the rotating disk 79 rotates to the bottom of the push rod 76, the squeezing degree of the rotating disk 79 on the push rod 76 is reduced, and the slider 74 automatically moves downward under the action of the second elastic component 75, which can be a spring, thereby driving the grinding chamber 8 to move downward, so that the grinding chamber 8 shakes, causing the polyanionic cellulose inside the grinding chamber 8 to fall from the sieve hole, avoiding the phenomenon of polyanionic cellulose powder accumulating inside the grinding chamber 8, and ensuring the grinding efficiency of the polyanionic cellulose.

[0036] Working principle: When the polyanionic cellulose is ground, the polyanionic cellulose is poured into the casing 1 through the feed hopper 3. In the process of the polyanionic cellulose being poured into the casing 1, it passes through the feed channel 2. The polyanionic cellulose is initially ground by the grinding rollers 41 symmetrically distributed inside the feed channel 2, thereby improving the grinding efficiency of the polyanionic cellulose. The polyanionic cellulose after the initial grounding falls directly into the grinding bin 8. At this time, the grinding rollers 9 are driven to roll back and forth at the bottom of the grinding bin 8 through the threaded connection between the threaded rod 11 and the bracket 10, thereby grinding the polyanionic cellulose. The polyanionic cellulose powder that meets the requirements falls directly through the sieve holes at the bottom of the grinding bin 8 without The polyanionic cellulose that meets the requirements continues to be ground by the grinding roller 9 inside the grinding chamber 8 until it meets the requirements, and the threaded rod 11 rotates while driving the push block 68 to rotate. When the push block 68 rotates to a certain angle, the push block 68 squeezes the push plate 67, so that the push plate 67 drives the tooth plate 69 to move upward through the slide bar 65, and the engagement between the tooth plate 69 and the second gear 63 drives the rotating rod 64 to rotate, thereby driving the guide plate 62 to swing. When the push block 68 no longer squeezes the push plate 67, the push plate 67 drives the tooth plate 69 to automatically reset through the slide bar 65. At this time, the engagement between the tooth plate 69 and the second gear 63 drives the guide plate 62 to swing in the opposite direction. This reciprocating cycle can make the guide plate 62 The two guide plates 62 swing back and forth relative to each other. When the two guide plates 62 swing inward, the polyanionic cellulose sliding off the surface of the guide plate 62 will fall near the middle of the grinding chamber 8. When the two guide plates 62 swing outward, the polyanionic cellulose sliding off the surface of the guide plate 62 will fall near the outside of the grinding chamber 8. This cycle can effectively disperse the polyanionic cellulose, so that the polyanionic cellulose can fall evenly inside the grinding chamber 8, thereby avoiding the phenomenon of polyanionic cellulose piling up at a certain position inside the grinding chamber 8, thereby ensuring the grinding effect of the polyanionic cellulose. The threaded rod 11 rotates while driving the rotating shaft through the belt 73 and the pulley 72. 78 rotates, and the rotating shaft 78 drives the rotating disk 79 to rotate. While the rotating disk 79 rotates, it squeezes the push rod 76 through its circular side wall, so that the bottom of the grinding bin 8 is closely fitted with the grinding roller 9, and then the grinding roller 9 can grind the polyanionic cellulose inside the grinding bin 8. When the recessed portion 71 of the rotating disk 79 rotates to just below the push rod 76, the squeezing degree of the rotating disk 79 on the push rod 76 is reduced, and the slider 74 automatically moves downward, thereby driving the grinding bin 8 to move downward, and then the grinding bin 8 shakes, causing the polyanionic cellulose inside the grinding bin 8 to fall from the sieve hole, thereby avoiding the phenomenon of polyanionic cellulose powder accumulating inside the grinding bin 8, thereby ensuring the grinding efficiency of the polyanionic cellulose.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyanionic cellulose production grinding machine, comprising a housing; characterized in that: A feeding channel is provided on the top of the casing, a feeding hopper is provided on the top of the feeding channel, a crushing mechanism is provided inside the feeding channel, the crushing mechanism is used for the preliminary crushing of polyanionic cellulose, a grinding bin is provided inside the casing, a plurality of sieve holes are provided at the bottom of the grinding bin, a dispersing mechanism is provided between the grinding bin and the feeding channel, the dispersing mechanism is used for dispersing the preliminary crushed polyanionic cellulose, a grinding roller is provided inside the grinding bin, the grinding roller is rotatably connected to a bracket, the bracket is threadedly connected to a threaded rod, the threaded rod passes through the side wall of the casing and is connected to a rotating mechanism, the rotating mechanism is used for driving the threaded rod to rotate, the grinding bin is connected to a vibrating mechanism, the vibrating mechanism is used for driving the grinding bin to vibrate; the dispersing mechanism includes guide plates which are arranged above the grinding bin and are symmetrically distributed, and the guide plates are mutually The end away from the housing is inclined downward, and the end of the guide plates that are close to each other is fixed with a rotating rod, the rotating rod penetrates the side wall of the casing and is rotatably connected to the side wall of the casing, wherein the guide plate is connected to a swing assembly, and the swing assembly is used to drive the two guide plates to swing relative to each other; the swing assembly includes a second gear fixed to the end of the rotating rod, a toothed plate is provided between the second gears, the toothed plate is meshed with the two second gears, a sliding rod is fixed to the bottom of the toothed plate, a guide plate is fixed on the side wall of the casing, the sliding rod penetrates the guide plate and is slidably connected to the guide plate, a push plate is fixed to the bottom of the sliding rod, and the push plate is connected to the guide plate through a first elastic component, wherein a push block for squeezing the push plate is fixed to the outside of the threaded rod; a baffle is provided directly above the guide plate, the baffle is arranged in an inverted "V" shape and is fixedly connected to the inner wall of the casing; When the two guide plates swing inward, the polyanionic cellulose that slides off the surface of the guide plates will fall near the middle of the grinding chamber. When the two guide plates swing outward, the polyanionic cellulose that slides off the surface of the guide plates will fall near the outside of the grinding chamber. This cycle repeats, which can effectively disperse the polyanionic cellulose and make it fall evenly inside the grinding chamber. The vibration mechanism includes a slideway that is arranged on the side wall of the casing and is symmetrically distributed, a slider that is symmetrically distributed is fixed on the side wall of the grinding chamber, the slider passes through the slideway and is slidably connected to the slideway, a push rod is fixed at the bottom of the slider, a limit plate is fixed on the outer wall of the casing, the slider is connected to the limit plate through a second elastic component, a symmetrically distributed rotating shaft is rotatably connected to the outer wall of the casing, the rotating shaft is transmission-connected to the threaded rod through a belt and a pulley, a turntable for squeezing the push rod is fixed to the outside of the rotating shaft, and a recessed portion is provided on the side wall of the turntable.

2. A polyanionic cellulose production grinder according to claim 1, characterized in that: The crushing mechanism includes crushing rollers which are arranged inside the feeding channel and are symmetrically distributed. The ends of the crushing rollers penetrate the side walls of the feeding channel and are rotatably connected to the side walls of the feeding channel. A first gear is fixed to one end of the crushing rollers, and the first gears are meshed. A first motor is installed on the side wall of the feeding channel, and the output end of the first motor is fixedly connected to one of the ends of the crushing rollers.

3. A polyanionic cellulose production grinder according to claim 1, characterized in that: The rotating mechanism includes a mounting plate fixed on the outer wall of the casing, a second motor is installed at the bottom of the mounting plate, an output end of the second motor is fixedly connected to one end of the threaded rod, a limiting rod is fixed inside the casing, the limiting rod passes through the bracket and is slidably connected to the bracket.

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