CN220812221U - Automatic cleaning glass fiber wire drawing machine - Google Patents

Abstract

The application discloses an automatic cleaning glass fiber drawing machine which comprises a frame, wherein a main shaft mechanism, an impeller mechanism, a turnover mechanism, a grooved drum mechanism, a wire blocking mechanism, an automatic feeding mechanism, an automatic yarn cutting mechanism, an automatic yarn removing mechanism and a control mechanism are arranged on the frame, a partition plate is fixed on a frame body on the same side of the frame and the impeller mechanism, an active yarn winding assembly, a standby yarn winding assembly and an S plate for separating the standby yarn winding assembly from the active yarn winding assembly are arranged on the impeller mechanism, the glass fiber drawing machine further comprises an automatic cleaning mechanism, and the automatic cleaning mechanism comprises a first cleaning assembly for cleaning one side of the S plate far away from the active yarn winding assembly and a second cleaning assembly arranged on the partition plate and used for cleaning the grooved drum mechanism. The application can self-clean the easily polluted part of the drawing machine, keeps the cleaning of the glass fiber drawing machine and is beneficial to improving the product quality.

Description

Automatic cleaning glass fiber wire drawing machine

Technical Field

The utility model relates to the technical field of wire drawing machines, in particular to an automatic cleaning glass fiber wire drawing machine.

Background

The glass fiber drawing machine is a mechanical device for drawing glass melt into fiber form at high speed and winding the fiber into fiber rolls according to a certain rule.

In the production process of the glass fiber drawing machine, glass fiber yarns need to be wound on a yarn winding ring at the front end of an impeller mechanism, then the glass fiber yarns are gradually wound on a yarn winding drum on the impeller mechanism under the action of a yarn blocking mechanism to be wound into yarn windings, impregnating compound thrown out under the action of centrifugal force is thrown out in the yarn winding process, and thrown out wool yarns are needed to be cleaned in time when the yarn winding process is carried out, and the impregnating compound and the wool yarns are possibly stuck to equipment for a long time, so that workers need to frequently clean the equipment, certain potential safety hazards still exist during working, and the automatic production efficiency of the glass fiber drawing machine is influenced.

Disclosure of utility model

In order to solve the problems, the utility model provides an automatic cleaning glass fiber drawing machine.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides an automatically cleaning' S glass fiber wire drawing machine, includes the frame, be provided with spindle unit, impeller mechanism, tilting mechanism, groove drum mechanism, fender silk mechanism, automatic feeding mechanism, automatic yarn mechanism and the control mechanism of taking off in the frame, be fixed with the baffle on the support body of frame and impeller mechanism homonymy, be provided with on the impeller mechanism and roll up yarn subassembly, reserve yarn subassembly and be used for separating reserve yarn subassembly and initiative S board of rolling up yarn subassembly, glass fiber wire drawing machine still includes self-cleaning mechanism, self-cleaning mechanism is kept away from the first clean subassembly of initiative yarn subassembly one side and is used for the clean subassembly of second of groove drum mechanism on the baffle including being used for cleaning the S board.

Through adopting above-mentioned technical scheme, in yarn package winding process, the infiltration agent that the initiative silk winding ring in the initiative yarn package was thrown away under the effect of centrifugal force, and part infiltration agent gets rid of to S board and is close to on the lateral wall of initiative yarn package one side, and after reserve yarn package was converted into operating condition, first clean subassembly can wash the infiltration agent that S board surface was bonded. The second cleaning component is used for flushing the grooved drum mechanism in the process of replacing the yarn winding component, so that the surface of the grooved drum mechanism is kept clean, the probability of pollution of a subsequent yarn winding by the impregnating compound generated in the yarn winding process is reduced, and the product quality is improved.

Further, the first clean subassembly is including being fixed in the sleeve pipe in the frame, being close to the inlet tube of one end intercommunication of frame with the sleeve pipe, keeping away from the first water inlet ring of one side intercommunication of reserve package yarn subassembly and with the sleeve pipe intercommunication, three first nozzle all is kept away from one side setting of initiative package yarn subassembly towards the S board, three first nozzle is equal with each other interval, first water inlet ring communicates with the inside water valve of wire drawing machine, and the high-pressure water pump is connected to the water valve, and the outside water source is connected to the high-pressure water pump.

Further, the first cleaning assembly also includes a second nozzle in communication with the sleeve, the second nozzle being aligned with the rotating drip tray and the S-plate root.

Further, the water inlet pipe penetrates through the machine frame and is rotationally connected with the machine frame, a water flowing hole is formed in the water inlet pipe, the extending direction of the water flowing hole is parallel to the axial direction of the sleeve, and the water outlet of the water flowing hole is communicated with the sleeve;

the water inlet pipe is provided with the second water inlet ring on being close to the position of first water inlet ring, the one end that first water inlet ring was kept away from to the inlet pipe is fixed and the intercommunication has the water conduit, the one end that first water inlet ring was kept away from to the water conduit is connected with the shunt, the shunt bottom is fixed and the intercommunication has first spray pipe and second spray pipe, the delivery port of first spray pipe aligns around the reserve silk winding ring, the delivery port of second spray pipe aligns one side that reserve silk winding ring kept away from the frame.

Through adopting above-mentioned technical scheme, high-pressure water pump pumps the water source into the water valve, and rivers get into the sleeve pipe through first water inlet ring, inlet tube in proper order afterwards, by first nozzle, second nozzle, first spray pipe and second spray pipe blowout. The first nozzle sprays water towards one side of the S plate, which is far away from the active yarn winding assembly, so as to clean one side of the S plate, which is far away from the active yarn winding assembly, and the second nozzle sprays water to clean the standby dust cover, the first spray pipe sprays water to clean the periphery of the standby yarn winding ring, and the second spray pipe sprays water to clean one side of the standby yarn winding ring, which is far away from the frame, so that the surfaces of the S plate, the standby dust cover and the standby yarn winding ring are cleaned, and the probability of influencing the quality of the later-stage glass fiber winding due to bonding sizing agent on the surfaces of the S plate, the standby dust cover and the standby yarn winding ring is reduced.

Further, a driving cylinder is hinged to the frame, and a piston rod of the driving cylinder is movably connected with the top of the water inlet pipe.

Through adopting above-mentioned technical scheme, drive cylinder work back for the inlet tube takes place to rotate, takes place to rotate with the fixed water conduit of inlet tube, makes water distribution pipe, first spray pipe and second spray pipe all take place to rotate, until first spray pipe and second spray pipe keep away from reserve reel silk ring of reserve reel yarn subassembly, so that follow-up section of thick bamboo process of unloading.

Further, the second cleaning component comprises a first water pipe fixed at the bottom of the partition plate and penetrating through the frame, a third nozzle communicated with the first water pipe, a fourth nozzle communicated with the first water pipe and a fifth nozzle communicated with the first water pipe, the first water pipe is communicated with a water valve inside the wire drawing machine, the water valve is connected with a high-pressure water pump, the high-pressure water pump is connected with an external water source, the third nozzle is aligned with the grooved drum mechanism, the fourth nozzle is aligned with a transmission case of the grooved drum mechanism, and the fifth nozzle is aligned with the active dust cover.

Through adopting above-mentioned technical scheme, the high-pressure water pump pumps the water source into the water valve, and rivers get into first water pipe afterwards, are spouted by third nozzle, fourth nozzle and fifth nozzle respectively, clean groove drum mechanism, transmission case, initiative dust cover respectively.

Further, a soft baffle plate positioned above the S plate is fixed on the partition plate, and the bottom of the soft baffle plate is close to the top of the S plate.

Through adopting above-mentioned technical scheme, soft baffle is with initiative yarn subassembly, reserve yarn subassembly of rolling up separately to this makes one side of reserve yarn subassembly of rolling up keep clean and tidy, has avoided the sizing in the yarn process to get rid of the condition to reserve yarn subassembly one side of rolling up.

In summary, the utility model has the following beneficial effects:

1. In the application, during the winding process of the yarn package, the active yarn winding ring in the active yarn winding assembly throws out the impregnating compound under the action of centrifugal force, part of the impregnating compound is thrown to the side wall of the S plate, which is close to one side of the active yarn winding assembly, and after the standby yarn winding assembly is converted into a working state, the first cleaning assembly can wash the impregnating compound adhered to the surface of the S plate. The second cleaning component is used for flushing the grooved drum mechanism in the process of replacing the yarn winding component, so that the surface of the grooved drum mechanism is kept clean, the probability of pollution of a subsequent yarn winding by the impregnating compound generated in the yarn winding process is reduced, and the product quality is improved;

2. In the application, a high-pressure water pump pumps a water source into a water valve, then water flows into a sleeve through a first water inlet ring and a water inlet pipe in sequence, and then is sprayed out of a first nozzle, a second nozzle, a first spray pipe and a second spray pipe. The first spray nozzle sprays water towards one side of the S plate, which is far away from the active yarn winding assembly, so as to clean one side of the S plate, which is far away from the active yarn winding assembly, the second spray nozzle sprays water to clean the standby dust cover, the first spray pipe sprays water to clean the periphery of the standby yarn winding ring, and the second spray pipe sprays water to clean one side of the standby yarn winding ring, which is far away from the frame, so that the surfaces of the S plate, the standby dust cover and the standby yarn winding ring are cleaned, and the probability of influencing the quality of the later-stage glass fiber winding yarns due to bonding sizing agents on the surfaces of the S plate, the standby dust cover and the standby yarn winding ring is reduced;

3. According to the application, the active yarn winding assembly and the standby yarn winding assembly are separated by the soft baffle plate, so that one side of the standby yarn winding assembly is kept clean and tidy, and the condition that the sizing agent is thrown to one side of the standby yarn winding assembly in the yarn winding process is avoided.

Drawings

FIGS. 1, 2 and 3 are schematic views of the overall structure of an embodiment of the present utility model, in which a first water spray pipe and a second water spray pipe are separated from an active wire winding ring, so as to facilitate replacement of a wire winding assembly;

FIG. 4 is a schematic view showing a partial structure of a first cleaning assembly for cleaning an active wire winding ring according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an embodiment of the present utility model highlighting a first cleaning assembly;

FIG. 6 is a schematic view showing the connection structure between the penstock and the inlet pipe according to the embodiment of the present utility model;

fig. 7 is an enlarged schematic view at a in fig. 6.

In the figure: 1. a frame; 11. a spindle mechanism; 12. an impeller mechanism; 121. an active yarn winding assembly; 1211. an active wire winding ring; 122. a standby yarn winding assembly; 1221. a standby wire winding ring; 123. s plate; 13. a turnover mechanism; 14. a grooved drum mechanism; 15. a wire blocking mechanism; 16. an automatic loading mechanism; 17. an automatic yarn cutting mechanism; 18. an automatic yarn-releasing mechanism; 19. a partition plate; 10. a transmission case; 2. an automatic cleaning mechanism; 21. a first cleaning assembly; 211. a sleeve; 212. a water inlet pipe; 2121. a water flow hole; 213. a first water inlet ring; 214. a first nozzle; 215. a second nozzle; 216. a second water inlet ring; 217. a water conduit; 218. a water diversion pipe; 219. a first water jet pipe; 220. a second water jet pipe; 22. a second cleaning assembly; 221. a first water pipe; 222. a third nozzle; 223. a fourth nozzle; 224. a fifth nozzle; 3. a spare dust cover; 4. a driving cylinder; 5. an active dust cap; 6. a soft baffle; 7. rotating the waterproof disc; 8. and a sixth nozzle.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the protection scope of the present application.

As shown in fig. 1-4, the embodiment of the application discloses an automatic cleaning glass fiber drawing machine, which comprises a frame 1, wherein a main shaft mechanism 11, an impeller mechanism 12, a turnover mechanism 13, a grooved drum mechanism 14, a wire blocking mechanism 15, an automatic loading mechanism 16, an automatic yarn cutting mechanism 17, an automatic yarn taking-off mechanism 18, a control mechanism and an automatic cleaning mechanism 2 are arranged on the frame 1. The frame body on the same side of the frame 1 and the impeller mechanism 12 is fixedly provided with a baffle 19, and the impeller mechanism 12 is provided with an active yarn winding assembly 121, a standby yarn winding assembly 122 and an S plate 123 for separating the standby yarn winding assembly 122 from the active yarn winding assembly 121.

The automatic cleaning mechanism 2 comprises a first cleaning component 21 for cleaning the side of the S plate 123 away from the active yarn winding component 121 and a second cleaning component 22 which is arranged on the partition 19 and is used for cleaning the grooved drum mechanism 14, wherein the first cleaning component 21 comprises a sleeve 211, a water inlet pipe 212, a first water inlet ring 213, a first nozzle 214, a second nozzle 215, a sixth nozzle 8, a second water inlet ring 216, a water conduit 217, a water conduit 218, a first water spray pipe 219 and a second water spray pipe 220. The sleeve 211 is fixed on the frame 1, the water inlet pipe 212 is connected with one end of the sleeve 211 close to the frame 1, the water inlet pipe 212 penetrates through the frame 1 and is rotationally connected with the frame 1, a water flowing hole 2121 communicated with the sleeve 211 is formed in the water inlet pipe 212, and the extending direction of the water flowing hole 2121 is parallel to the axial direction of the sleeve 211. The first water inlet ring 213 is communicated with one side of the water inlet pipe 212 far away from the standby yarn winding assembly 122, the first nozzles 214 are communicated with the sleeve 211, the first nozzles 214 are provided with three equidistant linear arrangements, and the three first nozzles 214 are all arranged towards one side of the S plate 123 far away from the active yarn winding assembly 121. In this embodiment, the first water inlet ring 213 is communicated with a water valve inside the wire drawing machine, the water valve is connected to a high pressure water pump, and the high pressure water pump is connected to an external water source. The second nozzle 215 is also communicated with the sleeve 211, the second nozzle 215 is aligned with and cleans the root parts of the turntable waterproof board 7 and the S board 123, the sixth nozzle 8 is communicated with the sleeve 211 at a position close to the frame 1, and the sixth nozzle 8 is aligned with and cleans the dust cover 3. The second water inlet ring 216 is disposed at a position of the water inlet pipe 212 near the first water inlet ring 213, the water diversion pipe 217 is fixed to and communicated with an end of the water inlet pipe 212 far away from the first water inlet ring 213, the water diversion pipe 218 is connected to an end of the water diversion pipe 217 far away from the first water inlet ring 213, the first water spray pipe 219 and the second water spray pipe 220 are both fixed to and communicated with the bottom of the water diversion pipe 218, the water outlet of the first water spray pipe 219 is aligned with the periphery of the standby wire winding ring 1221, and the water outlet of the second water spray pipe 220 is aligned with one side of the standby wire winding ring 1221 far away from the frame 1. During the winding process of the yarn package, the active yarn winding ring 1211 in the active yarn winding assembly 121 throws out the impregnating compound under the action of centrifugal force, part of the impregnating compound throws out the side wall of the S plate 123, which is close to one side of the active yarn winding assembly 121, after the standby yarn winding assembly 122 is converted into a working state, the high-pressure water pump pumps the water source into the water valve, then water flows into the sleeve 211 through the first water inlet ring 213 and the water inlet pipe 212 in sequence, and then is sprayed out by the first nozzle 214, the second nozzle 215, the first spray pipe 219 and the second spray pipe 220. The first nozzle 214 sprays water towards one side of the S plate 123 away from the active yarn winding assembly 121 to clean one side of the S plate 123 away from the active yarn winding assembly 121, the second nozzle 215 sprays water to clean the turntable waterproof plate 7 and the root of the S plate 123, the first spray pipe 219 sprays water to clean the periphery of the standby yarn winding ring 1221, and the second spray pipe 220 sprays water to clean one side of the standby yarn winding ring 1221 away from the frame 1, so that the surfaces of the S plate 123, the standby dust cover 3 and the standby yarn winding ring 1221 are cleaned, and the probability of influencing the quality of the glass fiber winding in the later stage due to bonding of the sizing agent on the surfaces of the S plate 123, the standby dust cover 3 and the standby yarn winding ring 1221 is reduced.

In order to prevent the standby wire winding ring 1221 from blocking in the process of unloading the cylinder, the frame 1 is hinged with a driving cylinder 4, and a piston rod of the driving cylinder 4 is movably connected with the top of the water inlet pipe 212. After the driving cylinder 4 works, the water inlet pipe 212 rotates, the water guide pipe 217 fixed with the water inlet pipe 212 rotates, the water guide pipe 218, the first water spray pipe 219 and the second water spray pipe 220 rotate until the first water spray pipe 219 and the second water spray pipe 220 are far away from the standby yarn winding ring 1221 of the standby yarn winding assembly 122, so that after the yarn winding is completed, the yarn cylinder of the wire drawing machine is switched.

The second cleaning assembly 22 comprises a first water pipe 221 fixed with the bottom of the partition plate 19 and penetrating through the frame 1, a third nozzle 222 communicated with the first water pipe 221, a fourth nozzle 223 communicated with the first water pipe 221 and a fifth nozzle 224 communicated with the first water pipe 221, wherein the first water pipe 221 is communicated with a water valve inside the wire drawing machine, the water valve is connected with a high-pressure water pump, the high-pressure water pump is connected with an external water source, the third nozzle 222 is aligned with the grooved drum mechanism 14, the fourth nozzle 223 is aligned with the transmission case 10 of the grooved drum mechanism 14, and the fifth nozzle 224 is aligned with the active dust cover 5. The high-pressure water pump pumps water into the water valve, then water flows into the first water pipe 221, and is sprayed out by the third nozzle 222, the fourth nozzle 223 and the fifth nozzle 224 respectively, so that the grooved drum mechanism 14, the transmission case 10 and the active dust cover 5 are cleaned respectively.

To improve the effect of keeping the glass fiber drawing machine clean, a soft baffle 6 positioned above the S plate 123 is fixed on the baffle 19, and the bottom of the soft baffle 6 is close to the top of the S plate 123. The soft baffle 6 separates the active yarn winding assembly 121 from the standby yarn winding assembly 122, so that one side of the standby yarn winding assembly 122 is kept clean and tidy, and the situation that the sizing agent is thrown to one side of the standby yarn winding assembly 122 in the yarn winding process is avoided.

The application principle of the automatic cleaning glass fiber drawing machine in the embodiment is as follows: during the winding process of the yarn package, the active yarn winding ring 1211 in the active yarn winding assembly 121 throws out the impregnating compound under the action of centrifugal force, part of the impregnating compound throws out the side wall of the S plate 123, which is close to one side of the active yarn winding assembly 121, when the first cleaning assembly starts to work after the drum replacement is finished, the water source is pumped into the water valve by the high-pressure water pump, then water flows into the sleeve 211 through the first water inlet ring 213 and the water inlet pipe 212 in sequence, and then is sprayed out by the first nozzle 214, the second nozzle 215, the first water spraying pipe 219 and the second water spraying pipe 220. The first nozzle 214 sprays water towards one side of the S plate 123 away from the active yarn winding assembly 121 to clean one side of the S plate 123 away from the active yarn winding assembly 121, the second nozzle 215 sprays water to clean the turntable waterproof plate 7 and the root of the S plate 123, the first spray pipe 219 sprays water to clean the periphery of the standby yarn winding ring 1221, and the second spray pipe 220 sprays water to clean one side of the standby yarn winding ring 1221 away from the frame 1, so that the surfaces of the S plate 123, the standby dust cover 3 and the standby yarn winding ring 1221 are cleaned, and the probability of influencing the quality of the glass fiber winding in the later stage due to bonding of the sizing agent on the surfaces of the S plate 123, the standby dust cover 3 and the standby yarn winding ring 1221 is reduced. The high-pressure water pump pumps water into the water valve, then water flows into the first water pipe 221, and is sprayed out by the third nozzle 222, the fourth nozzle 223 and the fifth nozzle 224 respectively, so that the grooved drum mechanism 14, the transmission case 10 and the active dust cover 5 are cleaned respectively.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (7)

1. The utility model provides an automatically cleaning's glass fiber wire drawing machine, includes frame (1), be provided with main shaft mechanism (11), impeller mechanism (12), tilting mechanism (13), groove section of thick bamboo mechanism (14), fender silk mechanism (15), automatic feeding mechanism (16), automatic yarn mechanism (17), automatic yarn mechanism (18) and control mechanism, characterized by on frame (1): be fixed with baffle (19) on the support body of frame (1) and impeller mechanism (12) homonymy, be provided with initiative package yarn subassembly (121), reserve package yarn subassembly (122) on impeller mechanism (12) and be used for separating reserve package yarn subassembly (122) and initiative package yarn subassembly (121) S board (123), glass fiber wire drawing machine still includes self-cleaning mechanism (2), self-cleaning mechanism (2) are including being used for cleaning S board (123) to keep away from first clean subassembly (21) of initiative package yarn subassembly (121) one side and set up on baffle (19) and be used for clean groove drum mechanism (14) second clean subassembly (22).

2. The self-cleaning glass fiber drawing machine according to claim 1, wherein: the first cleaning assembly (21) comprises a sleeve (211) fixed on the frame (1), a water inlet pipe (212) communicated with one end, close to the frame (1), of the sleeve (211), a first water inlet ring (213) communicated with one side, far away from the standby yarn winding assembly (122), of the water inlet pipe (212), and three first nozzles (214) communicated with the sleeve (211), wherein the three first nozzles (214) are arranged towards one side, far away from the active yarn winding assembly (121), of the S plate (123), the three first nozzles (214) are equal in interval, the first water inlet ring (213) is communicated with a water valve inside the wire drawing machine, the water valve is connected with a high-pressure water pump, and the high-pressure water pump is connected with an external water source.

3. The self-cleaning glass fiber drawing machine according to claim 2, wherein: the first cleaning assembly (21) further comprises a second nozzle (215) in communication with the sleeve (211), the second nozzle (215) being aligned with the root of the rotating waterproof disc (7) and the S-plate (123).

4. The self-cleaning glass fiber drawing machine according to claim 3, wherein: the water inlet pipe (212) penetrates through the frame (1) and is rotationally connected with the frame (1), a water flowing hole (2121) is formed in the water inlet pipe (212), the extending direction of the water flowing hole (2121) is parallel to the axial direction of the sleeve (211), and a water outlet of the water flowing hole (2121) is communicated with the sleeve (211);

The utility model discloses a stand-by silk winding machine is characterized in that a second water inlet ring (216) is arranged on the position of a water inlet pipe (212) close to a first water inlet ring (213), one end of the water inlet pipe (212) away from the first water inlet ring (213) is fixed and communicated with a water diversion pipe (217), one end of the water diversion pipe (217) away from the first water inlet ring (213) is connected with a water diversion pipe (218), a first water spray pipe (219) and a second water spray pipe (220) are fixed and communicated at the bottom of the water diversion pipe (218), the water outlet of the first water spray pipe (219) is aligned with the periphery of the stand-by silk winding ring (1221), and the water outlet of the second water spray pipe (220) is aligned with one side of the stand-by silk winding ring (1221) away from the stand-by silk winding ring (1).

5. The self-cleaning glass fiber drawing machine according to claim 4, wherein: the machine frame (1) is hinged with a driving air cylinder (4), and a piston rod of the driving air cylinder (4) is movably connected with the top of the water inlet pipe (212).

6. The self-cleaning glass fiber drawing machine according to claim 2, wherein: the second cleaning assembly (22) comprises a first water pipe (221) fixed at the bottom of the partition plate (19) and penetrating through the frame (1), a third nozzle (222) communicated with the first water pipe (221), a fourth nozzle (223) communicated with the first water pipe (221) and a fifth nozzle (224) communicated with the first water pipe (221), the first water pipe (221) is communicated with a water valve inside the wire drawing machine, the water valve is connected with a high-pressure water pump, the high-pressure water pump is connected with an external water source, the third nozzle (222) is aligned with the groove drum mechanism (14), the fourth nozzle (223) is aligned with a transmission case (10) of the groove drum mechanism (14), and the fifth nozzle (224) is aligned with the active dust cover (5).

7. The self-cleaning glass fiber drawing machine according to claim 2, wherein: a soft baffle plate (6) positioned above the S plate (123) is fixed on the baffle plate (19), and the bottom of the soft baffle plate (6) is close to the top of the S plate (123).