CN110975757A

CN110975757A - Concentrated feed granulator

Info

Publication number: CN110975757A
Application number: CN201911217971.0A
Authority: CN
Inventors: 江国托; 刘艳; 顾艳丽; 王效禹; 高鑫; 宋慧男; 郭斌; 赵萧; 王丹丹; 吴雯雯
Original assignee: Jiangsu Sanyi Animal Nutrition Technology Co ltd
Current assignee: Jiangsu Sanyi Animal Nutrition Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-04-10
Anticipated expiration: 2039-12-03
Also published as: CN110975757B

Abstract

The invention discloses a concentrated feed granulator which comprises a feed granulator fixing base, a limiting mechanism, a discharging mechanism and a cleaning mechanism, wherein the limiting mechanism comprises a transmission motor, the transmission motor is positioned on one side of the top end surface of the feed granulator fixing base, a motor fixing block is arranged at the joint of the transmission motor and the feed granulator fixing base, the transmission motor is fixedly connected to the top end surface of the motor fixing block, a dovetail sliding groove is formed in one side of the feed granulator fixing base, which is positioned on the bottom end surface of the motor fixing block, a dovetail sliding block is arranged on the bottom end surface of the motor fixing block, and the dovetail sliding block is positioned in the dovetail sliding groove. Feed granulator unable adjustment base has guaranteed that the motor fixed block can be fixed on feed granulator unable adjustment base top surface through having designed forked tail slider and sliding in forked tail spout inside.

Description

Concentrated feed granulator

Technical Field

The invention belongs to the technical field of granules, and particularly relates to a concentrated feed granulator.

Background

A feed granulator (a granulated feed machine, a feed granulator and a granulated feed forming machine) belongs to feed granulation equipment. The feed processing machine is characterized in that corn, bean pulp, straw, grass, rice husk and the like are used as raw materials, and the raw materials are crushed and directly pressed into granules. The feed granulator is divided into a ring mould feed granulator, a flat mould feed granulator and a pair roller feed granulator; according to the application, the method comprises the following steps: a small household pellet feeder, a poultry feed granulator, a small poultry pellet feeder, a fish feed granulator, a rabbit feed granulator, a pig feed granulator, a straw feed granulator; according to the production, the method can be divided into: straw feed granulator, wheat bran feed granulator, bean pulp feed granulator, corn straw feed granulator, sawdust feed granulator and the like. The different feed granulators are classified according to the differences in appearance and production.

The concentrated feed granulator is provided for solving the problems that after the existing feed granulator is used for a long time, a transmission belt for transmission becomes loose, the belt is easy to slip, and the transmission efficiency is reduced.

Disclosure of Invention

The invention aims to provide a concentrated feed granulator, which aims to solve the problems that after the conventional feed granulator is used for a long time, a transmission belt for transmission becomes loose, so that the belt is easy to slip, and the transmission efficiency is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a concentrated feed granulator comprises a feed granulator fixing base, a limiting mechanism, a discharging mechanism and a cleaning mechanism, wherein the limiting mechanism comprises a transmission motor, the transmission motor is arranged on one side of the top end surface of the feed granulator fixing base, a motor fixing block is arranged at the joint of the transmission motor and the feed granulator fixing base, the transmission motor is fixedly connected to the top end surface of the motor fixing block, a dovetail chute is formed in one side of the bottom end surface of the feed granulator fixing base, a dovetail slide block is arranged on the bottom end surface of the motor fixing block and is positioned in the dovetail chute, a limiting threaded rod is arranged on one side of the dovetail slide block, a hole is formed in one side of the inner wall of the dovetail chute, one end of the limiting threaded rod penetrates through the hole and is positioned outside the feed granulator fixing base, a rotating handle is arranged at one end of the limiting threaded rod, which is positioned outside the, the limiting device is characterized in that a limiting sleeve is arranged at the joint of the limiting threaded rod and the dovetail sliding block, a limiting groove is formed in one side surface of the limiting sleeve, the other end of the limiting threaded rod is located in the limiting groove, a first limiting fixture block is arranged on the surface of the other end of the limiting threaded rod, and the first limiting fixture block is located in the limiting groove.

Preferably, discharge mechanism includes ejection of compact tray, ejection of compact tray is in feed granulator unable adjustment base opposite side, ejection of compact tray is provided with spacing box with feed granulator unable adjustment base junction, ejection of compact tray one end is in inside the spacing box, the ejection of compact tray is provided with the pivot in the inside side surface of spacing box, ejection of compact tray rotates through pivot and feed granulator unable adjustment base to be connected, pivot outside surface is provided with spacing ratchet, spacing ratchet top surface is provided with the spacing fixture block of second, spacing fixture block one end of second runs through in spacing box, the both sides that the spacing fixture block of second is in spacing box inside all are provided with first spring, two first spring bottom surface all is provided with limit stop, two the equal fixed connection of limit stop is in the limit stop outside.

Preferably, clearance mechanism includes the feed granulator main part, feed granulator main part fixed connection is in feed granulator unable adjustment base top surface, the inside top of feed granulator main part is provided with the fodder material loading mouth, spacing spout has all been seted up to feed granulator main part top surface both sides, the inside spacing slider that is provided with of spacing spout, spacing slider outside surface is provided with the second spring, the second spring is inside in spacing spout, spacing slider top one side is provided with spacing the piece of drawing, just spacing one end of drawing runs through in spacing spout and is in feed granulator main part outside top, the draw-in groove has been seted up to fodder material loading mouth outside surface bottom, the second spring other end runs through spacing spout and is in inside the draw-in groove.

Preferably, the outer side surface of the limit threaded rod is provided with an external thread, the inner side of the hole is provided with an internal thread, and the limit threaded rod is connected with the hole in a screwing mode through the thread.

Preferably, the transmission motor passes through bolt and motor fixed block fixed connection, the motor fixed block passes through forked tail slider and forked tail spout sliding connection, the forked tail slider passes through the stop collar and is connected with the rotation of limit threaded rod.

Preferably, the limiting ratchet wheel is fixedly connected to the rotating shaft, the bottom end of the second limiting clamping block is located on the inner side of the top end of the limiting ratchet wheel, and the second limiting clamping block is connected with the limiting ratchet wheel in a clamping mode.

Preferably, the number of the first springs and the number of the limit stops are two, the top ends of the first springs are fixedly connected with the top end of the inner side of the limit box, and the bottom ends of the first springs are fixedly connected with the top ends of the two limit stops.

Preferably, a handle is arranged at one end, located outside the limiting box, of the second limiting clamping block, and anti-skidding lines are arranged on the outer side surface of the handle.

Preferably, the limiting slide block is in sliding connection with the limiting slide groove, the feed feeding port is connected with the limiting slide block in a clamping mode through a clamping groove, and one end, located on the inner side of the clamping groove, of the limiting slide block is an inclined plane.

Preferably, one end of the second spring is fixedly connected with the inner side of the limiting sliding groove, and the other end of the second spring is fixedly connected with the outer side of the limiting sliding block.

Compared with the prior art, the invention has the beneficial effects that:

(1) feed granulator unable adjustment base has guaranteed through having designed the forked tail slider and has slided in the forked tail spout is inside, has guaranteed that the motor fixed block can be fixed on feed granulator unable adjustment base top surface, rotates through the inside of having designed the spacing groove that limit threaded rod one end was seted up at the stop collar, and limit threaded rod rotates to take place to remove and can stimulate the forked tail slider and remove.

(2) The transmission motor is through having designed first spring promotion limit stop, has guaranteed that the spacing fixture block of second is under the condition that does not receive external force, and the spacing fixture block bottom of second can be in spacing ratchet inboard always and carry out the block, fixes the angle of ejection of compact tray, has guaranteed this device and can normal operating, can rotate around the pivot through having designed ejection of compact tray, can adapt to the wrapping bag of various heights, has guaranteed that the fodder can not scatter everywhere.

(3) Feed mouth has guaranteed through having designed spacing slider and draw-in groove block that feed mouth can be fixed when feed granulator main part is inside, has guaranteed through having designed spacing piece of drawing that the pulling spacing piece of drawing can drive spacing slider and remove, leaves inside the draw-in groove, through having designed this mechanism, can be very convenient fix and dismantle feed mouth, clears up feed granulator main part inside, prevents to block up

Drawings

FIG. 1 is a schematic view of the overall structure of the front surface of the present invention;

FIG. 2 is a schematic cross-sectional view of the spacing mechanism of the present invention;

FIG. 3 is a schematic side sectional view of the spacing mechanism of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2 at C;

FIG. 5 is an enlarged view of the structure of FIG. 1 at A according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 1 at B according to the present invention;

in the figure: 1. a feed granulator fixing base; 2. a drive motor; 3. a feed feeding port; 4. a feed granulator main body; 5. a discharge tray; 6. a motor fixing block; 7. a limit threaded rod; 8. a hole; 9. turning a handle; 10. a dovetail chute; 11. a dovetail slide block; 12. a limiting sleeve; 13. a limiting groove; 14. a first limiting clamping block; 15. a limiting box; 16. a rotating shaft; 17. a limiting ratchet wheel; 18. a second limiting clamping block; 19. a first spring; 20. a limit stop block; 21. a limiting chute; 22. limiting a pulling block; 23. a second spring; 24. a limiting slide block; 25. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution of a concentrated feed granulator: a concentrated feed granulator comprises a feed granulator fixing base 1, a limiting mechanism, a discharging mechanism and a cleaning mechanism, wherein the limiting mechanism comprises a transmission motor 2, the transmission motor 2 is arranged on one side of the top end surface of the feed granulator fixing base 1, a motor fixing block 6 is arranged at the joint of the transmission motor 2 and the feed granulator fixing base 1, the transmission motor 2 is fixedly connected to the top end surface of the motor fixing block 6, a dovetail chute 10 is arranged on one side of the bottom end surface of the motor fixing block 1, a dovetail slide block 11 is arranged on the bottom end surface of the motor fixing block 6, the dovetail slide block 11 is arranged in the dovetail chute 10, a limiting threaded rod 7 is arranged on one side of the dovetail slide block 11, a hole 8 is arranged on one side of the inner wall of the dovetail chute 10, one end of the limiting threaded rod 7 penetrates through the hole 8 and is arranged, limiting threaded rod 7 is provided with to change 9 in the outside one end of feed granulator unable adjustment base 1, and limiting threaded rod 7 is provided with stop collar 12 with 11 junctions of forked tail slider, and spacing groove 13 has been seted up to 12 side surfaces of stop collar, and the 7 other ends of limiting threaded rod are in inside the

spacing groove

13, and 7 other end surfaces of limiting threaded rod are provided with first limiting fixture block 14, and first limiting fixture block 14 is in inside the spacing groove 13.

In order to adjust the discharging angle of the discharging tray 5 conveniently and ensure that the feed can be packed into the packing bag without being scattered out, in the present embodiment, preferably, the discharging mechanism comprises the discharging tray 5, the discharging tray 5 is located at the other side of the feed granulator fixing base 1, a limiting box 15 is arranged at the joint of the discharging tray 5 and the feed granulator fixing base 1, one end of the discharging tray 5 is located inside the limiting box 15, a rotating shaft 16 is arranged on one side surface of the discharging tray 5 located inside the limiting box 15, the discharging tray 5 is rotationally connected with the feed granulator fixing base 1 through the rotating shaft 16, a limiting ratchet 17 is arranged on the outer side surface of the rotating shaft 16, a second limiting fixture block 18 is arranged on the top end surface of the limiting ratchet 17, one end of the second limiting fixture block 18 penetrates through the limiting box 15, first springs 19 are arranged on both sides of the second limiting fixture block 18 located inside the limiting box 15, and limiting stoppers 20 are, both limit stops 20 are fixedly connected to the outside of the limit stops 20.

In order to facilitate taking out the feed loading port 3 so as to clean the feed residues inside the feed granulator main body 4 and prevent blockage, in the embodiment, preferably, the cleaning mechanism comprises the feed granulator main body 4, the feed granulator main body 4 is fixedly connected to the top end surface of the feed granulator fixing base 1, the feed loading port 3 is arranged at the top end inside the feed granulator main body 4, both sides of the top end surface of the feed granulator main body 4 are provided with limiting sliding grooves 21, a limiting sliding block 24 is arranged inside the limiting sliding grooves 21, a second spring 23 is arranged on the outer side surface of the limiting sliding block 24, the second spring 23 is arranged inside the limiting sliding grooves 21, one side of the top end of the limiting sliding block 24 is provided with a limiting pulling block 22, one end of the limiting pulling block 22 penetrates through the limiting sliding grooves 21 and is positioned at the top end outside the feed granulator main body 4, the bottom end of the, the other end of the second spring 23 penetrates through the limiting sliding groove 21 and is located inside the clamping groove 25.

In order to facilitate the rotation of the limit threaded rod 7, the position of the limit threaded rod 7 can be moved, in the embodiment, preferably, an external thread is arranged on the surface of the outer side of the limit threaded rod 7, an internal thread is arranged on the inner side of the hole 8, and the limit threaded rod 7 and the hole 8 are connected in a screwed mode through threads.

For the convenience of being in the time of limiting threaded rod 7 removes, can stimulate the position removal of drive motor 2 to the elasticity degree of adjustment drive belt, in this embodiment, preferred, drive motor 2 passes through bolt and 6 fixed connection of motor fixed block, and motor fixed block 6 passes through forked

tail slider

11 and 10 sliding connection of forked tail spout, and forked tail slider 11 passes through

stop collar

12 and 7 rotation connections of limiting threaded rod.

In order to facilitate the second limiting clamping block 18 and the limiting ratchet 17 to be in a clamping connection state, the motor fixing block 6 can be fixed, and the motor fixing block 6 cannot rotate.

In order to facilitate that first spring 19 can promote second limit fixture block 18 and move down under the circumstances of not receiving external force, second limit fixture block 18 bottom is in the limit ratchet 17 inboard and carries out the block fixed, in this embodiment, preferably, first spring 19 all is provided with two with limit stop 20's quantity, two first spring 19 tops all with limit 15 inboard top fixed connection, two first spring 19 bottoms all with two limit stop 20 top fixed connection.

In order to facilitate the pulling of the second limiting clamping block 18 to move upwards and improve the anti-skid property, in this embodiment, preferably, a handle is disposed at one end of the second limiting clamping block 18, which is located outside the limiting box 15, and anti-skid grains are disposed on the outer side surface of the handle.

In order to facilitate fixing feed loading mouth 3 inside feed granulator main part 4, in this embodiment, preferred, limiting slide block 24 is sliding connection with limiting slide groove 21, and feed loading mouth 3 passes through draw-in groove 25 and is connected with limiting slide block 24 block, and limiting slide block 24 is in the inboard one end of draw-in groove 25 and sets up to the inclined plane.

In order to facilitate the situation that no external force is applied, under the action of the second spring 23, the second spring 23 pushes one end of the limiting sliding block 24 to be located inside the clamping groove 25, in this embodiment, preferably, one end of the second spring 23 is fixedly connected with the inner side of the limiting sliding groove 21, and the other end of the second spring 23 is fixedly connected with the outer side of the limiting sliding block 24.

The drive motor 2 of the present invention is model number YBX 3.

The working principle and the using process of the invention are as follows: after the device is installed, the position of a transmission motor 2 needs to be moved to adjust the tightness degree of a transmission belt, firstly, a rotating handle 9 is rotated, the rotating handle 9 rotates to drive a limit threaded rod 7 to rotate, threads are designed through the inner side of a hole 8, the position of the limit threaded rod 7 moves under the action of screwing of the threads, a limit sleeve 12 is designed through one end of a dovetail slide block 11, one end of the limit threaded rod 7 rotates inside a limit groove 13, the limit threaded rod 7 drives the dovetail slide block 11 to slide inside a dovetail slide groove 10 after moving, the dovetail slide block 11 moves to drive the transmission motor 2 at the top end of a motor fixing block 6 to move, the tightness depth of the transmission belt connected with the transmission motor 2 changes, after the transmission motor 2 is adjusted to a proper position, the rotating handle 9 is loosened, the dovetail slide block 11 slides inside the dovetail slide groove 10 through design, and the motor fixing block 6 can be fixed on the top end surface of a feed granulator, one end of the limit threaded rod 7 rotates in a limit groove 13 formed in a limit sleeve 12, and the limit threaded rod 7 rotates to move so as to pull the dovetail slide block 11 to move; when the angle degree of the discharging tray 5 needs to be adjusted, the handle on the surface of the top end of the limiting box 15 is pulled, the handle drives the limiting box 15 to move upwards, the limiting stops 20 on two sides of the second limiting fixture block 18 are driven to upwards abut against the first spring 19, the first spring 19 is stressed and tightened, the bottom end of the second limiting fixture block 18 leaves the inner side of the limiting ratchet 17, the discharging tray 5 is pushed up and down, and the discharging tray 5 rotates around the rotating shaft 16 to adjust the discharging angle. After the feed is adjusted to a proper angle, the handle is loosened, the first spring 19 does not bear force to push the limit stop 20 to move downwards, the limit stop 20 drives the second limit fixture block 18 to move downwards, the bottom end of the second limit fixture block 18 is positioned at the inner side of the top end of the limit ratchet 17 to fix the rotating shaft 16, so that the rotating shaft cannot rotate, the first spring 19 is designed to push the limit stop 20, the second limit fixture block 18 is guaranteed to be clamped at the inner side of the limit ratchet 17 under the condition that the second limit fixture block 18 is not stressed by external force, the angle of the discharge tray 5 is fixed, the normal operation of the feed adjusting device is guaranteed, the discharge tray 5 can rotate around the rotating shaft 16, the feed adjusting device can adapt to packaging bags with various heights, and the feed cannot scatter around; when the feed loading port 3 needs to be taken out of the interior of the feed granulator main body 4, when the interior of the feed granulator main body 4 is cleaned, the limiting pull blocks 22 on the two sides of the top end of the feed granulator main body 4 are firstly pulled to move outwards, the limiting pull blocks 22 drive the limiting slide blocks 24 in the limiting slide grooves 21 to slide, the second springs 23 are stressed to contract, one ends of the limiting slide blocks 24 leave the interior of the clamping grooves 25, the feed loading port 3 is taken out to clean the interior of the feed granulator main body 4, the limiting slide blocks 24 are clamped with the clamping grooves 25, the feed loading port 3 can be fixed in the feed granulator main body 4, the limiting pull blocks 22 are designed, the limiting slide blocks 22 are ensured to be pulled to drive the limiting slide blocks 24 to move and leave the interior of the clamping grooves 25, the feed loading port 3 can be conveniently fixed and detached through the design of the feed mechanism, the interior of the feed granulator main body 4 is cleaned, preventing clogging.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concentrated feed granulation machine, includes feed granulation machine unable adjustment base (1), stop gear, discharge mechanism and clearance mechanism, its characterized in that: the limiting mechanism comprises a transmission motor (2), the transmission motor (2) is arranged on one side of the top surface of the fixed base (1) of the feed granulator, a motor fixed block (6) is arranged at the joint of the transmission motor (2) and the fixed base (1) of the feed granulator, the transmission motor (2) is fixedly connected to the top surface of the motor fixed block (6), a dovetail sliding groove (10) is formed in one side of the bottom surface of the fixed base (1) of the motor fixed block (6), a dovetail sliding block (11) is arranged on the bottom surface of the motor fixed block (6), the dovetail sliding block (11) is arranged in the dovetail sliding groove (10), a limiting threaded rod (7) is arranged on one side of the dovetail sliding block (11), a hole (8) is formed in one side of the inner wall of the dovetail sliding groove (10), and one end of the limiting threaded rod (7) penetrates through the hole (8) and is arranged outside the fixed, spacing threaded rod (7) are provided with to change (9) in the outside one end of feed granulator unable adjustment base (1), spacing threaded rod (7) are provided with stop collar (12) with forked tail slider (11) junction, spacing groove (13) have been seted up to stop collar (12) side surface, spacing threaded rod (7) other end is in inside spacing groove (13), spacing threaded rod (7) other end surface is provided with first spacing fixture block (14), first spacing fixture block (14) are in inside spacing groove (13).

2. A concentrated feed granulator according to claim 1, characterized in that: the discharging mechanism comprises a discharging tray (5), the discharging tray (5) is arranged at the other side of the fixed base (1) of the feed granulator, a limiting box (15) is arranged at the joint of the discharging tray (5) and the fixed base (1) of the feed granulator, one end of the discharging tray (5) is arranged in the limiting box (15), a rotating shaft (16) is arranged on one side surface of the discharging tray (5) in the limiting box (15), the discharging tray (5) is rotatably connected with the fixed base (1) of the feed granulator through the rotating shaft (16), a limiting ratchet (17) is arranged on the outer side surface of the rotating shaft (16), a second limiting clamping block (18) is arranged on the top end surface of the limiting ratchet (17), one end of the second limiting clamping block (18) penetrates through the limiting box (15), first springs (19) are arranged on two sides of the second limiting clamping block (18) in the limiting box (15), two first spring (19) bottom surface all is provided with limit stop (20), two limit stop (20) equal fixed connection in limit stop (20) outside.

3. A concentrated feed granulator according to claim 1, characterized in that: the cleaning mechanism comprises a feed granulator main body (4), the feed granulator main body (4) is fixedly connected to the top end surface of a feed granulator fixing base (1), a feed feeding port (3) is arranged at the top end inside the feed granulator main body (4), limiting sliding grooves (21) are formed in two sides of the top end surface of the feed granulator main body (4), a limiting sliding block (24) is arranged inside the limiting sliding grooves (21), a second spring (23) is arranged on the outer side surface of the limiting sliding block (24), the second spring (23) is located inside the limiting sliding grooves (21), a limiting pulling block (22) is arranged on one side of the top end of the limiting sliding block (24), one end of the limiting pulling block (22) penetrates through the limiting sliding grooves (21) to be located at the top end of the outer side of the feed granulator main body (4), and a clamping groove (25) is formed in the bottom end of the outer side surface, the other end of the second spring (23) penetrates through the limiting sliding groove (21) and is located in the clamping groove (25).

4. A concentrated feed granulator according to claim 1, characterized in that: the outer thread has been seted up on limit threaded rod (7) outside surface, the internal thread has been seted up to hole (8) inboard, limit threaded rod (7) close with hole (8) soon through the screw thread and are connected.

5. A concentrated feed granulator according to claim 1, characterized in that: transmission motor (2) are through bolt and motor fixed block (6) fixed connection, motor fixed block (6) are through forked tail slider (11) and forked tail spout (10) sliding connection, forked tail slider (11) are rotated with limit threaded rod (7) through stop collar (12) and are connected.

6. A concentrated feed granulator according to claim 2, characterized in that: the limiting ratchet wheel (17) is fixedly connected to the rotating shaft (16), the bottom end of the second limiting clamping block (18) is located on the inner side of the top end of the limiting ratchet wheel (17), and the second limiting clamping block (18) is connected with the limiting ratchet wheel (17) in a clamping mode.

7. A concentrated feed granulator according to claim 2, characterized in that: the number of the first springs (19) and the limit stops (20) is two, the top ends of the first springs (19) are fixedly connected with the top end of the inner side of the limit box (15), and the bottom ends of the first springs (19) are fixedly connected with the top ends of the two limit stops (20).

8. A concentrated feed granulator according to claim 2, characterized in that: the handle is arranged at one end, located outside the limiting box (15), of the second limiting clamping block (18), and anti-skidding lines are arranged on the surface of the outer side of the handle.

9. A concentrated feed granulator according to claim 3, characterized in that: spacing slider (24) are sliding connection with spacing spout (21), fodder material loading mouth (3) are connected with spacing slider (24) block through draw-in groove (25), the one end that spacing slider (24) are in draw-in groove (25) inboard sets up to the inclined plane.

10. A concentrated feed granulator according to claim 3, characterized in that: one end of the second spring (23) is fixedly connected with the inner side of the limiting sliding groove (21), and the other end of the second spring (23) is fixedly connected with the outer side of the limiting sliding block (24).