CN214693892U

CN214693892U - Cutting, edging and chamfering integrated device for processing toughened glass

Info

Publication number: CN214693892U
Application number: CN202022921962.4U
Authority: CN
Inventors: 常永
Original assignee: Jiangsu Jinqiao Glass Technology Co ltd
Current assignee: Jiangsu Jinqiao Glass Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-11-12
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a toughened glass processing is with cutting, edging chamfer integrated device, including pushing equipment and the mechanism that gathers materials, the third extension board is fixed on the base, the up end of mobile station is rotated and is connected with the revolving rack, the mechanism that gathers materials is fixed on the right inner wall that bears the frame, the interior top that bears the frame is fixed with the pneumatic cylinder, the lower terminal surface of movable plate is fixed with the electronic flexible post of second, slide rail and the electronic flexible post of fourth, sliding connection has the slider in the slide rail, the bottom and the second of the electronic flexible post of fourth are supported the clamp plate and are connected. This toughened glass processing is with cutting, edging chamfer integrated device, after every location, cutting, the edging chamfer operation of accomplishing toughened glass on one side, toughened glass can rotate 90 degrees along with the layer board together, and later repeatedly above-mentioned operation, convenient and orderly location, cutting and the edging chamfer operation of accomplishing the toughened glass four sides, whole operation is high efficiency in succession, and degree of automation is high.

Description

Cutting, edging and chamfering integrated device for processing toughened glass

Technical Field

The utility model relates to a toughened glass processing technology field specifically is a toughened glass processing is with cutting, edging chamfer integrated device.

Background

The toughened glass belongs to safety glass, is actually prestressed glass, and in order to improve the strength of the glass, a chemical or physical method is generally used, the pressure stress is formed on the surface of the glass, and the surface stress is firstly counteracted when the glass bears external force, thereby improving the bearing capacity, enhancing the wind pressure resistance, the cold and heat resistance, the impact property and the like of the glass, it needs to be cut, and after the cutting operation is finished, the edging and chamfering operation needs to be carried out, therefore, the cutting, edging and chamfering integrated device is needed, the existing cutting, edging and chamfering integrated device is inconvenient to orderly and efficiently finish the cutting of four edges of materials and the edging and chamfering treatment, the material is inconvenient to be righted before being positioned and processed, the cutting effect is influenced by the over-deviation of the material position, and meanwhile, the cut materials are inconvenient to be gathered for processing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a toughened glass processing is with cutting, edging chamfer integrated device to solve the inconvenient orderly efficient cutting and the edging chamfer of accomplishing the material four sides of current cutting, edging chamfer integrated device that provide among the above-mentioned background art and handle, inconvenient rightting it before carrying out the location processing to the material, the material position is crossed partially can influence the cutting effect, inconvenient material that will cut down simultaneously concentrates on going on the problem handled.

In order to achieve the above object, the utility model provides a following technical scheme: a cutting, edging and chamfering integrated device for processing toughened glass, which comprises a material pushing mechanism and a material collecting mechanism,

the pushing mechanism is fixed on the right end face of the first support plate, the first support plate is fixed on the left side of the upper end face of the base, cushion blocks are fixed on the left side and the right side of the lower end face of the base, a support is fixed in the middle of the upper end face of the base, the top of the support is rotatably connected with a support plate, second support plates are fixed on the front side and the rear side of the upper end face of the base, the inner sides of the second support plates are connected with the correcting plate through second electric telescopic rods, a third support plate is arranged on the right side of the second support plate on the rear side, the third support plate is fixed on the base, the inner side of the third support plate is connected with the moving table through third electric telescopic rods, the upper end face of the moving table is rotatably connected with a rotating frame, and the top of the rotating frame is rotatably connected with an edging chamfering block;

the mechanism gathers materials, the mechanism of gathering materials is fixed on the right inner wall that bears the frame, and bears the frame and fix the right side at the base up end, the interior top that bears the frame is fixed with the pneumatic cylinder, and the downside of pneumatic cylinder is connected with the movable plate through the piston rod, the lower terminal surface of movable plate is fixed with the electronic flexible post of second, slide rail and the electronic flexible post of fourth, and the electronic flexible post of second and fourth are located the left and right sides of slide rail respectively, and the bottom and the first clamp plate that supports of the electronic flexible post of second are connected simultaneously, sliding connection has the slider in the slide rail, and the downside of slider is connected with the bearer frame through the electronic flexible post of third, and the inboard of bearer frame is fixed with through stud simultaneously and draws the cutter, the bottom and the second of the electronic flexible post of fourth are connected with the clamp plate.

Preferably, pushing equipment includes electric telescopic handle, removes frame, first electric telescopic post and suction pump, and electric telescopic handle fixes on the right-hand member face of first extension board, and electric telescopic handle's right-hand member is connected with removing the frame simultaneously, the downside of removing the interior top of frame is connected with the suction pump through first electric telescopic post.

Preferably, a motor is fixed in the support, and a supporting plate is rotatably connected to the upper side of the motor through a motor shaft.

Preferably, the righting plate and the second support plate form a telescopic structure through a second electric telescopic rod.

Preferably, the bottom of the mobile station is connected between the limiting plates in a sliding mode, and the limiting plates are fixed on the base.

Preferably, the interior top of mobile station is fixed with first motor, and the downside of first motor rotates and is connected with the revolving rack, the top internal fixation of revolving rack has the second motor, and the upside of second motor rotates and is connected with edging chamfer piece.

Preferably, the mechanism of gathering materials includes fourth electric telescopic handle, collects box, bolt and gyro wheel, and fourth electric telescopic handle fixes on bearing the right inner wall of frame, and fourth electric telescopic handle's left end is connected with the collection box through the bolt simultaneously, the collection box bottom left and right sides all is fixed with the gyro wheel.

Preferably, the first pressing plate and the second pressing plate respectively form a telescopic structure with the moving plate through a second electric telescopic column and a fourth electric telescopic column.

Preferably, a third motor is fixed on the rear side of the slide rail, the front side of the third motor is rotatably connected with a screw rod, and the screw rod is in threaded connection with the slide block.

Compared with the prior art, the beneficial effects of the utility model are that: the cutting, edging and chamfering integrated device for processing the toughened glass,

(1) after the positioning, cutting, edging and chamfering operations of one side of the toughened glass are finished, the toughened glass can rotate by 90 degrees along with the supporting plate, the operations can be repeated, the positioning, cutting, edging and chamfering operations of the four sides of the toughened glass can be conveniently and orderly finished, the whole operation is continuous and efficient, and the automation degree is high;

(2) after the tempered glass is placed on the supporting plate, the first pressing plate, the scribing cutter and the second pressing plate can move downwards along with the movable plate until the first pressing plate, the scribing cutter and the second pressing plate are close to the tempered glass, then the tempered glass can be straightened by the straightening plate, after the tempered glass is straightened, the straightening plate moves back to the original state, then the tempered glass can be pushed rightwards to a proper position by the material pushing mechanism, and the positioning operation can be conveniently finished;

(3) before the toughened glass is cut, the toughened glass needs to be tightly abutted and fixed by using a first abutting plate, after the cutting of the toughened glass is finished by using a cutting knife, the toughened glass can be abutted and disconnected by using a second abutting plate, at the moment, the cut toughened glass falls into a collecting box, after one-time material collecting operation is finished, the collecting box moves to the right side of a rotating frame rightwards, and the subsequent edging and chamfering operation is prevented from being influenced;

(4) after the cutting processing of one side of the toughened glass is finished, the first pressing plate, the scribing cutter and the second pressing plate move upwards to the upper side of the rotating frame, the toughened glass is pushed rightwards by the aid of the material pushing mechanism to be tightly abutted on the edging chamfering block, then the first pressing plate is tightly abutted to fix the toughened glass, and edging chamfering operation can be finished by the aid of the edging chamfering block.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front view of the present invention;

fig. 3 is a schematic view of the rear view cross-sectional structure of the present invention;

FIG. 4 is a left side view of the structure of the present invention;

fig. 5 is a schematic top view of the cross-sectional structure of the present invention;

fig. 6 is the schematic view of the connection structure of the movable plate, the first pressing plate, the slide rail, the screw rod, the slider and the second pressing plate.

In the figure: 1. a base, 2, a cushion block, 3, a first support plate, 4, a pushing mechanism, 401, an electric telescopic rod, 402, a moving frame, 403, a first electric telescopic column, 404, a suction pump, 5, a support, 6, a motor, 7, a motor shaft, 8, a support plate, 9, a second support plate, 10, a second electric telescopic rod, 11, a righting plate, 12, a third support plate, 13, a third electric telescopic rod, 14, a moving platform, 15, a limit plate, 16, a first motor, 17, a rotating frame, 18, a second motor, 19, an edge grinding chamfering block, 20, a bearing frame, 21, a material collecting mechanism, 2101, a fourth electric telescopic rod, 2102, a collecting box, 2103, a bolt, 2104, a roller, 22, a hydraulic cylinder, 23, a piston rod, 24, a moving plate, 25, a second electric telescopic column, 26, a first pressing plate, 27, a sliding rail, 28, a third motor, 29, a screw rod, 30, a sliding block, 31, a third electric telescopic column, 32. bearing frame, 33, marking cutter, 34, stud, 35, fourth electronic flexible post, 36, second are supported the clamp plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a cutting, edging and chamfering integrated device for processing toughened glass is disclosed, as shown in figures 1 and 2, a material pushing mechanism 4 is fixed on the right end face of a first support plate 3, the first support plate 3 is fixed on the left side of the upper end face of a base 1, cushion blocks 2 are fixed on the left side and the right side of the lower end face of the base 1, the material pushing mechanism 4 comprises an electric telescopic rod 401, a moving frame 402, a first electric telescopic column 403 and a suction pump 404, the electric telescopic rod 401 is fixed on the right end face of the first support plate 3, the right end of the electric telescopic rod 401 is connected with the moving frame 402, the lower side of the inner top of the moving frame 402 is connected with the suction pump 404 through the first electric telescopic column 403, the toughened glass is placed on a support plate 8, after the toughening glass is straightened by utilizing a straightening plate 11, the first electric telescopic column 403 extends, the suction pump 404 moves along with the moving frame 402, and after the moving frame 402 contacts the toughened glass, the suction pump 404 moves downward under the extension action of the first electric telescopic column 403 and adsorbs the tempered glass, and then the tempered glass moves stably rightward under the pushing action of the moving frame 402, so that the positioning operation is facilitated.

According to the drawings of fig. 1, 2 and 3, a bracket 5 is fixed in the middle of the upper end surface of a base 1, the top of the bracket 5 is rotatably connected with a supporting plate 8, a motor 6 is fixed in the bracket 5, the upper side of the motor 6 is rotatably connected with the supporting plate 8 through a motor shaft 7, after one side of the toughened glass is processed, the supporting plate 8 can rotate under the action of the motor 6 and the motor shaft 7 so as to drive the toughened glass to rotate, the four sides of the toughened glass are conveniently processed, second supporting plates 9 are fixed on the front side and the rear side of the upper end surface of the base 1, the inner sides of the second supporting plates 9 are connected with a straightening plate 11 through second electric telescopic rods 10, meanwhile, a third supporting plate 12 is arranged on the right side of the second supporting plate 9 on the rear side, the straightening plate 11 forms a telescopic structure with the second supporting plates 9 through the second electric telescopic rods 10, after the toughened glass is placed on the supporting plate 8, the straightening plate 11 can move under the extension action of the second electric telescopic rods 10, the two righting plates 11 are close to each other, so that the tempered glass is conveniently righted.

Referring to fig. 1, 2, 3 and 4, a third support plate 12 is fixed on a base 1, the inner side of the third support plate 12 is connected with a mobile station 14 through a third electric telescopic rod 13, the bottom of the mobile station 14 is slidably connected between limiting plates 15, the limiting plates 15 are fixed on the base 1, the mobile station 14 can slide back and forth under the telescopic action of the third electric telescopic rod 13, an edging chamfering block 19 rotates and moves forward or backward while rotating, so that the edging operation is convenient, the limiting plates 15 play a role in limiting during the forward and backward sliding of the mobile station 14, the upper end surface of the mobile station 14 is rotatably connected with a rotating frame 17, the top of the rotating frame 17 is rotatably connected with the edging chamfering block 19, the inner top of the mobile station 14 is fixed with a first motor 16, the lower side of the first motor 16 is rotatably connected with the rotating frame 17, a second motor 18 is fixed in the top of the rotating frame 17, and the upper side of the second motor 18 is rotatably connected with the edging chamfering block 19, edging chamfer piece 19 removes behind toughened glass's edge, and revolving rack 17 can rotate under second motor 18's effect to drive edging chamfer piece 19 and rotate, edging chamfer piece 19 self can be rotatory under second motor 18's rotation effect simultaneously, conveniently carries out the chamfer operation.

According to fig. 1, 2, 3 and 5, the collecting mechanism 21 is fixed on the right inner wall of the carrier 20, the carrier 20 is fixed on the right side of the upper end surface of the base 1, the collecting mechanism 21 comprises a fourth electric telescopic rod 2101, a collecting box 2102, a bolt 2103 and a roller 2104, the fourth electric telescopic rod 2101 is fixed on the right inner wall of the carrier 20, the left end of the fourth electric telescopic rod 2101 is connected with the collecting box 2102 through the bolt 2103, the rollers 2104 are fixed on the left side and the right side of the bottom of the collecting box 2102, the collecting box 2102 collects the cut waste materials, after each collecting operation is completed, the collecting box 2102 needs to move to the right side of the rotating frame 17 under the contraction effect of the fourth electric telescopic rod 2101, the influence of the use of the subsequent rotating frame 17 by the collecting box 2102 is avoided, and the roller 2104 plays an auxiliary role in the process of moving the collecting box 2102 left and right.

As shown in fig. 1, 2, 3 and 6, a hydraulic cylinder 22 is fixed at the top of the inside of the bearing frame 20, the lower side of the hydraulic cylinder 22 is connected to a moving plate 24 through a piston rod 23, a second electric telescopic column 25, a slide rail 27 and a fourth electric telescopic column 35 are fixed at the lower end surface of the moving plate 24, the second electric telescopic column 25 and the fourth electric telescopic column 35 are respectively located at the left and right sides of the slide rail 27, the bottom of the second electric telescopic column 25 is connected to a first pressing plate 26, the first pressing plate 26 and the second pressing plate 36 respectively form a telescopic structure with the moving plate 24 through the second electric telescopic column 25 and the fourth electric telescopic column 35, before cutting the tempered glass, the first pressing plate 26 needs to move downward under the extending action of the second electric telescopic column 25 to facilitate pressing and fixing the tempered glass, after the cutting process by the scribing cutter 33, the second pressing plate 36 moves downwards under the extending action of the fourth electric telescopic column 35 to press and break the toughened glass conveniently, the slide block 30 is connected in the slide rail 27 in a sliding way, the lower side of the slide block 30 is connected with the bearing frame 32 through the third electric telescopic column 31, meanwhile, a scribing cutter 33 is fixed on the inner side of the bearing frame 32 through a stud bolt 34, a third motor 28 is fixed on the rear side of the slide rail 27, a screw rod 29 is rotatably connected on the front side of the third motor 28, meanwhile, the screw rod 29 is connected with the slide block 30 in a threaded manner, after the scribing cutter 33 moves downwards and approaches the horizontal height of the lower end face of the toughened glass, the screw 29 can rotate under the action of the third motor 28, at this time, the sliding block 30 can slide forwards or backwards under the limit action of the sliding rail 27 and the screw 29, thereby drive the rule cutter 33 and slide forward or backward, conveniently carry out the rule and cut the processing to toughened glass, the bottom and the second of fourth electronic flexible post 35 are supported the clamp plate 36 and are connected.

The working principle of the embodiment is as follows: when the cutting, edging and chamfering integrated device for processing toughened glass is used, the device is firstly placed at a required place and is connected to an external power supply, the cushion block 2 plays a role of supporting the device, after the toughened glass is placed on the supporting plate 8, the hydraulic cylinder 22 is started, the hydraulic cylinder 22 drives the piston rod 23 to extend, the first pressing plate 26, the scribing cutter 33 and the second pressing plate 36 can move downwards along with the moving plate 24 until the first pressing plate 26, the scribing cutter 33 and the second pressing plate 36 are close to the toughened glass, the second electric telescopic rod 10 is started, the second electric telescopic rod 10 extends, the two centralizing plates 11 are close to each other so as to centralize the toughened glass, then the centralizing plates 11 move back to the original position under the contraction action of the second electric telescopic rod 10, then the first electric telescopic column 403 is started, the suction pump 404 moves towards the right along with the moving frame 402, after the moving frame 402 contacts the left end face of the toughened glass, the first electric telescopic column 403 is started, the first electric telescopic column 403 extends, the suction pump 404 moves downwards and contacts the upper end face of the toughened glass, after the suction pump 404 is started, the suction pump 404 adsorbs the toughened glass, then the moving frame 402 moves rightwards continuously to push the toughened glass to move rightwards to a proper position, then the second electric telescopic column 25 is started, the second electric telescopic column 25 extends to drive the first pressing plate 26 to move downwards to tightly fix the toughened glass, then the third electric telescopic column 31 is started, the third electric telescopic column 31 extends, the scribing cutter 33 moves downwards along with the bearing frame 32 to a horizontal height close to the lower end face of the toughened glass, the third motor 28 is started, the third motor 28 drives the screw 29 to rotate, the slide block 30 slides forwards or backwards under the limiting action of the slide rail 27 and the screw 29, thereby driving the scribing cutter 33 to move forwards or backwards, after the scribing cutter 33 finishes the scribing treatment of the toughened glass, starting the fourth electric telescopic column 35, extending the fourth electric telescopic column 35, thereby driving the second pressing plate 36 to move downwards, thereby pressing off the toughened glass, the toughened glass for cutting the toughened glass falls into the collecting box 2102, after starting the fourth electric telescopic rod 2101, contracting the fourth electric telescopic rod 2101, moving the collecting box 2102 to the right side of the rotating frame 17 under the auxiliary action of the roller 2104, thereby avoiding influencing the subsequent edging and chamfering operations, after moving the first pressing plate 26, the scribing cutter 33 and the second pressing plate 36 upwards to the upper side of the rotating frame 17, then pushing the toughened glass rightwards by using the material pushing mechanism 4 until the toughened glass is pressed against the edging chamfer block 19, then starting the third electric telescopic rod 13, extending the third electric telescopic rod 13, moving the moving platform 14 linearly moves forwards under the limiting action of the limiting plate 15, meanwhile, the edging chamfering block 19 rotates under the action of the second motor 18, so that edging operation is performed, after the edging chamfering block 19 moves to the corner of the toughened glass, the rotating frame 17 rotates under the action of the second motor 18 to drive the edging chamfering block 19 to rotate, meanwhile, the edging chamfering block 19 rotates, chamfering operation is conveniently performed, after edging and chamfering processing on one side of the toughened glass is completed, the suction pump 404 releases the toughened glass to move upwards and moves to the original position along with the moving frame 402 leftwards, the operations are repeated, positioning, cutting and edging and chamfering processing on four sides of the toughened glass are conveniently and orderly completed, the collecting box 2102 can be taken out after the operation is completed and the bolt 2103 is pulled out, waste materials in the collecting box can be conveniently and intensively processed, and contents which are not described in detail in the specification belong to the prior art which is well known by a person skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a toughened glass processing is with cutting, edging chamfer integrated device, includes pushing equipment (4) and the mechanism (21) that gathers materials, its characterized in that:

the pushing device (4) is fixed on the right end face of the first support plate (3), the first support plate (3) is fixed on the left side of the upper end face of the base (1), the left side and the right side of the lower end face of the base (1) are respectively fixed with the cushion block (2), the support (5) is fixed in the middle of the upper end face of the base (1), the top of the support (5) is rotatably connected with the support plate (8), the second support plates (9) are fixed on the front side and the rear side of the upper end face of the base (1), the inner sides of the second support plates (9) are connected with the straightening plate (11) through the second electric telescopic rods (10), the right side of the second support plate (9) on the rear side is provided with the third support plate (12), the third support plate (12) is fixed on the base (1), and the inner sides of the third support plates (12) are connected with the moving platform (14) through the third electric telescopic rods (13), the upper end surface of the mobile station (14) is rotatably connected with a rotating frame (17), and the top of the rotating frame (17) is rotatably connected with an edging chamfer block (19);

aggregate mechanism (21), aggregate mechanism (21) is fixed on the right inner wall of bearing frame (20), and bears frame (20) and fix the right side at base (1) up end, the interior top of bearing frame (20) is fixed with pneumatic cylinder (22), and the downside of pneumatic cylinder (22) is connected with movable plate (24) through piston rod (23), the lower terminal surface of movable plate (24) is fixed with second electric telescopic column (25), slide rail (27) and fourth electric telescopic column (35), and second electric telescopic column (25) and fourth electric telescopic column (35) are located the left and right sides of slide rail (27) respectively, and the bottom of second electric telescopic column (25) is connected with first clamp plate (26) that supports simultaneously, sliding connection has slider (30) in slide rail (27), and the downside of slider (30) is connected with bearing frame (32) through third electric telescopic column (31), meanwhile, the scribing cutter (33) is fixed on the inner side of the bearing frame (32) through a stud bolt (34), and the bottom of the fourth electric telescopic column (35) is connected with the second pressing plate (36).

2. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: the pushing equipment (4) comprises an electric telescopic rod (401), a moving frame (402), a first electric telescopic column (403) and a suction pump (404), the electric telescopic rod (401) is fixed on the right end face of the first support plate (3), the right end of the electric telescopic rod (401) is connected with the moving frame (402), and the lower side of the inner top of the moving frame (402) is connected with the suction pump (404) through the first electric telescopic column (403).

3. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: a motor (6) is fixed in the bracket (5), and the upper side of the motor (6) is rotatably connected with a supporting plate (8) through a motor shaft (7).

4. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: the righting plate (11) and the second support plate (9) form a telescopic structure through a second electric telescopic rod (10).

5. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: the bottom of the mobile station (14) is connected between the limiting plates (15) in a sliding mode, and the limiting plates (15) are fixed on the base (1).

6. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: the interior top of mobile station (14) is fixed with first motor (16), and the downside of first motor (16) rotates and is connected with revolving rack (17), the top internal fixation of revolving rack (17) has second motor (18), and the upside rotation of second motor (18) is connected with edging chamfer piece (19).

7. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: the collecting mechanism (21) comprises a fourth electric telescopic rod (2101), a collecting box (2102), a bolt (2103) and rollers (2104), the fourth electric telescopic rod (2101) is fixed on the right inner wall of the bearing frame (20), meanwhile, the left end of the fourth electric telescopic rod (2101) is connected with the collecting box (2102) through the bolt (2103), and the rollers (2104) are fixed on the left side and the right side of the bottom of the collecting box (2102).

8. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: the first pressing plate (26) and the second pressing plate (36) respectively form a telescopic structure with the moving plate (24) through a second electric telescopic column (25) and a fourth electric telescopic column (35).

9. The cutting, edging and chamfering integrated device for processing the toughened glass according to claim 1, which is characterized in that: a third motor (28) is fixed on the rear side of the sliding rail (27), the front side of the third motor (28) is rotatably connected with a screw rod (29), and meanwhile, the screw rod (29) is in threaded connection with a sliding block (30).