CN213131864U

CN213131864U - Billiard ball placing machine capable of automatically distributing and placing billiards

Info

Publication number: CN213131864U
Application number: CN202021956561.6U
Authority: CN
Inventors: 魏斯偲; 魏倩倩; 赵仕海; 魏希富
Original assignee: Shandong Weishi Intelligent Technology Co ltd
Current assignee: Shandong Weishi Intelligent Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-05-07
Anticipated expiration: 2030-09-09

Abstract

The utility model belongs to the field of billiard ball separating and arranging machines, in particular to a billiard ball arranging machine capable of automatically separating and arranging billiards, which comprises a billiard ball separating device (1) and a billiard ball arranging device, wherein the billiard ball separating device (1) comprises a bag opening track (11), a billiard blocking plate (12), a billiard ball separating device (13), a white ball separating port (14), a sub-ball separating port (15) and a white ball picking port (16), and the billiard ball separating device (13) comprises a side plate (131) with a C-shaped cross section and an inclined base (132); compared with the prior art, the utility model discloses automatic ball separating and ball placing's billiard ball pendulum ball machine (1) utilizes C type billiard ball separator to rotate horizontally and separate the billiard ball with billiard ball center vertical axis as the center axis, and the resistance is little and the rotation is flexible when rotating and separating the billiard ball; (2) the tray lifting and telescoping device in the ball swinging device adopts a synchronous belt and a synchronous belt wheel to transmit through a motor, so that the cost is low, the noise is low, and the speed is high.

Description

Billiard ball placing machine capable of automatically distributing and placing billiards

Technical Field

The patent of the utility model belongs to the technical field of billiard ball separating and placing machine, concretely relates to automatic billiard ball separating and placing machine

Background

Billiard sports are common in China, ball rooms are more visible everywhere, and the number of billiard tables is huge. In recent years, a small number of automatic ball placing products appear on the market to reduce service staff required in a ball room, but the L-shaped ball poking plate, the three-blade ball poking plate and the cross ball poking plate of the ball distributing device of the existing automatic ball placing machine separate white balls and sub-balls in a vertical turning mode, so that the resistance is a little bit and the operation is relatively complex when the white balls are turned; the existing tray lifting device adopts gears and lead screws to transmit through a motor, so that the cost is high, the noise is large, and the relative speed is slow.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic billiard ball machine of dividing ball and pendulum ball to foretell problem.

In order to achieve the above object, the utility model discloses a technical scheme be: a billiard ball arranging machine capable of automatically distributing and arranging balls comprises a ball distributing device and a ball arranging device, wherein the ball distributing device comprises a bag opening track, a ball distributing device, a white ball separating opening, a sub-ball separating opening and a white ball picking opening, the ball distributing device comprises a side plate with a C-shaped cross section and an inclined base, the base is in a cylindrical shape with a curved surface being obliquely cut, and one end of the base with a large height is fixedly connected with the inner surface of the side plate; an illuminating lamp and a camera are arranged above the ball distributor, and the output end of the camera is electrically connected with a control system; after the ball distributor rotates horizontally at different angles, the openings of the C-shaped side plates respectively face the white ball separating port and the subsphere separating port; the outer side of the white ball separation port is connected with a white ball picking port, a sub ball track is connected with the sub ball separation port, and a sub ball enters the ball arranging device through the sub ball track.

Preferably, a ball blocking plate is arranged at the joint of the bag opening track and the ball distributor, and a billiard detecting sensor is arranged on one side, far away from the ball distributor, of the ball blocking plate.

Preferably, the ball blocking plate is limited or released by an upper telescopic electromagnet.

Preferably, the horizontal rotation of the ball distributor and the ball blocking plate is driven by an outer motor respectively.

Preferably, the ball swinging device comprises an L-shaped arm, a tray assembly and a follower arm, and the L-shaped arm can drive the follower arm and the tray assembly to turn over; the tray assembly comprises a billiard basket, a frame and a tray, and the billiards basket and the tray are matched to fix the billiards; the tray is connected with the frame in a sliding manner; the tray assembly is arranged on one side of the trailing arm through two supporting plates and two diagonal bracing rods, and the supporting plates and the diagonal bracing rods are respectively symmetrically arranged on two sides of the frame; the supporting plate is connected with the trailing arm in a sliding manner, and two ends of the diagonal bracing rod are respectively hinged with the tray assembly and the trailing arm; under the matching of the supporting plate and the diagonal bracing rod, the tray assembly can be parallel or vertical to the trailing arm; the follower arm is connected with the L-shaped arm in a sliding mode.

Preferably, the following arm and the L-shaped arm are connected in a sliding manner in a specific manner: the inner side of the L-shaped arm is provided with a first guide rail, the outer edges of two sides of the follower arm are provided with a first sliding block, and the follower arm can slide in the first guide rail inside the L-shaped arm through the first sliding block.

Preferably, the driving force for the follower arm to slide on the inner side of the L-shaped arm is provided by a telescopic motor, and the telescopic motor is fixedly connected to one end of the follower arm in the length direction and is positioned on one side of the tray assembly; an output shaft of the telescopic motor is connected with a first driving wheel, and the first driving wheel is arranged on one side, far away from the tray assembly, of the follower arm; the driving wheel one outside meshes with the hold-in range one, the one end of keeping away from the driving wheel one along with from armlength direction is equipped with from driving wheel one, follow driving wheel one and driving wheel one, hold-in range one cooperation, hold-in range one length direction department is fixed on the crossbeam of L type arm through buckle one.

Preferably, the tray assembly can be parallel or perpendicular to the follower arm in the following way: the driving force for changing the direction of the tray assembly is provided by a lifting motor, and the lifting motor is close to a telescopic motor; the lifting motor is respectively connected with a second driving wheel through output shafts on two sides, the second driving wheel is positioned on one side of the pallet assembly on the follower arm, and the outer side of the second driving wheel is meshed with a second synchronous belt; driven wheels II are arranged on two sides of one end, far away from the lifting motor and the driving wheel II, of the follower arm in the width direction, and the driven wheels II are matched with the driving wheel II and the synchronous belt II; the synchronous belt II is provided with a second buckle, the second buckle is arranged on a supporting plate, and a second sliding block is arranged below the supporting plate; two sides of the follower arm are provided with second guide rails, and the second sliding blocks can be matched with the second guide rails.

Preferably, the tray is connected with the frame in a sliding mode through a third sliding block and a third guide rail.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

compared with the prior art, the utility model discloses automatic billiard ball pendulum ball machine of branch ball and pendulum ball, (1) utilize C type billiard ball separator to use the central vertical axis of billiard ball as the center pin horizontal rotation separation billiard ball, the resistance is little and rotate in a flexible way when rotating separation billiard ball, can save a telescopic electro-magnet, also can replace L type to dial the ball board, three-leaf type dials the ball board or cross and dials the work of ball board to accomplish the separation billiard ball, and it is relatively more laborsaving when the white ball of upset; (2) the tray lifting and telescoping device in the ball swinging device adopts a synchronous belt and a synchronous belt wheel to transmit through a motor, so that the cost is low, the noise is low, and the speed is high.

Drawings

To more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for the description of the embodiment will be briefly introduced below, fig. 1 is a schematic diagram of a ball distributing device of a billiard ball arranging machine for automatically distributing and arranging the ball provided in embodiment 1, fig. 2 is a schematic diagram of a ball distributing device of a billiard ball arranging machine for automatically distributing and arranging the ball provided in embodiment 1, fig. 3 is a schematic diagram of a ball distributing device of a billiard ball arranging machine for automatically distributing and arranging the ball, fig. 4 is a schematic diagram of an L-shaped arm in a ball arranging device before arranging the ball on a billiard table surface, fig. 5 is a state diagram when a tray assembly is perpendicular to a follower arm, fig. 6 is a schematic diagram of a structure of a tray assembly, fig. 7 is a structure diagram of a side where the tray assembly is installed on the follower arm, fig. 8 is a structure diagram of a second synchronous belt and a second buckle and a support plate, fig. 9 is a structure diagram of a side where the follower arm is far from the tray assembly, fig. 10, fig. 11 is a schematic diagram of a first synchronous belt fixed on a beam of an L-shaped arm through a first fastener.

1-ball separating device, 2-L-shaped arm, 3-tray assembly, 4-follower arm, 11-bag opening rail, 12-ball blocking plate, 121-telescopic electromagnet, 13-ball separating device, 131-side plate, 132-base, 14-white ball separating port, 15-sub-ball separating port, 16-white ball picking port, 17-illuminating lamp, 18-camera, 19-billiard detecting sensor, 31-billiard basket, 32-tray, 33-frame, 41-lifting motor, 42-synchronous belt two, 43-buckle two, 44-telescopic motor, 45-supporting plate, 46-driving wheel one, 47-synchronous belt one, 48-beam, 49-diagonal bracing rod and 50-buckle one.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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. In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "counterclockwise", "clockwise", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The utility model is further described with reference to the attached figures 1-11, and the billiard ball placing machine capable of automatically separating and placing the billiards comprises a ball separating device 1 and a ball placing device. As shown in fig. 1 and 2, the ball distributing device 1 includes a bag opening rail 11, a ball blocking plate 12, a ball distributor 13, a white ball separating port 14, a sub-ball separating port 15 and a white ball picking port 16, the ball distributor 13 (as shown in fig. 3) includes a side plate 131 with a C-shaped cross section and an inclined base 132, the base 132 is in a cylindrical shape with a curved surface being chamfered, and one end of the base 132 with a large height is fixedly connected with the inner surface of the side plate 131.

As shown in fig. 1 and 2, an illuminating lamp 17 and a camera 18 are arranged above the ball distributor 13, and the output end of the camera 18 is electrically connected with the control system. The control system includes software for identifying and analyzing colors, a programmable controller, etc.

As shown in fig. 1 and 2, two surfaces of the peripheral side wall of the rectangular parallelepiped where the ball divider 13 is located are solid plates, and the other two surfaces are a white ball separation port 14 and a subsphere separation port 15. After the ball distributor 13 rotates horizontally by different angles, the openings of the C-shaped side plate 131 respectively face the white ball separating opening 14 and the sub-ball separating opening 15; after the ball distributor 13 rotates clockwise and horizontally by 90 degrees, the opening of the C-shaped side plate 131 faces the white ball separation opening; after the ball distributor 13 rotates horizontally by 180 ° counterclockwise, the opening of the C-shaped side plate 131 faces the sub-ball separating opening 15.

As shown in fig. 1 and 2, a white ball pick-up port 16 is connected to the outer side of the white ball separating port 14, a sub ball track is connected to the lower part of the sub ball separating port 15, and the sub ball enters the ball placing device through the sub ball track.

As shown in fig. 1, a ball blocking plate 12 is arranged at the joint of the pocket opening rail 11 and the ball distributor 13, and a billiards detection sensor 19 (ultrasonic distance sensor) is arranged on one side of the ball blocking plate 12 far away from the ball distributor 13.

As shown in fig. 1, the ball retainer 12 is restricted or released by an upper retractable electromagnet 121 (a direct current retractable electromagnet).

As shown in fig. 1 and 2, the horizontal rotations of the ball divider 13 and the ball retainer 12 are driven by motors on the outer sides, respectively.

6 ball distributing devices 1 are required to be arranged on a billiard table, 3 balls on each side form a group, the two groups are formed, and the positions of the white ball outlet openings of the two groups are in antisymmetric

The working principle of the ball separating device 1 is as follows: the billiards freely fall to the tail end of the bag opening track, a billiard blocking plate is fixed by a telescopic electromagnet and blocks the billiards, a billiard detection sensor detects whether the billiards exist, the telescopic electromagnet is electrified after the billiards are detected to remove the limit fixation of the billiard blocking plate, the billiard blocking plate is reversed to allow one billiard to pass through and enter a billiard separator, and then the billiard blocking plate and the telescopic electromagnet return to continue blocking the billiards; the light is further turned on, the billiards in the ball separating device are photographed by the camera and analyzed and recognized by the control system, if the billiards are white balls, the motor drives the ball separating device to horizontally rotate 90 degrees clockwise, the opening of the C-shaped side plate faces the white ball separating port, the white balls enter the white ball picking port, a hitter can conveniently take out the white ball picking port, and if the billiards are other subspheres, the motor drives the ball separating device to horizontally rotate 180 degrees anticlockwise and freely roll into the subsphere track.

The ball swinging device comprises an L-shaped arm 2, a tray assembly 3 and a follower arm 4, wherein the L-shaped arm 2 can drive the follower arm 4 and the tray assembly 3 to turn over (one side of the L-shaped arm 2, which is far away from the follower arm 4, is connected with the power output shaft and can rotate under the drive of the power output shaft); fig. 4 shows the shape of the L-shaped arm 2 before the ball placing machine of the present invention places the ball on the billiard table surface, at this time, the tray 32 drags the billiard ball in the billiard basket 31, and the next time, the tray 32 slides the billiard ball to fall on the billiard table surface.

As shown in fig. 6, the tray assembly 3 includes a billiard basket 31, a frame 33 and a tray 32, and the billiard basket 31 and the tray 32 cooperate to fix billiards; the tray 32 is slidably connected to the frame 33. The tray 32 is connected with the frame 33 in a sliding mode through a third sliding block and a third guide rail.

As shown in fig. 5, 8, 9 and 10, the tray assembly 3 is installed on one side of the trailing arm 4 through two supporting plates 45 and two diagonal bracing rods 49, and the supporting plates 45 and the diagonal bracing rods 49 are respectively installed on two sides of the frame 33 symmetrically; the supporting plate 45 is connected with the trailing arm 4 in a sliding manner, and two ends of the diagonal bracing rod 49 are respectively hinged with the tray assembly 3 and the trailing arm 4; the tray assembly 3 can be parallel or perpendicular to the trailing arm 4 by the cooperation of the support plate 45 and the diagonal tension support rod 49.

The follower arm 4 is connected with the L-shaped arm 2 in a sliding way. The following arm 4 and the L-shaped arm 2 are connected in a sliding mode in a specific mode:

the inner side of the L-shaped arm 2 is provided with a first guide rail, the outer edges of two sides of the follower arm 4 are provided with a first sliding block, and the follower arm 4 can slide in the first guide rail inside the L-shaped arm 2 through the first sliding block.

As shown in fig. 7 and 9, the driving force of the follower arm 4 sliding inside the L-shaped arm 2 is provided by a telescopic motor 44, and the telescopic motor 44 is fixedly connected to one end of the follower arm 4 in the length direction and is positioned at one side of the tray assembly 3; an output shaft of the telescopic motor 44 is connected with a first driving wheel 46, and the first driving wheel 46 is arranged on one side, far away from the tray assembly 3, of the follower arm 4; the outer side of the first driving wheel 46 is meshed with a first synchronous belt 47, a first driven wheel is arranged at one end, far away from the first driving wheel 46, of the following arm 4 in the length direction, and the first driven wheel is matched with the first driving wheel 46 and the first synchronous belt 47; one position in the length direction of the first timing belt 47 (only one position on the first annular timing belt 47) is fixed on a cross beam 48 of the L-shaped arm 2 through a snap fastener 50, as shown in FIG. 11.

The tray assembly 3 can be implemented in a manner parallel or perpendicular to the follower arm 4 as follows:

as shown in fig. 7 and 8, the driving force for changing the orientation of the tray assembly 3 is provided by the lifting motor 41, and the lifting motor 41 is adjacent to the telescopic motor 44; the lifting motor 41 is respectively connected with a second driving wheel through output shafts at two sides, the second driving wheel is positioned at one side of the tray assembly 3 on the follower arm 4, and the outer side of the second driving wheel is meshed with a second synchronous belt 42; two driven wheels II are arranged on two sides of one end, far away from the lifting motor 41 and the driving wheel II, of the follower arm 4 in the width direction, and the driven wheels II are matched with the driving wheel II and the synchronous belt II 42; the second synchronous belt 42 is provided with a second buckle 43, the second buckle 43 is installed on the supporting plate 45, and a second sliding block is arranged below the supporting plate 45; two sides of the surface of the follower arm 4 are provided with a second guide rail, and the second sliding block can be matched with the second guide rail.

As shown in fig. 8 and 9, driven wheels two are arranged on two sides of the follower arm 4 in the width direction of one end far away from the lifting motor 41 and the driving wheel two, and the driven wheels two are matched with the driving wheel two and the synchronous belt 42.

The working principle of the ball swinging device is as follows: the billiards enter the billiard ball placing device from the billiard ball track and then enter the billiard ball basket, and then the tray slides and is matched with the billiard ball basket to fix the billiards; the L-shaped arm extends out from the lower part of the table top, the follower arm is vertical, and the tray assembly is vertical to the follower arm (as shown in figure 5); next, the lifting motor drives the tray assembly to be changed into a shape parallel to the follower arm (as shown in fig. 10); next, the L-shaped arm drives the follower arm to turn over (as shown in figure 4); the telescopic motor drives the following arm to horizontally move towards the billiard table; the tray assembly is close to the billiard table surface, the tray slides, and billiards fall to the table surface from the billiard basket; the ball placing device operates reversely and the above steps can be retracted under the billiard table surface.

Example 2

The difference between this example and example 1 is: after the ball distributor 13 rotates clockwise and horizontally by 90 degrees, the opening of the C-shaped side plate 131 faces the sub-ball separation port 15; after the ball distributor 13 is horizontally rotated by 180 ° counterclockwise, the opening of the C-shaped side plate 131 faces the white ball separating port 14.

Example 3

The difference between this example and example 1 is: an infrared billiard detecting sensor 19 is arranged on one side of the ball blocking plate 12 far away from the ball distributor 13, and under the condition that no billiard is in front of the ball blocking plate 12, infrared rays emitted by the emitting end of the infrared billiard detecting sensor 19 can be received by the receiving end; when the billiards are arranged in front of the ball blocking plate 12, the billiards block infrared rays, so that the receiving end cannot receive the infrared rays.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes to be applied in other fields, but all the technical matters of the present invention are not departed from the technical contents of the present invention, and any simple modification and equivalent changes made to the above embodiments according to the technical matters of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A billiard ball arranging machine capable of automatically distributing and arranging balls comprises a ball distributing device (1) and a ball arranging device, wherein the ball distributing device (1) comprises a bag opening track (11), a ball distributing device (13), a white ball separating opening (14), a sub ball separating opening (15) and a white ball picking opening (16), and is characterized in that the ball distributing device (13) comprises a side plate (131) with a C-shaped cross section and an inclined base (132), the base (132) is in a cylindrical shape with a curved surface being obliquely cut, and one end of the base (132) with a large height is fixedly connected with the inner surface of the side plate (131);

an illuminating lamp (17) and a camera (18) are arranged above the ball distributor (13), and the output end of the camera (18) is electrically connected with a control system;

after the ball distributor (13) rotates horizontally at different angles, the openings of the C-shaped side plate (131) respectively face the white ball separating opening (14) and the sub-ball separating opening (15);

white ball pick up mouth (16) is connected to white ball separation mouth (14) outside, subsphere orbit under subsphere separation mouth (15), subsphere pass through subsphere orbit gets into pendulum ball device.

2. The billiard ball arranging machine capable of automatically distributing and arranging billiards according to claim 1, wherein a billiard blocking plate (12) is arranged at the joint of the bag opening track (11) and the billiard ball distributor (13), and a billiard ball detecting sensor (19) is arranged on one side of the billiard blocking plate (12) far away from the billiard ball distributor (13).

3. The billiard ball placing machine of claim 2, wherein the ball blocking plate (12) is limited or released by the upper telescopic electromagnet (121).

4. The billiard ball machine of claim 1, wherein the horizontal rotation of the ball distributor (13) and the ball blocking plate (12) is driven by an external motor.

5. The billiard ball placing machine of claim 1, wherein the ball placing device includes an L-shaped arm (2), a tray assembly (3) and a follower arm (4),

the L-shaped arm (2) can drive the follower arm (4) and the tray assembly (3) to turn over;

the tray assembly (3) comprises a billiard basket (31), a frame (33) and a tray (32), and the billiard basket (31) and the tray (32) can be matched to fix billiards; the tray (32) is connected with the frame (33) in a sliding way;

the tray assembly (3) is arranged on one side of the trailing arm (4) through two supporting plates (45) and two diagonal bracing rods (49), and the supporting plates (45) and the diagonal bracing rods (49) are respectively symmetrically arranged on two sides of the frame (33); the supporting plate (45) is connected with the follower arm (4) in a sliding mode, and two ends of the diagonal bracing rod (49) are hinged with the tray assembly (3) and the follower arm (4) respectively; under the matching of the supporting plate (45) and the inclined pulling supporting rod (49), the tray assembly (3) can be parallel or vertical to the follower arm (4);

the follower arm (4) is connected with the L-shaped arm (2) in a sliding manner.

6. The billiard and ball-placing machine of claim 5, wherein the following arm (4) is connected with the L-shaped arm (2) in a sliding manner in a specific manner:

the inner side of the L-shaped arm (2) is provided with a first guide rail, the two sides of the follower arm (4) are provided with a first sliding block, and the follower arm (4) can slide in the first guide rail on the inner side of the L-shaped arm (2) through the first sliding block.

7. The billiard ball placing machine capable of automatically distributing and placing balls according to claim 6, wherein the driving force of the follower arm (4) sliding inside the L-shaped arm (2) is provided by a telescopic motor (44), and the telescopic motor (44) is fixedly connected to one end of the follower arm (4) in the length direction and is positioned on one side of the tray assembly (3); the output shaft of the telescopic motor (44) is connected with a first driving wheel (46), and the first driving wheel (46) is arranged on one side, far away from the tray assembly (3), of the follower arm (4); the outer side of the driving wheel I (46) is meshed with a synchronous belt I (47), a driven wheel I is arranged at one end, far away from the driving wheel I (46), of the following arm (4) in the length direction, and the driven wheel I is matched with the driving wheel I (46) and the synchronous belt I (47); one position in the length direction of the synchronous belt I (47) is fixed on a cross beam (48) of the L-shaped arm (2) through a buckle I (50).

8. The billiard ball putting machine of claim 7, wherein the ball-separating and putting mechanism,

the tray assembly (3) can be parallel or vertical to the follower arm (4) in the following way:

the driving force for the azimuth change of the tray assembly (3) is provided by a lifting motor (41), and the lifting motor (41) is close to a telescopic motor (44); the lifting motor (41) is respectively connected with a second driving wheel through output shafts at two sides, the second driving wheel is positioned at one side of the tray assembly (3) on the follower arm (4), and the outer side of the second driving wheel is meshed with a second synchronous belt (42); driven wheels II are arranged on two sides of one end, far away from the lifting motor (41) and the driving wheel II, of the follower arm (4) in the width direction, and the driven wheels II are matched with the driving wheel II and the synchronous belt II (42);

the second synchronous belt (42) is provided with a second buckle (43), the second buckle (43) is installed on a support plate (45), and a second sliding block is arranged below the support plate (45); two sides of the follower arm (4) are provided with a second guide rail, and the second sliding block can be matched with the second guide rail.

9. The billiard ball machine of claim 5, wherein the tray (32) is slidably connected to the frame (33) via a third slide block and a third guide rail.