CN111973961A

CN111973961A - All-in-one is sent out to high reliability tennis

Info

Publication number: CN111973961A
Application number: CN202010870389.0A
Authority: CN
Inventors: 李永湘; 杜小俊; 苏海斌; 杨康辉; 何小林; 林跃君
Original assignee: Guizhou University of Engineering Science
Current assignee: Guizhou University of Engineering Science
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-11-24
Anticipated expiration: 2040-08-26
Also published as: CN111973961B

Abstract

The invention discloses a high-reliability tennis ball picking and distributing integrated machine, which relates to the technical field of tennis ball picking and distributing and comprises a picking and distributing bin and a ball picking flood dragon, wherein the picking and distributing bin is fixed on a base, rotating wheels are arranged at four corners of the base, the picking and distributing bin is internally provided with the ball picking flood dragon capable of continuously picking balls, and the tennis ball picking integrated machine also comprises a mounting seat and a track adjusting assembly, wherein the mounting seat is fixed inside the picking and distributing bin, an interval ball dispenser is arranged above the mounting seat, and the interval ball dispenser can receive balls from the ball picking flood dragon and provide tennis balls for the interval of the firing assemblies in the mounting seat; and the ball body accelerated by the firing assembly can be subjected to track adjustment by the track adjusting assembly, so that the tennis ball is subjected to track superposition change on the original motion track, and the tennis ball can be launched at various angles.

Description

All-in-one is sent out to high reliability tennis

Technical Field

The invention relates to the technical field of tennis ball picking and sending, in particular to a high-reliability tennis ball picking and sending all-in-one machine.

Background

Tennis as a popular sport, is popular among people, and in the process of single training of tennis, sometimes, a service robot needs to be used for picking up and serving tennis, so as to improve the training effect, the existing tennis is usually triggered by utilizing the relative rotation of two wheels to squeeze the tennis to shoot out the tennis, and the difference of the rotating speed of the two wheels can trigger the tennis and the tennis to be trained by players, however, the launching angle is unique, the body position of the players cannot be flexibly adjusted, the training effect is general, and sometimes, because the ground of a tennis court has certain water stain, part of the tennis is soaked in the water stain and absorbs moisture, when the tennis is collected by the tennis collecting and serving all-in-one machine, whether the tennis absorbs more moisture or not is difficult to distinguish, and the dry tennis and the tennis with the moisture are mixed into a whole, when the tennis is triggered, the water stain in the tennis flies and is continuously thrown out along with the hitting of the tennis, is not conducive to training.

Therefore, there is a need to provide a highly reliable tennis ball picking and delivering integrated machine to solve the above problems in the prior art.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: a high-reliability tennis ball picking and delivering integrated machine comprises a picking and delivering bin and ball picking flood dragon, wherein the picking and delivering bin is fixed on a base, rotating wheels are arranged at four corners of the base, the ball picking flood dragon capable of continuously picking balls is arranged in the picking and delivering bin,

the tennis ball picking device comprises a picking cabin, a ball feeding cabin, a ball receiving cabin, a ball conveying cabin, a ball picking flood dragon and a track adjusting assembly, wherein the picking cabin is provided with a ball receiving cabin, the ball receiving cabin is provided with a ball receiving flood dragon, and the ball receiving cabin is provided with a ball receiving flood dragon;

and the ball body accelerated by the firing assembly can be subjected to track adjustment by the track adjusting assembly, so that multi-angle service is realized.

Further, preferably, a second separation plate and a third separation plate which are perpendicular to each other are fixed in the picking and delivering bin, a ball picking dragon is fixed in a space formed by the second separation plate, the third separation plate and the picking and delivering bin, a ball picking port is formed in the bottom of the ball picking bin of the ball picking dragon, and catching plates are symmetrically fixed on two sides of the ball picking port;

a vertically arranged first partition plate is further fixed on one side of the second partition plate, and a screening space is formed among the first partition plate, the second partition plate, the third partition plate and the picking and delivering bin;

a fourth partition plate fixed on the mounting seat is arranged on one side of the first partition plate, which is far away from the second partition plate, and a ball collecting space is formed among the fourth partition plate, the first partition plate, the mounting seat and the picking and delivering bin;

pick up ball flood dragon and can pick up subaerial tennis and deliver to in the ball collecting space through the screening space.

Further, as preferred, be provided with the screening subassembly in the screening space, the screening subassembly is including leading ball board, screening plate, connecting rod, slide and supporting seat, wherein, lead the slope of ball board and fix on division board three, the opposite side of leading ball board articulates there is the screening plate, the bottom of screening plate articulates there is the connecting rod, the other end and the slide of sliding the setting on the supporting seat of connecting rod articulate mutually, still laid the screening spring between slide and the supporting seat, the supporting seat is fixed on division board three to the ball that picks up ball flood dragon is filtered according to weight, selects the more tennis of moisture.

Preferably, a groove body is formed in the mounting seat, a motor bin is fixed in the groove body, the groove body can be divided into a ball inlet groove and a percussion bin through the motor bin, and a ball inlet pipe is embedded in the ball inlet groove and used for receiving tennis balls sent by the spaced ball serving device;

the interval ball serving device comprises a ball disc, wherein a plurality of groups of circular through grooves are uniformly formed in one circumference close to the outer side of the ball disc and used for enabling tennis balls to fall into the ball disc, the ball disc is rotatably arranged above the motor bin and is driven by a motor in the motor bin to rotate, and therefore the tennis balls in the ball disc are pushed to perform circumferential displacement until the tennis balls fall into the ball inlet pipe.

Preferably, a ball outlet pipe which is communicated with the percussion bin and extends out of the picking bin is further embedded into the mounting seat, a base plate is attached to the inner bottom surface of the ball outlet pipe, and a ball outlet of the ball outlet pipe corresponds to the adjusting end of the track adjusting assembly.

Further, as preferred, the percussion subassembly includes and hits the generator, rack, percussion spring and hits the hair, wherein, the hair is fixed in the one end of rack, the rack adopts the slider to slide and sets up in the spacing groove of seting up on the mount pad, the other end of rack adopts percussion spring to link to each other with division board one, just the rack with lack the gear and mesh mutually, lack the gear and fix the output at the generator, it fixes in the percussion storehouse to hit the generator.

Preferably, the percussion head is a cavity structure, an auxiliary percussion head capable of extending out of the percussion head is slidably arranged in the cavity, and the percussion action of the auxiliary percussion head is driven by an air cylinder fixed outside the percussion head.

Further, as preferred, the orbit adjustment subassembly includes surge bin, base, telescopic link and arc brace table, wherein, surge bin is fixed in picks up the outside in sending out the storehouse, the circumference array has multiunit arc brace table in the surge bin, and the multiunit can constitute a circular between the arc brace table, the output at the telescopic link is fixed to one side that the brace table is close to surge bin, the other end of telescopic link adopts the base to be fixed in the inside of surge bin.

Further, preferably, the number of the arc-shaped supporting tables is four, and a guide roller is fixed at one end, far away from the adjusting bin, of each arc-shaped supporting table;

each arc-shaped support platform is symmetrically connected with the inner wall of the adjusting bin by adopting a telescopic bag;

when the tennis ball is subjected to track adjustment, 1-2 directions of force are applied to the tennis ball when the guide rollers provide guidance through the extension of the 1-2 groups of telescopic rods with force application directions different from the same straight line, so that the tennis ball is subjected to track superposition change on the original motion track;

in addition, the tennis ball can be limited in speed by extending 1-4 groups of telescopic rods.

Further, as preferred, constitute the stoving space between division board four, mount pad and the storehouse of sending out, be fixed with the drying apparatus in the stoving space, the stoving end of drying apparatus stretches into in the ball space that gathers.

Compared with the prior art, the invention provides a high-reliability tennis ball picking and sending all-in-one machine, which has the following beneficial effects:

1. in this device, utilize and pick up the ball flood dragon and can realize continuously picking up the ball to the screening subassembly that sets up can select the more tennis of moisture according to weight to the ball that picks up the ball flood dragon, has improved the reliability of whole device, and can prevent that the more tennis of moisture from influencing subsequent percussion and training.

2. In the device, the power generator drives the gear to rotate, the gear drives the rack to move backwards in the rotating process, the rack compresses the trigger spring backwards, then the tooth teeth of the gear are separated from the rack, and the rack drives the trigger head to trigger the tennis under the action of the trigger spring, so that the tennis can be triggered

3. When the tennis ball is subjected to track adjustment, 1-2 directions of force are applied to the tennis ball by the extension of the telescopic rods with force application directions of 1-2 groups not on the same straight line when the guide rollers provide guidance, so that the tennis ball is subjected to track superposition change on the original motion track, and the tennis ball can be launched at various angles; in addition, the tennis ball can be limited in speed through the extension of the 1-4 groups of telescopic rods, so that the tennis ball can be launched at various speeds.

Drawings

FIG. 1 is a schematic perspective view of a highly reliable integrated tennis ball picking and launching machine;

FIG. 2 is a schematic plane structure diagram of a highly reliable integrated tennis ball picking and delivering machine;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a partially enlarged schematic view of FIG. 2;

FIG. 5 is a schematic structural diagram of a track adjustment assembly in a highly reliable tennis ball picking and delivering machine;

FIG. 6 is a schematic structural view of a ball tray in a highly reliable integrated tennis ball picking and delivering machine;

in the figure: 1. a hair picking bin; 2. a ball throwing port; 3. a controller; 4. a ball outlet; 5. a base; 6. a trajectory adjustment assembly; 7. a first partition plate; 8. a second partition plate; 9. a third partition plate; 10. a ball pickup dragon; 11. a fourth partition plate; 12. a dryer; 13. a mounting seat; 14. a catch plate; 15. a ball guide plate; 16. screening the plate; 17. a connecting rod; 18. a slide base; 19. a supporting seat; 20. a ball inlet groove; 21. a ball outlet pipe; 22. a base plate; 23. a motor compartment; 24. a percussion bin; 25. a generator is driven; 26. a rack; 27. a firing spring; 28. a hair-striking head; 29. an auxiliary impact head; 30. a cylinder; 31. a ball pan; 61. a regulating bin; 62. a base; 63. a telescopic rod; 64. an arc-shaped support table; 65. a bellows; 66. and (4) guiding the roller.

Detailed Description

Referring to fig. 1 to 6, in an embodiment of the present invention, a highly reliable tennis ball picking and delivering all-in-one machine includes a picking and delivering bin 1 and a ball picking dragon 10, wherein the picking and delivering bin 1 is fixed on a base 5, four corners of the base 5 are provided with rotating wheels, the picking and delivering bin 1 is provided with the ball picking dragon 10 capable of continuously picking balls, the ball picking dragon is an existing material lifting dragon device, and the ball picking dragon drives tennis balls to ascend by utilizing the rotation of a dragon without much description,

the tennis ball picking device further comprises a mounting seat 13 and a track adjusting assembly 6, wherein the mounting seat 13 is fixed inside the ball picking and delivering bin, a spacing ball dispenser is arranged above the mounting seat 13, and the spacing ball dispenser can receive balls from the ball picking flood dragon 10 and provide tennis balls for the firing assembly in the mounting seat 13 at intervals;

and the ball body accelerated by the triggering assembly can be subjected to track adjustment by the track adjusting assembly, so that multi-angle service is realized, and the training for the player is facilitated.

In this embodiment, as shown in fig. 2, a second separation plate 8 and a third separation plate 9 which are perpendicular to each other are fixed in the picking and delivering bin 1, a ball picking auger 10 is fixed in a space formed by the second separation plate 8, the third separation plate 9 and the picking and delivering bin 1, a ball picking port is formed at the bottom of the ball picking bin of the ball picking auger 10, and catching plates 14 are symmetrically fixed on two sides of the ball picking port;

a vertically-arranged separation plate I7 is further fixed on one side of the separation plate II 8, and a screening space is formed among the separation plate I7, the separation plate II 8, the separation plate III 9 and the picking and delivering bin 1;

a fourth partition plate 11 fixed on the mounting seat 13 is arranged on one side of the first partition plate 7, which is far away from the second partition plate 8, and a ball collecting space is formed among the fourth partition plate 11, the first partition plate 7, the mounting seat 13 and the picking and delivering bin 1;

pick up ball flood dragon 10 can pick up subaerial tennis and deliver to in the ball space of gathering through the screening space.

In this embodiment, as shown in fig. 2-3, be provided with the screening subassembly in the screening space, the screening subassembly includes ball guide plate 15, screening plate 16, connecting rod 17, slide 18 and supporting seat 19, wherein, ball guide plate 15 slope is fixed on division board three 9, ball guide plate 15's opposite side articulates there is screening plate 16, screening plate 16's bottom articulates there is connecting rod 17, connecting rod 17's the other end articulates with slide 18 that slides and set up on supporting seat 19 mutually, still lay the screening spring between slide 18 and the supporting seat 19, supporting seat 19 is fixed on division board three 9 to the ball that picks up ball dragon 10 and picks up screens according to weight, selects the more tennis of moisture, has improved the reliability of whole device, and can prevent that the more tennis of moisture from influencing subsequent percussion and training.

In this embodiment, a trough body is formed in the mounting base 13, a motor bin 23 is fixed in the trough body, and the trough body can be divided into a ball inlet trough 20 and a trigger bin 24 by the motor bin 23, wherein a ball inlet pipe is embedded in the ball inlet trough 20 and is used for receiving tennis balls sent by an interval ball dispenser;

as shown in fig. 4 and 6, the spaced ball dispenser includes a ball tray 31, a plurality of sets of circular through grooves are uniformly formed on an outer circumference of the ball tray 31 for allowing tennis balls to fall therein, the ball tray 31 is rotatably disposed above the motor compartment 23 and is driven by a motor in the motor compartment 23 to rotate, so as to push tennis balls therein to perform circumferential displacement until the tennis balls fall into the ball inlet pipe, and in addition, it should be noted that the motor in the motor compartment 23 is a speed-adjustable motor, so as to facilitate adjustment of the ball dispensing interval of the spaced ball dispenser.

In a preferred embodiment, a ball outlet tube 21 which is communicated with the firing bin 24 and extends out of the picking bin 1 is further embedded in the mounting seat 13, a backing plate 22 is attached to the inner bottom surface of the ball outlet tube 21, and the ball outlet 4 of the ball outlet tube 21 corresponds to the adjusting end of the track adjusting assembly 6.

In this embodiment, as shown in FIG. 4, the firing assembly includes a trigger generator 25, a rack 26, a firing spring 27 and a firing head 28, wherein, the trigger head 28 is fixed at one end of the rack 26, the rack 26 is arranged in a limit groove arranged on the mounting seat 13 in a sliding way by adopting a slide block, the other end of the rack 26 is connected with the first partition plate 7 by adopting a trigger spring 27, the rack is meshed with a gear which is short, the gear which is short is fixed at the output end of a trigger generator 25, the trigger generator 25 is fixed in a trigger bin 24, in specific implementation, the generator 25 drives the gear-lacking wheel to rotate, and in the rotating process of the gear-lacking wheel, the rack 26 is driven to move backwards, the rack 26 compresses the firing spring 27 backwards, then the tooth teeth of the missing gear are separated from the rack, and the rack drives the firing head 28 to strike the tennis ball under the action of the firing spring 27, so that the tennis ball is fired.

Preferably, the striking head 28 has a cavity structure, an auxiliary striking head 29 capable of extending out of the striking head 28 is slidably disposed in the cavity, and the striking operation of the auxiliary striking head 29 is driven by a cylinder 30 fixed outside the striking head 28, so that the tennis ball can be further accelerated and the upper limit of the speed of the tennis ball is increased.

In this embodiment, as shown in fig. 5, the track adjusting assembly 6 includes an adjusting bin 61, a base 62, an expansion link 63 and arc support platforms 64, wherein the adjusting bin 61 is fixed outside the hair picking bin 1, a plurality of sets of arc support platforms 64 are circumferentially arranged in the adjusting bin 61, and a circle can be formed between the plurality of sets of arc support platforms 64, one side of the support platform 64 close to the adjusting bin 61 is fixed at the output end of the expansion link 63, and the other end of the expansion link 63 is fixed inside the adjusting bin 61 by the base 62.

Further, the number of the arc-shaped support tables 64 is four, and a guide roller 66 is fixed at one end of each arc-shaped support table, which is far away from the adjusting bin 61;

each arc-shaped support platform 64 is symmetrically connected with the inner wall of the adjusting bin 61 by adopting a telescopic bag 65;

when tennis ball trajectory is adjusted, 1-2 directions of force are applied to the tennis ball by extending the 1-2 groups of telescopic rods 63 with force application directions different from the same straight line, so that the tennis ball trajectory is overlapped and changed on the original motion trajectory, specifically, one group of telescopic rods can be used for extending and applying force, or two groups of telescopic rods 63 with force application directions different from the same straight line can be used for extending and applying force, so that the tennis ball can be launched at various angles;

in addition, the tennis ball can be limited in speed through the extension of 1-4 groups of telescopic rods 63, so that the tennis ball can be launched at various speeds.

In this embodiment, constitute the stoving space between four 11, the mount pad 13 of division board and the storehouse of sending out 1, be fixed with drying apparatus 12 in the stoving space, during the stoving end of drying apparatus 12 stretched into ball collection space, in addition, still be provided with controller 3 in this embodiment, controller 3 was used for controlling respectively and picks up the action of ball flood dragon 10, interval ball sender, generator 25, cylinder 30 and telescopic link.

In specific implementation, the ball collecting dragon 1 in the ball collecting and delivering bin 1 is used for continuously collecting balls, or the ball can be delivered through the ball delivering port 2, wherein the ball collecting dragon 10 can collect and deliver the screened tennis balls to the ball collecting space, the spaced ball delivering device in the ball collecting space can provide the tennis balls for the firing component in the mounting seat 13 at intervals, then the striking generator 25 in the firing component drives the missing gear to rotate, the missing gear drives the rack 26 to move backwards in the rotating process, the rack 26 compresses the firing spring 27 backwards, then the teeth of the missing gear are separated from the rack, the rack drives the firing head 28 to strike the tennis balls under the action of the firing spring 27, so as to achieve the firing of the tennis balls, in addition, when the trajectory adjustment is carried out on the tennis balls, the guide rollers 66 can provide the guide through the extension of the telescopic rods 63 with force application directions being not on the same straight line in 1-2 groups, applying 1-2 directions of force to the tennis ball to enable the tennis ball to be subjected to track superposition change on the original motion track, so that the tennis ball can be launched at various angles; in addition, the tennis ball can be limited in speed through the extension of 1-4 groups of telescopic rods 63, so that the tennis ball can be launched at various speeds.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The utility model provides an all-in-one is picked up to high reliability tennis, its is including picking up send out storehouse (1) and picking up ball flood dragon (10), wherein, pick up send out storehouse (1) and be fixed in on base (5), four edges of base (5) are provided with the runner, it is provided with the ball flood dragon (10) of picking up that can continuously pick up the ball, its characterized in that to pick up in send out storehouse (1):

the tennis ball picking device is characterized by further comprising a mounting seat (13) and a track adjusting assembly (6), wherein the mounting seat (13) is fixed inside the ball picking bin, a spaced ball dispenser is arranged above the mounting seat (13), and can receive balls from the ball picking dragon (10) and provide tennis balls for the firing assembly in the mounting seat (13) at intervals;

2. The machine as claimed in claim 1, wherein: a second separation plate (8) and a third separation plate (9) which are perpendicular to each other are fixed in the picking and delivering bin (1), a ball picking flood dragon (10) is fixed in a space formed by the second separation plate (8), the third separation plate (9) and the picking and delivering bin (1), a ball picking port is formed in the bottom of the ball picking flood dragon (10), and catching plates (14) are symmetrically fixed on two sides of the ball picking port;

a vertically-arranged first partition plate (7) is further fixed on one side of the second partition plate (8), and a screening space is formed among the first partition plate (7), the second partition plate (8), the third partition plate (9) and the picking and delivering bin (1);

a fourth partition plate (11) fixed on the mounting seat (13) is arranged on one side, away from the second partition plate (8), of the first partition plate (7), and a ball collecting space is formed among the fourth partition plate (11), the first partition plate (7), the mounting seat (13) and the picking and delivering bin (1);

pick up ball flood dragon (10) can pick up subaerial tennis and deliver to in the ball space of gathering through the screening space.

3. The machine as claimed in claim 2, wherein: be provided with the screening subassembly in the screening space, the screening subassembly is including leading ball board (15), screening board (16), connecting rod (17), slide (18) and supporting seat (19), wherein, lead ball board (15) slope and fix on division board three (9), the opposite side of leading ball board (15) articulates there is screening board (16), the bottom of screening board (16) articulates there is connecting rod (17), the other end of connecting rod (17) is articulated mutually with slide (18) of sliding setting on supporting seat (19), still laid the screening spring between slide (18) and supporting seat (19), supporting seat (19) are fixed on division board three (9) to the ball of picking up ball flood dragon (10) is selected according to weight, selects the more aqueous tennis.

4. The machine as claimed in claim 1, wherein: a trough body is arranged in the mounting seat (13), a motor bin (23) is fixed in the trough body, the trough body can be divided into a ball inlet trough (20) and a firing bin (24) through the motor bin (23), and a ball inlet pipe is embedded in the ball inlet trough (20) and used for receiving tennis balls sent by the spaced ball serving device;

the interval ball serving device comprises a ball disc (31), a plurality of groups of circular through grooves are uniformly formed in one circumference, close to the outside, of the ball disc (31) and used for enabling tennis balls to fall into the ball disc, the ball disc (31) is rotatably arranged above a motor bin (23) and is driven by a motor in the motor bin (23) to rotate, and therefore the tennis balls in the ball disc are pushed to perform circumferential displacement until the tennis balls fall into a ball inlet pipe.

5. The machine as claimed in claim 4, wherein: the ball outlet pipe (21) which is communicated with the percussion bin (24) and extends out of the picking bin (1) is further embedded into the mounting seat (13), a backing plate (22) is attached to the inner bottom surface of the ball outlet pipe (21), and a ball outlet (4) of the ball outlet pipe (21) corresponds to an adjusting end of the track adjusting component (6).

6. The machine as claimed in claim 4, wherein: the trigger assembly comprises a trigger generator (25), a rack (26), a trigger spring (27) and a trigger head (28), wherein the trigger head (28) is fixed at one end of the rack (26), the rack (26) is arranged in a limiting groove formed in the mounting seat (13) in a sliding mode through a sliding block, the other end of the rack (26) is connected with a first partition plate (7) through the trigger spring (27), the rack is meshed with a gear, the gear is fixed at the output end of the trigger generator (25), and the trigger generator (25) is fixed in a trigger bin (24).

7. The machine as claimed in claim 6, wherein: the percussion head (28) is of a cavity structure, an auxiliary percussion head (29) capable of extending out of the percussion head (28) is arranged in the cavity in a sliding mode, and the percussion action of the auxiliary percussion head (29) is driven by a cylinder (30) fixed outside the percussion head (28).

8. The machine as claimed in claim 1, wherein: orbit adjusting part (6) are including adjusting storehouse (61), base (62), telescopic link (63) and arc brace table (64), wherein, adjusting storehouse (61) are fixed in the outside of picking up the storehouse of sending out (1), the circumference array has multiunit arc brace table (64) in adjusting storehouse (61), and multiunit can constitute a circular between arc brace table (64), the output at telescopic link (63) is fixed to one side that brace table (64) are close to adjusting storehouse (61), the other end of telescopic link (63) adopts base (62) to be fixed in the inside of adjusting storehouse (61).

9. The machine as claimed in claim 8, wherein: the number of the arc-shaped supporting tables (64) is four, and one end of each arc-shaped supporting table, which is far away from the adjusting bin (61), is fixedly provided with a guide roller (66);

each arc-shaped support platform (64) is symmetrically connected with the inner wall of the adjusting bin (61) by adopting a telescopic bag (65);

when the tennis ball is regulated in track, 1-2 groups of telescopic rods (63) with force application directions different from the same straight line extend to enable the guide rollers (66) to apply force in 1-2 directions to the tennis ball when providing guidance, so that the tennis ball is superposed and changed in track on the original motion track;

in addition, the tennis ball can be limited in speed by extending 1-4 groups of telescopic rods (63).

10. The machine as claimed in claim 2, wherein: and a drying space is formed among the fourth partition plate (11), the mounting seat (13) and the picking and sending bin (1), a dryer (12) is fixed in the drying space, and the drying end of the dryer (12) extends into the ball collecting space.