KR20130140345A - Device for creating a return air flow in an apparatus for shooting a badminton ball - Google Patents

Device for creating a return air flow in an apparatus for shooting a badminton ball Download PDF

Info

Publication number
KR20130140345A
KR20130140345A KR1020120063641A KR20120063641A KR20130140345A KR 20130140345 A KR20130140345 A KR 20130140345A KR 1020120063641 A KR1020120063641 A KR 1020120063641A KR 20120063641 A KR20120063641 A KR 20120063641A KR 20130140345 A KR20130140345 A KR 20130140345A
Authority
KR
South Korea
Prior art keywords
ball
pipe
badminton
supply pipe
air flow
Prior art date
Application number
KR1020120063641A
Other languages
Korean (ko)
Inventor
심남택
Original Assignee
주식회사 다산실업
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 다산실업 filed Critical 주식회사 다산실업
Priority to KR1020120063641A priority Critical patent/KR20130140345A/en
Publication of KR20130140345A publication Critical patent/KR20130140345A/en

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B67/00Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
    • A63B67/18Badminton or similar games with feathered missiles
    • A63B67/183Feathered missiles
    • A63B67/187Shuttlecocks
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/0017Training appliances or apparatus for special sports for badminton
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/40Stationarily-arranged devices for projecting balls or other bodies
    • A63B69/409Stationarily-arranged devices for projecting balls or other bodies with pneumatic ball- or body-propelling means
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/04Badminton

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

The present invention relates to a device for creating an air flow for conveying a badminton shuttlecock in an apparatus for shooting a badminton shuttlecock which creates an air flow for conveying a badminton shuttlecock from an upper part to a lower part by a wind-blowing tool in a path for a badminton shuttlecock from a supply pipe (2) for a badminton shuttlecock placed at the upper part of a body (1) to a guide pipe (4) placed at the lower part of the body (1). According to the present invention, a badminton shuttlecock put into the supply pipe (2) is introduced into a guide pipe (4) by a withdrawing unit (3), and the badminton shuttlecock introduced into the guide pipe (4) moves easily to the curved part (R) of the guide part (4) without damaging feathers and is supplied to the apparatus for shooting a badminton shuttlecock, thereby effectively enabling the shooting of a badminton shuttlecock and hitting practice because a conveying air flow is formed in a path for a badminton shuttlecock from the supply pipe (2) to the guide pipe (4).

Description

DEVICE FOR CREATING A RETURN AIR FLOW IN AN APPARATUS FOR SHOOTING A BADMINTON BALL}

The present invention relates to a ball conveying device of the ball of the badminton ball thrower, more specifically, as long as it is rotated at a high speed by being located on the supply pipe and the lower side of the ball located on the upper side of the ball thrower of the badminton ball The air flow of the ball is formed in the path of the ball leading to the curved guide tube so that the badminton ball is supplied to the pair of throwing rods, so that the badminton ball with the weak wings moves smoothly through the passage with the help of the air flow. It is possible.

In the conventional ball throwing device, two rollers rotated at high speed pinch the ball to throw the ball by a rotating centrifugal force.

As another example of the prior art, a ball dispensing apparatus of the Utility Model Publication No. 1999-0005572 (1990, 06.22. Announcement) has a slide tube on a support of a support body provided with a compression motor, an air compressor, And a discharge pipe in which an expansion pipe is installed in a direction perpendicular to the sliding pipe so as to be able to move up and down. The compressed air is extruded through an air passage into an air supply groove which is opened and closed by the operation of a solenoid, And the ball placed on the outside is fired to the outside through the inside of the expansion pipe by the air pressure.

Badminton ball, unlike other balls, because the ball is provided with a light and fragile wings radially, the wings are damaged when the badminton ball throwing, the inventors of the invention badminton ball ball throwing device is a rotary badminton The badminton ball is supplied from the ball storage tube to the pair of throwing rods that are rotated at high speed through the supply pipe and the guide tube, and the badminton balls are blown forward by the throwing rods.

The badminton thrower is characterized by being able to throw the ball without damaging the badminton wings by a pair of throwing rods that rotate at high speed.

However, if the supply pipe located on the upper side of the thrower and the curved guide line located on the lower side are moved and supplied by the falling gravity of the badminton ball, the light ball may move in the middle of the moving path due to the frictional resistance of the ball and the guide tube. There was a problem that the reliability of the feeding operation of the ball was not high because of stationary or unstable movement.

The present invention, in order to correct the above problems, by forming a carrier air flow of the ball is moved from the top to the bottom by the blowing means in the ball passage of the ball from the supply pipe of the badminton thrower to the guide tube of the air flow With the help of the new badminton ball thrower, the ball conveying air flow device has been developed to move the passage smoothly and supply it to the throwing rod side with certainty.

 It is an object of the present invention, the ball is moved from the upper side to the lower side in the passage of the badminton ball connected to the supply pipe and the curved guide tube of the badminton ball of the badminton ball to facilitate the formation of the carrier airflow ball with the help of airflow The present invention provides a ball conveying air flow apparatus for a badminton ball thrower that can move to a supply pipe and a guide pipe and accurately and reliably supply a ball to a throwing rod side.

Another object of the present invention, in the badminton blower, in order to form a conveying air flow of the ball in the passage of the ball, the blower pipe of the blower driven by the motor as the blower means to control the wind pressure by the valve to the supply pipe and the guide pipe, respectively It provides a ball airflow device of the badminton ball thrower which is in contact with the badminton ball can be easily conveyed because the air flow flowing from the upper side to the lower side is formed by adjusting the wind pressure on the supply pipe side higher Is in.

The present invention supplies a badminton ball to a pair of ball rods that are rotated at a high speed in the lower portion of the gas by the supply pipe of the ball provided on the upper side of the body of the badminton ball thrower, and the guide tube provided bent at the lower portion of the supply pipe In the batting practice by throwing a long distance by the throwing rod, the badminton ball moving from the upper side to the lower side in the passage of the ball from the upper side of the supply pipe to the guide tube guided to the curved side of the pair of throwing rods The conveying airflow is characterized by being formed.

In the present invention, as one blowing means for creating a ball conveying air flow in the passage of the ball, two blower pipes associated with the blower driven by the motor, respectively, to control the wind pressure through the valves, respectively, The badminton ball is configured to be able to move smoothly with the help of the conveying air flow of the ball by contacting the curved lower side and providing a difference in wind pressure between the supply pipe and the guide pipe so that the air flows from the supply pipe side to the guide pipe side. .

In the present invention, the means for forming the airflow moving from the upper side to the lower side in the movement passage of the ball is not limited to the above blower, and various means may be employed to create the airflow.

In addition, the air flow formed in the passage of the ball of the present invention is for conveying the ball smoothly, and the characteristics of the air flow are completely different from that of firing the ball by instantaneously blowing high pressure air from a compressed air tank to throw the ball away. . The conveying airflow of the ball is a conveying airflow having a suitable air pressure that can smoothly move the bent portion of the guide tube and supply it to the throwing rod side without being broken or damaged by the weak wing of the ball.

According to the present invention having the above-described configuration, when the batting practice while automatically throwing the badminton ball, the ball is dropped into the supply pipe of the lower side when the ball stored in the storage pipe falls one by one into the supply pipe and the ball introduced into the supply pipe The badmink balls are pulled downward by a pair of pull-out plates operated by a motor of the take-out mechanism and are fed to the hopper of the guide tube.

 The thrown ball is supplied between a pair of throwing rods that rotate at high speed in the direction facing through the guide tube so that the ball is blown to a distance far forward by the centrifugal force of the high-speed rotation while being held by the throwing rods.

In the process of supplying such badminton balls, air is supplied from the blower driven by the motor to the supply pipe and the guide pipe through the blower pipe. At this time, the air pressure blown to the feed pipe is blown to the guide pipe by adjusting the valves provided in the blower pipes. Adjust higher than wind pressure.

Therefore, the air flow moving from the upper side to the lower side is created in the passage of the ball from the supply pipe to the guide pipe due to the wind pressure difference between the supply pipe and the guide pipe.

The light ball flowed into the supply pipe with higher wind pressure through the receiving pipe is easily moved to the lower side through the air flow flowing downward, and is caught by the drawing plate of the take-out mechanism and is supplied to the hopper side of the guide pipe with a certain periodicity. Done.

The ball introduced into the guide tube through the hopper is easily supplied to the pitcher rods by easily moving the curved portion of the guide tube with the help of the airflow flowing into the guide tube.

The reason for adjusting the wind pressure of the supply pipe in the present invention higher than the wind pressure of the guide pipe is to create an air flow that can flow from the supply pipe located on the upper side of the gas to the guide pipe located on the lower side, if the wind pressure of the guide pipe If it is higher or equal, the air flow is not created due to the nature of the gas, and some of the allowances in the guide tube are flowed back to the supply pipe on the upper side, which impedes the movement of the ball downward.

In addition, the wind pressure of the airflow may be such that the wing of the ball can pass through the curved portion of the guide tube without being bent.

As described above, the ball of the ball is guided because the air flows from the upper side to the lower side in the passage of the ball from the upper side supply pipe to the lower side guide pipe to form a conveying air flow. The problem that the middle of the tube is stopped by frictional resistance or the reliability of the feeding operation is not solved, and the badminton ball can be smoothly and smoothly supplied to the throwing rod periodically.

According to the present invention, the ball of the badminton ball is formed in the path of the ball from the supply pipe of the badminton ball to the guide tube, so that the ball with the wings can be moved smoothly with the help of the air flow. The curved guide tube can be easily moved to provide a reliable and accurate supply.

In addition, since the conventional blower is adopted as a means for creating air flow in the ball moving passage of the thrower, the structure is simple and easy to operate, and thus it can be applied to the badminton thrower more usefully.

1 is a front view of a badminton ball thrower
Figure 2 is an exemplary side view of a carrier air flow composition device applied to the badminton ball thrower of Figure 1

1 is a badminton ball thrower to which the present invention is applied, and a hopper-type supply pipe 2 of a ball in which a ball B supplied from an accommodation tube d of a bad ball falls on an upper side of a base 1 is provided. At the lower side of the supply pipe (2), a pair of pull-out plates (3a) (3b) driven by a motor (3m) pinching the ball (B) on both sides to take out at regular intervals (3) Is provided. On the lower side of the take-out mechanism 3 on the vertical line with the supply pipe 2, a guide tube 4 is provided to bend from the vertical direction to the horizontal direction, and in front of the guide tube 4 is faced by a motor 5m. The throwing mechanism 5 is provided with a pair of throwing rods (5a) (5b) to rotate at a high speed in the direction of the direction to hold the head of the badminton ball (B) supplied from the supply pipe (4) so as not to damage the wings Blow to the street to practice the blow will be.

The throwing mechanism 5 of the badminton ball thrower was separately filed by the applicant.

According to one embodiment of the present invention, as shown in Fig. 2, the conveying air flow of the badminton ball moving from the upper side to the lower side in the passage of the ball from the upper part of the supply pipe 2 to the guide tube 4 Blower means 6 for forming a blower tube 6a of the two blower pipes 6a and 6b associated with the blower 6f driven by the motor 6m. The air blower 6b is connected to the curved portion R of the guide tube 4 so that the air pressure can be adjusted by the valve v2. The conveying air flow of the ball is formed from the higher-adjusted supply pipe 2 to the passage of the guide pipe 4 with lower wind pressure.

According to the present invention configured as described above, when the badminton ball (B) stored in the housing tube (d) is dropped into the supply pipe (2) by the drop means as shown in Figure 2, the ball introduced into the supply pipe (2) is taken out One badminton ball B is pinched on both sides by a pair of take-out plates 3a and 3b operated by the motor 3m of (3), and is pulled downward to be introduced into the guide tube 4.

 The ball B introduced into the guide tube 4 is supplied and supplied between a pair of throwing rods 5a and 5b which rotate at a high speed in a direction facing each other through the curved portion R of the guide tube 4. ), While the ball is pinched on the throwing rods 5a and 5b, the ball is strongly blown forward by a long distance.

In the process of supplying such badminton balls, the motor 6m of the blowing means 6 is driven so that air is supplied from the blower 6f to the supply pipe 2 and the guide tube 4 through the blower pipes 6a and 6b. . At this time, the air pressure blown to the supply pipe 2 by the adjustment of the valve v1 provided in the blower pipe 6a is adjusted higher than the wind pressure blown to the guide pipe 4 side, and the valve v2 provided in the blower pipe 6b. ), The wind pressure blown to the guide pipe 4 is adjusted to be relatively low compared to the wind pressure blown to the supply pipe 2 side.

Of the ball moving from the upper side to the lower side in the passage of the badminton ball B from the supply tube 2 to the guide tube 4 due to the difference in two wind pressures supplied into the supply tube 2 and the guide tube 4. Carrier airflow is formed.

The formed conveying airflow prevents the blades provided in the badminton ball in the passage of the ball from stopping or impeding the movement of the ball by frictional resistance with the inner wall of the guide tube, and in particular the curved portion R of the guide tube 4 Since the main point of the invention is to make it move easily, unlike the explosive injection of high-pressure air for firing a conventional ball, the wind pressure is enough that the weak wing of the badminton ball can be easily moved without breaking.

As described above, since the conveying air flow of the ball is formed in the passage of the ball from the ball supply pipe 2 to the guide pipe 4 of the thrower, the ball drawn out by the take-out mechanism 3 is transferred to the guide pipe 4. Inflow, the curved portion (R) of the guide pipe (4) with the help of the conveying air flow easily and periodically supplied to the throwing rod (5a) (5b) side is thrown forward by the throwing rod to practice the hitting.

  The reason for adjusting the wind pressure on the supply pipe 2 side in the present invention higher than the wind pressure on the guide pipe 4 side is to flow from the supply pipe 2 located on the upper side of the gas 1 to the guide pipe 4 located on the lower side. It is to create a carrier air flow that can be.

If the wind pressure on the guide pipe 4 side is higher than or equal to the wind pressure on the supply pipe 2 side, not only the downward air flow is formed due to the characteristics of the gas, but also the guide pipe 2 side. In the part of the cantilever flow back to the supply pipe (2) side of the upper side will interfere with the downward movement of the ball.

In this way, in the passage of the ball from the supply pipe 2 on the upper side to the guide tube 4 on the lower side, a carrier airflow flowing from the upper side to the lower side is formed so that the ball having the wings with the help of the air flow guide tube 4. Since the curved portion (R) of the ball is configured to be easily moved, the problem that the blade of the ball is stopped by the frictional resistance in the middle of the guide tube 4 or the supply operation reliability is insufficient is solved and the badminton ball is more reliably periodically. Can be smoothly supplied to the throwing rod (5a) (5b) side.

DESCRIPTION OF SYMBOLS 1 Gas 2 Supply pipe 3 Drawing-out mechanism 4 Guiding pipe 5 Throwing mechanism 6 Blowing means
6a, 6b: Blower pipe 6f: Blower 6m: Motor v1, v2: Valve

Claims (3)

On the upper side of the base 1, a pair of take-out plates 3a and 3b driven by a motor 3m are provided on the supply tube 2 of the ball and the lower side of the supply tube 2. As long as it rotates at a high speed in the direction facing by the take-out mechanism 3 which pinches B), the guide pipe 4 which guides the ball drawn out from the dispenser, and the front motor 5m of the guide pipe 4; In the badminton ball thrower provided with the throwing mechanism 5 provided with the pair of throwing rods 5a and 5b,
Badminton, characterized in that to form a conveying air flow of the badminton ball moving from the upper side to the lower side by the blowing means (6) in the passage of the ball from the upper portion of the supply pipe (2) to the guide tube (4) Ball conveying device of ball thrower.
The method of claim 1,
The blowing means 6 for creating the conveying air flow of the ball is one of the two blowing pipes 6a and 6b associated with the blower 6f driven by the motor 6m. It is possible to adjust the wind pressure to the upper side of the supply pipe (2) and another blower pipe (6b) is in contact with the curved portion of the guide pipe (4) to enable the adjustment of the wind pressure through the valve (v2), supply pipe ( 2) and the ball conveying air flow apparatus of the badminton ball thrower, characterized in that it is configured to be blown to the guide tube (4), respectively.
The method of claim 1,
The air pressure blown from the blower 6f to the supply pipe 2 by adjusting the valve v1 of the blower pipe 6a associated with the supply pipe 2 is guided through the blower tube 6b and the valve v2 from the blower 6f. It is relatively high in comparison with the wind pressure blown to the pipe 4 side, so that the conveying air flow of the ball flowing from the upper side to the lower side is formed in the passage of the ball from the supply pipe 2 side to the guide tube 4 side. The ball conveying airflow device of the badminton ball thrower.
KR1020120063641A 2012-06-14 2012-06-14 Device for creating a return air flow in an apparatus for shooting a badminton ball KR20130140345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120063641A KR20130140345A (en) 2012-06-14 2012-06-14 Device for creating a return air flow in an apparatus for shooting a badminton ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120063641A KR20130140345A (en) 2012-06-14 2012-06-14 Device for creating a return air flow in an apparatus for shooting a badminton ball

Publications (1)

Publication Number Publication Date
KR20130140345A true KR20130140345A (en) 2013-12-24

Family

ID=49984979

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120063641A KR20130140345A (en) 2012-06-14 2012-06-14 Device for creating a return air flow in an apparatus for shooting a badminton ball

Country Status (1)

Country Link
KR (1) KR20130140345A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492057A (en) * 2014-12-16 2015-04-08 孙正阳 Shuttlecock serving device of robot
CN105288977A (en) * 2015-11-20 2016-02-03 北方工业大学 Badminton robot's storage ball, branch ball and goal integrated device
KR20170012958A (en) * 2015-07-27 2017-02-06 이수열 Badminton exercise device
CN106404335A (en) * 2016-09-27 2017-02-15 徐卫翔 Racket rotation speed-changing hitting method for badminton trial playing machine
CN106512365A (en) * 2016-12-21 2017-03-22 上海第二工业大学 Automatic emitting device for shuttlecock training
CN106730717A (en) * 2016-12-19 2017-05-31 绍兴凯健科技有限公司 A kind of badminton companion trainer device people
CN108528819A (en) * 2018-02-11 2018-09-14 大田县福韬体育用品有限公司 A kind of manufacturing and processing equipment for shuttlecock
CN108543298A (en) * 2018-05-14 2018-09-18 北京工业大学 Badminton service robot based on firearms principle
CN110038283A (en) * 2019-04-17 2019-07-23 金陵科技学院 A kind of oscillating-type table tennis practice device for making sportsman walk about
KR20190120522A (en) * 2018-04-16 2019-10-24 손서용 A shuttlecock collection automatic device
CN111729278A (en) * 2020-07-09 2020-10-02 徐州工业职业技术学院 Badminton training device and control method
CN112107840A (en) * 2020-10-12 2020-12-22 安徽华羽体育用品有限公司 Trial play device for shuttlecocks
CN113350764A (en) * 2021-07-21 2021-09-07 南昌工程学院 Badminton intelligence training ware

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492057A (en) * 2014-12-16 2015-04-08 孙正阳 Shuttlecock serving device of robot
KR20170012958A (en) * 2015-07-27 2017-02-06 이수열 Badminton exercise device
CN105288977A (en) * 2015-11-20 2016-02-03 北方工业大学 Badminton robot's storage ball, branch ball and goal integrated device
CN106404335A (en) * 2016-09-27 2017-02-15 徐卫翔 Racket rotation speed-changing hitting method for badminton trial playing machine
CN106730717A (en) * 2016-12-19 2017-05-31 绍兴凯健科技有限公司 A kind of badminton companion trainer device people
WO2018113641A1 (en) * 2016-12-19 2018-06-28 绍兴凯健科技有限公司 Badminton training partner robot
CN106512365A (en) * 2016-12-21 2017-03-22 上海第二工业大学 Automatic emitting device for shuttlecock training
CN106512365B (en) * 2016-12-21 2019-07-02 上海第二工业大学 A kind of shuttlecock playing training automatic launcher
CN108528819A (en) * 2018-02-11 2018-09-14 大田县福韬体育用品有限公司 A kind of manufacturing and processing equipment for shuttlecock
KR20190120522A (en) * 2018-04-16 2019-10-24 손서용 A shuttlecock collection automatic device
CN108543298A (en) * 2018-05-14 2018-09-18 北京工业大学 Badminton service robot based on firearms principle
CN110038283A (en) * 2019-04-17 2019-07-23 金陵科技学院 A kind of oscillating-type table tennis practice device for making sportsman walk about
CN111729278A (en) * 2020-07-09 2020-10-02 徐州工业职业技术学院 Badminton training device and control method
CN112107840A (en) * 2020-10-12 2020-12-22 安徽华羽体育用品有限公司 Trial play device for shuttlecocks
CN112107840B (en) * 2020-10-12 2021-06-08 安徽华羽体育用品有限公司 Trial play device for shuttlecocks
CN113350764A (en) * 2021-07-21 2021-09-07 南昌工程学院 Badminton intelligence training ware

Similar Documents

Publication Publication Date Title
KR20130140345A (en) Device for creating a return air flow in an apparatus for shooting a badminton ball
CN204622838U (en) A kind of electronics smoke pipe blanking and laser flying marking arrangement
JP6650893B2 (en) Automatic winder yarn feeding bobbin mounting system and mounting method
US7073312B2 (en) Device for transferring articles in a controlled configuration from a feeding line to a receiving line
RU2018133265A (en) A ball launcher and a ball game system comprising such a ball launcher
CN101143026A (en) Filter tip bar pneumatic conveying device
KR101721023B1 (en) An food supply system for fish-farm
CN107444896A (en) A kind of screw conveyer
JP2014025191A (en) Divice for changing direction of cup or wound pipe
KR20220041407A (en) Screw feeder
CN105293031A (en) Conveying device capable of dividing one row of bottles into two rows in liquid filling production line
CN110254877B (en) Needle cylinder slideway device and rotary rod labeling machine
CN103948987B (en) The regulating wheel automatic installation apparatus of transfusion device flow regulator
US3099120A (en) Apparatus for the removal one by one of bottle-caps from a stack and positioning them
CN204568598U (en) A kind of conveying shock absorber of filter stick
ITTO20080920A1 (en) MACHINE FOR ORIENTATION OF OBJECTS, IN PARTICULAR TAPPERS
JP5282858B2 (en) Chip tape direct loading means
CN208648051U (en) A kind of screw feeding device
US20150118347A1 (en) Preform supplying apparatus
CN203959327U (en) Spring automatic charging device
KR20110013112A (en) Device of ball-supply of golf exercise machine
CN207142262U (en) A kind of screw conveyer
CN210102630U (en) Needle cylinder slideway device and rotary rod labeling machine
CN210819838U (en) Double-layer ribbon ultrasonic shearing machine
CN204135658U (en) Small-sized screw separating conveyer

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right