Cotton swab processing and feeding equipment

Abstract

The utility model discloses cotton swab processing and feeding equipment which comprises a base, a transmission feeding mechanism is installed at the top of the base and used for conveying cotton swabs, an L-shaped supporting rod is fixedly connected to the left side of the top of the base, and a vibration material guiding mechanism is fixedly installed at the right end of the L-shaped supporting rod. The bottom of the vibration material guide mechanism is fixedly communicated with a transparent material guide pipe which is obliquely arranged, the vibration material guide mechanism is used for discharging materials in a vibration mode and effectively guiding and discharging cotton swabs into the transparent material guide pipe, a plurality of cotton swabs are arranged in the transparent material guide pipe, and a photoelectric sensor matched with the transmission feeding mechanism is fixedly installed on the left side of the bottom end of the transparent material guide pipe. According to the cotton swab conveying device, a series of structures are arranged, a plurality of cotton swabs can be sequentially placed on the top of the conveying belt at equal intervals, so that the cotton swabs can be conveyed at equal intervals, the situation that the cotton swabs are stacked together can be effectively reduced in an equal-interval conveying mode, workers do not need to separate and arrange the cotton swabs subsequently, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cotton swab processing and feeding equipment, in particular to a cotton swab processing and feeding equipment. Background Art

[0002] A cotton swab, also known as a swab, needs to use feeding equipment to transfer the cotton swab to different processes for processing during the processing and production process. The existing cotton swab processing and feeding equipment usually uses a conveyor belt for conveying and feeding. The method of directly placing the cotton swabs on the conveyor belt for conveying cannot convey the cotton swabs at equal intervals, which will cause a situation where multiple cotton swabs are stacked together. When entering the next process, subsequent manual sorting and separation of the cotton swabs are required, increasing the labor intensity. For this reason, we have proposed a cotton swab processing and feeding equipment. Content of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a cotton swab processing and feeding equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A cotton swab processing and feeding equipment, including a base, a transmission and feeding mechanism is installed on the top of the base, and the transmission and feeding mechanism is used for conveying cotton swabs. A left side of the top of the base is fixedly connected with an L-shaped support rod, and a vibration and guiding mechanism is fixedly installed at the right end of the L-shaped support rod. A bottom of the vibration and guiding mechanism is communicated and fixed with an inclined transparent guiding tube. The vibration and guiding mechanism is used for vibrating and discharging materials, and effectively guiding and discharging the cotton swabs into the transparent guiding tube. A plurality of cotton swabs are arranged in the transparent guiding tube. A left side of a bottom end of the transparent guiding tube is fixedly installed with a photoelectric sensor that cooperates with the transmission and feeding mechanism. A bottom of the lowermost cotton swab in the transparent guiding tube is movably contacted with a first limiting mechanism, and the first limiting mechanism is used for limiting the lowermost cotton swab. A bottom of the second-lowermost cotton swab in the transparent guiding tube is movably contacted with a second limiting mechanism, and the second limiting mechanism is used for limiting the second-lowermost cotton swab. By means of two-location limiting, the situation that multiple cotton swabs fall out simultaneously can be effectively reduced. An inner left side wall of the L-shaped support rod is fixedly installed with a mounting seat, and the mounting seat sleeves on the first limiting mechanism and the second limiting mechanism. A top of the mounting seat is fixedly connected with a controller, and the controller is electrically connected with the transmission and feeding mechanism, the photoelectric sensor, the first limiting mechanism and the second limiting mechanism. The controller receives the signal of the photoelectric sensor to control the transmission and feeding mechanism, the first limiting mechanism and the second limiting mechanism. The control principle is the prior art and will not be specifically described here.

[0006] Preferably, the transmission and feeding mechanism includes two support plates fixedly connected to the top of the base. Two transmission rollers are rotatably installed between the two support plates. The same conveyor belt is drivingly connected to the two transmission rollers. The transmission rollers and the conveyor belt cooperate to convey the cotton swabs to the right. On the front side of the front support plate, a driving motor is fixedly connected to the left side. The driving motor is electrically connected to the controller. The rear end of the output shaft of the driving motor is fixedly connected to the front end of the left transmission roller. A plurality of groups of limiting components are fixedly connected to the outer side of the conveyor belt at equal intervals. The limiting components are used for separating and limiting the cotton swabs. The limiting component includes two limiting blocks fixedly connected to the outer side of the conveyor belt. The left limiting block of the two limiting blocks in the same group of limiting components is made of a reflective material. The left limiting block cooperates with the photoelectric sensor. The limiting block made of the reflective material can reflect light to the photoelectric sensor, and the photoelectric sensor will receive the reflected light signal. The photoelectric sensor consists of two parts, a transmitter and a receiver. By reflecting the light beam to the limiting block, the limiting block reflects it back and is received by the receiver.

[0007] Preferably, the vibration feeding mechanism includes a conical feeding hopper. An elastic block is fixedly connected between the left side of the conical feeding hopper and the right end of the L-shaped support rod. The bottom of the conical feeding hopper is fixedly connected and communicated with an elastic rubber sleeve. The bottom of the elastic rubber sleeve is fixedly connected and communicated with the top end of the transparent feeding pipe. Vibration exciters are fixedly connected to both sides of the conical feeding hopper. The vibration exciters vibrate the conical feeding hopper. At the same time, with the cooperation of the elastic force of the elastic block and the elastic rubber sleeve, the conical feeding hopper generates vibration. Under the vibration force, the cotton swabs can be smoothly vibrated and guided into the transparent feeding pipe.

[0008] Preferably, the first limiting mechanism includes a first limiting plate. The right side of the top of the first limiting plate is in movable contact with the bottom of the lowermost cotton swab in the transparent feeding pipe. The first limiting plate is used for limiting the lowermost cotton swab. An installation groove is formed on the left side of the mounting seat. A first electric telescopic rod is fixedly connected to the inner wall of the bottom of the installation groove. The left side of the first limiting plate extends into the installation groove and is fixedly connected to the right end of the output shaft of the first electric telescopic rod. The first electric telescopic rod is electrically connected to the controller. The controller controls the first electric telescopic rod and controls it to close or reverse start 3 seconds after the first electric telescopic rod is turned on.

[0009] Preferably, the second limiting mechanism includes an L-shaped limiting plate. The inner wall of the bottom of the L-shaped limiting plate is in movable contact with the bottom of the second-lowest cotton swab in the transparent feeding pipe. The L-shaped limiting plate limits the second-lowest cotton swab. A second electric telescopic rod is fixedly connected to the inner wall of the top of the installation groove. The left side of the L-shaped limiting plate extends into the installation groove and is fixedly connected to the right end of the output shaft of the second electric telescopic rod. The second electric telescopic rod is electrically connected to the controller. The controller controls the second electric telescopic rod and controls it to close or reverse start 3 seconds after the second electric telescopic rod is turned on.

[0010] Preferably, the distance between the bottom end of the transparent guide tube and the top of the limiting block below it is 1-3 mm.

[0011] Preferably, a support cross bar is fixedly connected between the left inner wall of the L-shaped support rod and the left side of the transparent guide tube. The support cross bar is used to support the transparent guide tube. The distance between the left and right inner walls of the transparent guide tube is adapted to the diameter of the cotton swab. The distance between the front and rear inner walls of the transparent guide tube is longer than the front and rear length of the cotton swab. The exceeded length of the distance between the front and rear inner walls of the transparent guide tube does not exceed one-fifth of the total length of the cotton swab, so that the cotton swabs inside the transparent guide tube can be arranged orderly.

[0012] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the setting of the transmission feeding mechanism, the operation of conveying and feeding the cotton swabs can be carried out;

[0014] 2. Through the cooperation of the limiting component, the controller, the first limiting mechanism, the second limiting mechanism and the guide tube, the cotton swabs can be placed on the conveyor belt at equal intervals in sequence. And with the setting of the transmission feeding mechanism, the cotton swabs can be conveyed at equal intervals, improving the feeding effect;

[0015] Through the setting of a series of structures, the present utility model can place multiple cotton swabs on the top of the conveyor belt at equal intervals in sequence, so as to convey the cotton swabs at equal intervals. By means of the equal interval conveying method, the situation that multiple cotton swabs are stacked together can be effectively reduced, and there is no need for personnel to separately sort them later, reducing the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a cotton swab processing and feeding device proposed by the present utility model;

[0017] Figure 2 is Figure 1 the sectional structural diagram of;

[0018] Figure 3 is Figure 2 the enlarged structural diagram of part A in;

[0019] In the figure: 100, base; 101, support plate; 102, driving roller; 103, conveyor belt; 104, driving motor; 1, L-shaped support rod; 2, transparent guide tube; 3, elastic block; 4, conical guide hopper; 5, vibrator; 6, elastic rubber sleeve; 7, mounting seat; 8, limiting block; 9, first limiting plate; 10, L-shaped limiting plate; 11, mounting groove; 12, second electric telescopic rod; 13, controller; 14, photoelectric sensor; 15, support cross bar; 16, first electric telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figures 1-3 , a cotton swab processing and feeding device, including a base 100. A transmission and feeding mechanism is installed on the top of the base 100. The transmission and feeding mechanism includes two support plates 101 fixedly connected to the top of the base 100. Two transmission rollers 102 are rotatably installed between the two support plates 101. Pins are fixedly connected to the front end and the rear end of the transmission roller 102. Two bearings are fixedly embedded on the side of the two support plates 101 close to each other. The inner side of the inner ring of the bearing is fixedly connected to the outer side of the corresponding pin. The bearing and the pin cooperate to achieve the effect of rotatably installing the transmission roller 102. The same conveyor belt 103 is drivingly connected to the two transmission rollers 102. The transmission roller 102 and the conveyor belt 103 cooperate to convey the cotton swabs to the right. The left side of the front side of the front support plate 101 is fixedly connected with a driving motor 104. The rear end of the output shaft of the driving motor 104 is fixedly connected to the front end of the left front pin. A plurality of groups of limiting components are fixedly connected to the outer side of the conveyor belt 103 at equal intervals. The limiting components are used for separating and limiting the cotton swabs. The limiting components include two limiting blocks 8 fixedly connected to the outer side of the conveyor belt 103. The left limiting block 8 in the two limiting blocks 8 in the same group of limiting components is made of a reflective material;

[0022] The left side of the top of the base 100 is fixedly connected with an L-shaped support rod 1. A vibration feeding mechanism is fixedly installed at the right end of the L-shaped support rod 1. The vibration feeding mechanism includes a conical feeding hopper 4. An elastic block 3 is fixedly connected between the left side of the conical feeding hopper 4 and the right end of the L-shaped support rod 1. The bottom of the conical feeding hopper 4 is fixedly connected and communicated with an elastic rubber sleeve 6. Vibrators 5 are fixedly connected to both sides of the conical feeding hopper 4;

[0023] The bottom of the elastic rubber sleeve 6 is fixedly connected with a transparent guide pipe 2 which is inclined. The vibrator 5 vibrates the conical feed hopper 4. At the same time, with the cooperation of the elastic force of the elastic block 3 and the elastic rubber sleeve 6, the conical feed hopper 4 generates vibration. Under the vibration force, the cotton swabs can be smoothly guided and vibrated into the transparent guide pipe 2. The distance between the bottom end of the transparent guide pipe 2 and the top of the limiting block 8 located below it is 1-3 mm. A support cross bar 15 is fixedly connected between the left inner wall of the L-shaped support rod 1 and the left side of the transparent guide pipe 2. The support cross bar 15 is used to support the transparent guide pipe 2. A plurality of cotton swabs are arranged in the transparent guide pipe 2. The distance between the left and right inner walls of the transparent guide pipe 2 is adapted to the diameter of the cotton swab. The distance between the front and rear inner walls of the transparent guide pipe 2 is longer than the front and rear length of the cotton swab. The exceeded length of the distance between the front and rear inner walls of the transparent guide pipe 2 does not exceed one-fifth of the total length of the cotton swab, so that the cotton swabs inside the transparent guide pipe 2 can be arranged orderly. The left side of the bottom end of the transparent guide pipe 2 is fixedly installed with a photoelectric sensor 14 which cooperates with the limiting block 8. The limiting block 8 made of reflective material can reflect light to the photoelectric sensor 14, and the photoelectric sensor 14 will receive the reflected light signal. The photoelectric sensor 14 is composed of a transmitter and a receiver. By reflecting the light beam to the limiting block 8, the reflected light by the limiting block 8 is received by the receiver. Its principle is the prior art and will not be specifically described here;

[0024] The bottom of the lowermost cotton swab located in the transparent guide pipe 2 is in movable contact with a first limiting mechanism. The left inner wall of the L-shaped support rod 1 is fixedly installed with a mounting seat 7. The first limiting mechanism includes a first limiting plate 9. The right side of the top of the first limiting plate 9 is in movable contact with the bottom of the lowermost cotton swab in the transparent guide pipe 2. The first limiting plate 9 is used to limit the lowermost cotton swab. An installation groove 11 is opened on the left side of the mounting seat 7. A first electric telescopic rod 16 is fixedly connected to the bottom inner wall of the installation groove 11. The left side of the first limiting plate 9 extends into the installation groove 11 and is fixedly connected to the right end of the output shaft of the first electric telescopic rod 16. A first through hole is opened on the left inner wall of the transparent guide pipe 2, and a second through hole is opened on the right inner wall of the installation groove 11. The inner walls of the first through hole and the second through hole are both in movable contact with the outer side of the first limiting plate 9. The first through hole and the second through hole are both used for the first limiting plate 9 to pass through;

[0025] The bottom of the penultimate cotton swab in the transparent material guiding tube 2 is in movable contact with a second limiting mechanism. The second limiting mechanism includes an L-shaped limiting plate 10. The inner wall of the bottom of the L-shaped limiting plate 10 is in movable contact with the bottom of the penultimate cotton swab in the transparent material guiding tube 2. The L-shaped limiting plate 10 restricts the penultimate cotton swab. A second electric telescopic rod 12 is fixedly connected to the inner wall of the top of the installation groove 11. The left side of the L-shaped limiting plate 10 extends into the installation groove 11 and is fixedly connected to the right end of the output shaft of the second electric telescopic rod 12. A third through hole is provided on the inner wall of the left side of the transparent material guiding tube 2, and a fourth through hole is provided on the inner wall of the right side of the installation groove 11. The inner walls of the third through hole and the fourth through hole are both in movable contact with the outer side of the L-shaped limiting plate 10. Both the third through hole and the fourth through hole are used for the L-shaped limiting plate 10 to pass through;

[0026] A controller 13 is fixedly connected to the top of the mounting seat 7. The controller 13 is electrically connected to the drive motor 104, the photoelectric sensor 14, the first electric telescopic rod 16 and the second electric telescopic rod 12. The controller 13 receives the signal of the photoelectric sensor 14 to control the drive motor 104, the first electric telescopic rod 16 and the second electric telescopic rod 12. Its control principle is prior art and will not be specifically described here. Through the setting of a series of structures, the utility model can place multiple cotton swabs on the top of the conveyor belt 103 at equal intervals in sequence, so as to convey the cotton swabs at equal intervals. By the way of equal interval conveying, the situation that multiple cotton swabs are stacked together can be effectively reduced, and there is no need for personnel to separate and sort them separately later, reducing the labor intensity.

[0027] Working principle: When in use, the opening and closing time and the opening stroke of the drive motor 104, the first electric telescopic rod 16 and the second electric telescopic rod 12 are preset through the controller 13 in advance, and after the first electric telescopic rod 16 starts and closes forward, the second electric telescopic rod 12 is controlled to start in reverse;

[0028] When processing and feeding cotton swabs, reverse-start the second electric telescopic rod 12. The output shaft of the second electric telescopic rod 12 drives the L-shaped limiting plate 10 to move leftward and move out of the transparent guide pipe 2. Place the cotton swabs to be processed in the conical guide hopper 4. The cotton swabs slide into the transparent guide pipe 2 through the elastic rubber sleeve 6. At the same time, turn on two vibrators 5. The vibrators 5 vibrate the conical guide hopper 4, causing the conical guide hopper 4 to vibrate. Under the vibration force, the cotton swabs can effectively slide into the transparent guide pipe 2, reducing the situation of cotton swab jamming. Since the distance between the left and right inner walls of the transparent guide pipe 2 is adapted to the diameter of the cotton swabs, the cotton swabs in the transparent guide pipe 2 are discharged sequentially from top to bottom, and the bottom of the cotton swab at the bottom is in movable contact with the top right side of the first limiting plate 9. At this time, the first limiting plate 9 restricts the bottommost cotton swab. Immediately start the second electric telescopic rod 12 forward. The output shaft of the second electric telescopic rod 12 drives the L-shaped limiting plate 10 to move rightward into the transparent guide pipe 2. When the bottom inner wall of the L-shaped limiting plate 10 contacts the bottom of the second-to-last cotton swab, stop the second electric telescopic rod 12. At this time, the L-shaped limiting plate 10 restricts the second-to-last cotton swab and the cotton swabs above it. Immediately turn on the drive motor 104. The output shaft of the drive motor 104 drives the left transmission roller 102 to rotate. The left transmission roller 102 drives the right transmission roller 102 to rotate through the conveyor belt 103. The two transmission rollers 102 convey the conveyor belt 103 to the right. The conveyor belt 103 drives a plurality of limiting blocks 8 to move rightward. When a corresponding limiting block 8 made of a reflective material aligns with the photoelectric sensor 14, the photoelectric sensor 14 emits a light beam and is reflected back by the reflective material limiting block 8 and received by the photoelectric sensor 14. The photoelectric sensor 14 transmits the signal to the controller 13. The controller 13 controls the drive motor 104 to turn off and controls the first electric telescopic rod 16 to reverse-start. The output shaft of the first electric telescopic rod 16 drives the first limiting plate 9 to move leftward to release the restriction on the bottommost cotton swab. At this time, under gravity, the cotton swab falls between the corresponding two limiting blocks 8. After the first electric telescopic rod 16 reversely starts for 3 seconds, the controller 13 controls the first electric telescopic rod 16 to start forward, so that the first limiting plate 9 moves rightward to reset. At this time, the controller 13 also controls the drive motor 104 to start again to continue driving the conveyor belt 103 to the right. At the same time, it controls the second electric telescopic rod 12 to reverse-start. The output shaft of the second electric telescopic rod 12 drives the L-shaped limiting plate 10 to move leftward to release the restriction on the cotton swab in contact with it. At this time, the cotton swab moves downward to be in movable contact with the top of the first limiting plate 9. At the same time, the cotton swabs above it follow and move downward in sequence. After the second electric telescopic rod 12 reversely starts for 3 seconds, the controller 13 controls the second electric telescopic rod 12 to start forward, so that the L-shaped limiting plate 10 moves rightward to be in movable contact with the bottom of the second-to-last cotton swab at this time, and the L-shaped limiting plate 10 restricts the cotton swab.By setting the first limiting plate 9 and the L-shaped limiting plate 10 to limit the lowermost and the penultimate cotton swabs simultaneously, the situation where multiple cotton swabs fall out simultaneously can be effectively avoided, and the falling stability of the cotton swabs can be improved.

[0029] When the other limiting block 8 made of a reflective material moves to align with the photoelectric sensor 14 again, the controller 13 will control the driving motor 104 to close again and control the first electric telescopic rod 16 to open in the reverse direction again, removing the occlusion of the lowermost cotton swab, so that the cotton swab falls between the corresponding two limiting blocks 8 again. By analogy, multiple cotton swabs can be placed on the conveyor belt 103 at equal intervals for conveying. Thus, the cotton swabs can be conveyed at equal intervals. By means of equal-interval conveying, the situation where multiple cotton swabs are stacked together can be effectively reduced, eliminating the need for subsequent manual separation and arrangement by personnel and reducing the labor intensity.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, making equivalent substitutions or changes should be covered by the protection scope of the present invention.

Claims

1. A cotton swab processing and feeding device, comprising a base (100), characterized in that: A transmission feeding mechanism is installed on the top of the base (100); an L-shaped support rod (1) is fixedly connected to the left side of the top of the base (100); a vibration guide mechanism is fixedly installed on the right end of the L-shaped support rod (1); a transparent guide tube (2) arranged obliquely is connected and fixed to the bottom of the vibration guide mechanism; a plurality of cotton swabs are arranged in the transparent guide tube (2); a photoelectric sensor (14) matched with the transmission feeding mechanism is fixedly installed on the left side of the bottom end of the transparent guide tube (2); the bottom of the cotton swab located at the bottom of the transparent guide tube (2) is movably in contact with the first limiting mechanism; the bottom of the second to last cotton swab located in the transparent guide tube (2) is movably in contact with the second limiting mechanism; a mounting seat (7) is fixedly installed on the left inner wall of the L-shaped support rod (1); the mounting seat (7) is sleeved on the first limiting mechanism and the second limiting mechanism; a controller (13) is fixedly connected to the top of the mounting seat (7); the controller (13) is electrically connected to the transmission feeding mechanism, the photoelectric sensor (14), the first limiting mechanism and the second limiting mechanism.

2. A cotton swab processing and feeding device according to claim 1, characterized in that: The transmission feeding mechanism comprises two support plates (101) fixedly connected to the top of the base (100), two transmission rollers (102) are rotatably installed between the two support plates (101), and the two transmission rollers (102) are transmission-connected to the same conveyor belt (103), a driving motor (104) is fixedly connected to the left side of the front side of the support plate (101) located on the front side, the driving motor (104) is electrically connected to the controller (13), the rear end of the output shaft of the driving motor (104) is fixedly connected to the front end of the left transmission roller (102), and a plurality of groups of limit assemblies are fixedly connected to the outer side of the conveyor belt (103) at equal intervals, and the limit assemblies comprise two limit blocks (8) fixedly connected to the outer side of the conveyor belt (103), and the limit block (8) on the left side of the two limit blocks (8) located on the same group of limit assemblies is made of reflective material, and the limit block (8) on the left side cooperates with the photoelectric sensor (14).

3. A cotton swab processing and feeding device according to claim 2, characterized in that: The vibrating material guiding mechanism comprises a conical material guiding hopper (4), an elastic block (3) is fixedly connected between the left side of the conical material guiding hopper (4) and the right end of the L-shaped support rod (1), an elastic rubber sleeve (6) is connected and fixed to the bottom of the conical material guiding hopper (4), the bottom of the elastic rubber sleeve (6) is connected and fixed to the top of the transparent material guiding tube (2), and both sides of the conical material guiding hopper (4) are fixedly connected to a vibrator (5).

4. A cotton swab processing and feeding device according to claim 3, characterized in that: The first limiting mechanism comprises a first limiting plate (9), the top right side of the first limiting plate (9) is in active contact with the bottom of the cotton swab at the bottom of the transparent material guide tube (2), a mounting groove (11) is provided on the left side of the mounting seat (7), a first electric telescopic rod (16) is fixedly connected to the bottom inner wall of the mounting groove (11), the left side of the first limiting plate (9) extends into the mounting groove (11) and is fixedly connected to the right end of the output shaft of the first electric telescopic rod (16), and the first electric telescopic rod (16) is electrically connected to the controller (13).

5. The cotton swab processing and feeding equipment according to claim 4, characterized in that: The second limiting mechanism comprises an L-shaped limiting plate (10), the bottom inner wall of the L-shaped limiting plate (10) is in active contact with the bottom of the second-to-last cotton swab in the transparent material guide tube (2), a second electric telescopic rod (12) is fixedly connected to the top inner wall of the mounting groove (11), the left side of the L-shaped limiting plate (10) extends into the mounting groove (11) and is fixedly connected to the right end of the output shaft of the second electric telescopic rod (12), and the second electric telescopic rod (12) is electrically connected to the controller (13).

6. The cotton swab processing and feeding equipment according to claim 2, characterized in that: The distance between the bottom end of the transparent material guiding tube (2) and the top of the limiting block (8) located below the transparent material guiding tube (2) is 1-3 mm.

7. The cotton swab processing and feeding equipment according to claim 1, characterized in that: A supporting cross bar (15) is fixedly connected between the left inner wall of the L-shaped support rod (1) and the left side of the transparent material guide tube (2); the distance between the left and right inner walls of the transparent material guide tube (2) is adapted to the diameter of the cotton swab; the distance between the front and rear inner walls of the transparent material guide tube (2) is longer than the front and rear length of the cotton swab; and the excess length of the distance between the front and rear inner walls of the transparent material guide tube (2) does not exceed one fifth of the total length of the cotton swab.

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