CN215744350U

CN215744350U - Needle head cleaning device and dispensing equipment

Info

Publication number: CN215744350U
Application number: CN202121964278.2U
Authority: CN
Inventors: 肖丹; 陆瑞; 徐永康
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-08
Anticipated expiration: 2031-08-20

Abstract

The utility model belongs to the technical field of dispensing, and discloses a needle head cleaning device and dispensing equipment. The needle cleaning device comprises: the two conveying mechanisms are configured to convey the two cleaning belts in a one-to-one correspondence manner, and an accommodating space is formed at one side of the two cleaning belts, which is close to each other, and is used for accommodating the needle heads to be cleaned; the clamping mechanism is configured to clamp one side of the two cleaning belts far away from each other, so that the side of the two cleaning belts close to each other can be abutted against the needle head to be cleaned respectively for cleaning the needle head to be cleaned; an adjustment mechanism configured to adjust a tension of the cleaning belt. This syringe needle cleaning device through setting up adjustment mechanism, makes the tensile force of cleaning tape adjustable, avoids the cleaning tape tension or the mistake pine to cause unusually, guarantees the position stability of cleaning tape, makes the cleaning tape can accurately clean the syringe needle of treating cleaning, and clean effectual, and need not to shut down the back and carry out position adjustment to the cleaning tape, and the clean process is continuous, incessant, and clean production efficiency is higher.

Description

Needle head cleaning device and dispensing equipment

Technical Field

The utility model relates to the technical field of dispensing, in particular to a needle head cleaning device and dispensing equipment.

Background

The glue dispenser is used for accurately positioning, injecting and coating glue to a preset position of a product by using a needle head and fixing parts. When using the hot melt adhesive to carry out the point and gluing, because the hot melt adhesive can solidify, can leave the cull on the syringe needle, the viscidity of hot melt adhesive is stronger simultaneously, has the wire drawing phenomenon easily, leads to clean the difficulty, causes the pollution to the product easily, causes the product to scrap the abnormal conditions such as.

In order to solve the problem, the following methods are adopted to remove the residual glue:

firstly, manual wiping is performed, an operator wipes the needles one by one, the workload is large, the wiping force cannot be grasped, and the needles are easily damaged or offset;

secondly, vacuum adsorption, which cannot completely remove residual glue for residual glue with high viscosity, has poor glue removal quality;

thirdly, the cleaning belt is wiped, the cleaning belt is generally a coil material, the tension of the cleaning belt cannot be guaranteed in the releasing and recovering processes of the cleaning belt, the unwinding condition of the cleaning belt is easily caused, the wiping effect of the needle head is affected, and when the cleaning belt is unwound and deviates from a position, the machine needs to be stopped to adjust the position of the cleaning belt, and the production efficiency of cleaning is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a needle cleaning device which is used for wiping a needle and ensures the position stability of a cleaning belt.

The utility model also aims to provide the dispensing equipment which is good in cleaning effect and high in cleaning production efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a needle cleaning device comprising:

the two conveying mechanisms are configured to convey two cleaning belts in a one-to-one correspondence mode, and an accommodating space is formed at one side, close to each other, of the two cleaning belts and is used for accommodating a needle head to be cleaned;

the clamping mechanism is configured to clamp one side of the two cleaning belts far away from each other, so that one side of the two cleaning belts close to each other can be abutted against the needle head to be cleaned respectively for cleaning the needle head to be cleaned;

an adjustment mechanism configured to adjust a tension of the cleaning belt.

Preferably, the conveying mechanism includes:

the discharging assembly is used for releasing the cleaning belt;

and the material receiving assembly is used for recovering the cleaning belt, and the cleaning belt is wound on the material discharging assembly and the material receiving assembly respectively.

Preferably, the discharging assembly includes a driving source and a discharging roller, the discharging roller is used for winding the cleaning belt, and the driving source can drive the discharging roller to rotate.

Preferably, the receiving assembly comprises:

the material receiving roller is used for winding the cleaning belt;

the rotating shaft penetrates through the material receiving roller and can rotate relative to the clamping mechanism;

the bearing sleeve is arranged outside the rotating shaft and positioned between the rotating shaft and the rotating seat.

Preferably, the adjusting mechanism includes a locking member, and the locking member is sleeved on the rotating shaft and can press the bearing into the rotating seat to limit the rotation of the bearing.

Preferably, the adjusting mechanism further includes a friction component, a knob and an elastic member, the rotating shaft is respectively inserted into the friction component, the knob and the elastic member, the knob can rotate relative to the rotating shaft and move along the axial direction of the rotating shaft, so that two ends of the elastic member can respectively abut against the friction component and the knob.

Preferably, the clamping mechanism includes a clamping drive source and two clamping jaws, the two clamping jaws are respectively arranged on the outer side of one side of the two cleaning belts far away from each other, and the clamping drive source can drive the two clamping jaws to move towards or away from each other.

Preferably, two buffer parts are correspondingly arranged on the two clamping jaws one by one, and the two buffer parts can correspondingly abut against the needle head to be cleaned through the two cleaning belts one by one.

Preferably, the cleaning device further comprises a waste glue collecting mechanism for collecting waste glue in the needle head to be cleaned.

In order to achieve the above object, the present invention further provides a dispensing apparatus, including a dispensing mechanism and the above needle cleaning device, wherein the needle to be cleaned of the dispensing mechanism is used for dispensing a workpiece to be processed, and the needle cleaning device is used for cleaning the needle to be cleaned after dispensing.

The utility model has the beneficial effects that:

according to the needle head cleaning device provided by the utility model, the two conveying mechanisms are configured to convey the two cleaning belts in a one-to-one correspondence manner, the two conveying mechanisms realize the conveying of the two cleaning belts, and the cleaning belts can move. The two cleaning belts are close to one side each other to provide a certain containing space for the needle head to be cleaned, the clamping mechanism clamps one side of the two cleaning belts away from each other and pushes the two cleaning belts to move towards the direction close to each other, so that one sides of the two cleaning belts close to each other can be respectively abutted to the needle head to be cleaned, and glue removal of the needle head to be cleaned is realized along with the movement of the cleaning belts, so that the aim of cleaning is fulfilled. Through setting up adjustment mechanism, make the tensile force of cleaning tape adjustable, avoid the cleaning tape tension or the mistake pine to cause unusually, guarantee the positional stability of cleaning tape, make the cleaning tape can accurately clean and treat the cleaning syringe needle, clean effectual, and need not to shut down the back and carry out position adjustment to the cleaning tape, the cleaning process is continuous, incessant, clean production efficiency is higher.

According to the dispensing equipment provided by the utility model, the needle head cleaning device is utilized to realize the glue removal of the needle head to be cleaned, compared with the manual wiping mode in the prior art, the labor intensity of operators is reduced, the needle head to be cleaned is not easy to damage, and the service life is prolonged; compared with the existing vacuum adsorption mode, the method can effectively clean the waste glue remained on the needle head to be cleaned, and has good cleaning effect.

Drawings

FIG. 1 is a schematic view of the construction of the needle cleaning device of the present invention;

FIG. 2 is a schematic view of the adjustment mechanism of the needle cleaning device of the present invention;

fig. 3 is a schematic view of the structure of the clamping mechanism in the needle cleaning device of the present invention.

In the figure:

1. a conveying mechanism; 2. a clamping mechanism; 3. an adjustment mechanism; 4. a waste rubber collecting mechanism; 5. a position sensor; 6. a frame;

11. a discharging component; 111. a drive source; 112. a discharge roller;

12. a material receiving assembly; 121. a material receiving roller; 122. a rotating shaft; 123. a rotating base; 124. a bearing;

21. a clamping drive source; 22. a clamping jaw; 23. a buffer member;

31. a locking member; 32. a friction assembly; 321. a friction seat; 322. a friction plate; 33. a knob; 34. an elastic member.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

This embodiment provides a glue dispensing equipment, and this glue dispensing equipment constructs including dispensing mechanism, and dispensing mechanism supplies gluey subassembly and syringe needle including supplying, supplies gluey subassembly to communicate in the syringe needle, supplies gluey subassembly to be used for providing hot melt adhesive for the syringe needle, and the syringe needle is used for treating the work piece of processing and carries out the point glue. After the dispensing is completed, the hot melt adhesive will solidify and remain on the needle, and thus the needle at this time is the needle to be cleaned.

In order to avoid the situation that the needle head to be cleaned pollutes the workpiece to be processed and causes high rejection rate, the needle head to be cleaned needs to be cleaned. In order to solve the problem, the existing cleaning method adopts a manual wiping or vacuum adsorption mode to clean, and the manual wiping has large workload and is easy to damage; the vacuum adsorption is difficult to completely remove the residual glue with larger viscosity, and the cleaning effect is poor.

In order to solve the problem, the dispensing equipment further comprises a needle head cleaning device, and the needle head cleaning device is used for cleaning a needle head to be cleaned after dispensing is completed. The needle head cleaning device is used for removing glue of the needle head to be cleaned, compared with the manual wiping mode in the prior art, the labor intensity of operators is reduced, the needle head to be cleaned is not easy to damage, and the service life is prolonged; compared with the existing vacuum adsorption mode, the method can effectively clean the waste glue remained on the needle head to be cleaned, and has good cleaning effect.

The embodiment further provides a needle cleaning device, as shown in fig. 1, the needle cleaning device includes a frame 6, a clamping mechanism 2, an adjusting mechanism 3 and two conveying mechanisms 1, the clamping mechanism 2, the adjusting mechanism 3 and the two conveying mechanisms 1 are respectively arranged on the frame 6, and the frame 6 plays a role in integral support. The two conveying mechanisms 1 are configured to convey the two cleaning belts in a one-to-one correspondence manner, an accommodating space is formed on one side, close to each other, of the two cleaning belts, the accommodating space is used for accommodating the needle head to be cleaned, and the clamping mechanism 2 is configured to clamp one side, far away from each other, of the two cleaning belts, so that one sides, close to each other, of the two cleaning belts can abut against the needle head to be cleaned respectively and are used for cleaning the needle head to be cleaned.

According to the needle cleaning device provided by the embodiment, the two conveying mechanisms 1 are configured to convey the two cleaning belts in a one-to-one correspondence manner, the two conveying mechanisms 1 realize the conveying of the two cleaning belts, and the cleaning belts can move. Two cleaning belts are close to one side each other and provide certain accommodation space for waiting to clean the syringe needle, and clamping mechanism 2 presss from both sides the one side that two cleaning belts kept away from each other to promote two cleaning belts and move to the direction that is close to each other, make one side that two cleaning belts are close to each other can butt respectively in waiting to clean the syringe needle, along with the removal of cleaning belts, realize treating removing glue of cleaning the syringe needle, in order to reach clear purpose.

However, the cleaning belt is prone to position deviation in the moving process, so that an operator needs to monitor and stop the machine in real time to adjust the position of the cleaning belt, which affects the production efficiency, and the position deviation of the cleaning belt is prone to affect the wiping effect of the needle head to be cleaned. To solve this problem, the needle cleaning device further comprises an adjustment mechanism 3, the adjustment mechanism 3 being configured to adjust the tension of the cleaning tape. Through setting up adjustment mechanism 3, make the tensile force of cleaning tape adjustable, avoid the cleaning tape tension or the mistake pine to cause unusually, guarantee the positional stability of cleaning tape, make the cleaning tape can accurately clean and treat the cleaning needle head, clean effectual, and need not to shut down the back and carry out position adjustment to the cleaning tape, the cleaning process is continuous, incessant, clean production efficiency is higher.

The existing cleaning belt does not exist directly in a belt shape, but a coil is formed by winding one circle, and the coil exists in a disc type structure, so that the occupied space is reduced, and the transportation is convenient. In order to realize the transportation of the cleaning belt with a disc type structure, as shown in fig. 1, the conveying mechanism 1 includes a discharging component 11 and a receiving component 12, the cleaning belt with a disc type structure is installed on the discharging component 11, the discharging component 11 is used for releasing the cleaning belt, the receiving component 12 is used for recovering the cleaning belt, and the cleaning belt is wound on the discharging component 11 and the receiving component 12 respectively. Through setting up blowing subassembly 11, release into the band structure with the clean area of disc type structure, through setting up material collecting assembly 12, retrieve the clean area of band structure to the disc type structure again. The cleaning belt is respectively wound on the discharging component 11 and the receiving component 12, so that the cleaning belt between the discharging component 11 and the receiving component 12 is of a belt-shaped structure, can be moved, and is convenient for wiping the needle head to be cleaned.

Further, as shown in fig. 1, the discharging assembly 11 includes a driving source 111 and a discharging roller 112, the discharging roller 112 is used for winding the cleaning belt, the driving source 111 is embodied as a stepping motor, the driving source 111 is mounted on the frame 6, and the driving source 111 can drive the discharging roller 112 to rotate. By controlling the rotation time and the rotation speed of the driving source 111, the discharging length of the cleaning belt can be controlled, and waste of the cleaning belt is avoided.

Further, as shown in fig. 1-2, the material receiving assembly 12 includes a material receiving roller 121 and a rotating shaft 122, the material receiving roller 121 is used for winding the cleaning belt, and the rotating shaft 122 is disposed through the material receiving roller 121 and can rotate relative to the clamping mechanism 2. Pivot 122 provides for blowing roller 112 and can realize the pivoted center pin, and the winding has the cleaning tape between receiving roller 121 and blowing roller 112, and blowing roller 112 has played the effect of action wheel, and receiving roller 121 has played the follow-up action from the driving wheel, and receiving roller 121 need not additionally to set up the driving piece, and manufacturing cost is lower.

In order to ensure the rotating effect of the material receiving roller 121, the material receiving assembly 12 further comprises a rotating seat 123 and a bearing 124, the rotating seat 123 is arranged on the frame 6, and the rotating seat 123 provides an installation space for the bearing 124. The bearing 124 is sleeved outside the rotating shaft 122 and located between the rotating shaft 122 and the rotating base 123. Through setting up bearing 124 to guarantee pivot 122 pivoted smoothness nature, make material roller 121 have good receipts material effect.

Because the cleaning belt lacks effectual limit structure, the cleaning belt is the offset that appears easily at the removal in-process, can adopt and wind the cleaning belt on locating the take-up pulley to realize the purpose of cleaning belt tensioning, but only the tensioning wheel can't quick adjustment cleaning belt's tensioning force, perhaps need the cleaning belt to stop adjusting again after removing, production efficiency ratio is lower.

To solve this problem, as shown in fig. 2, the adjusting mechanism 3 includes a locking member 31, and the locking member 31 is sleeved on the rotating shaft 122 and can press the bearing 124 into the rotating seat 123 to limit the rotation of the bearing 124. Optionally, the locking member 31 is specifically a lock nut, a thread is provided on an outer wall of the rotating shaft 122, the locking member 31 can move along an axial direction of the rotating shaft 122, and after the locking member 31 abuts against an end surface of the bearing 124, the locking member 31 continues to move, so that the end surface of the bearing 124, which is far away from the locking member 31, abuts against an inner wall of the rotating seat 123, and rotation limitation of the bearing 124 is realized, thereby interfering with rotation of the rotating shaft 122 and the material receiving roller 121. Through the locking piece 31 for the tightening of pivot 122 with relax, adjust the receipts material process of cleaning tape, realize the regulation to cleaning tape tensile force, it is effectual to adjust.

In order to further improve the tension force adjusting effect of the cleaning belt, the adjusting mechanism 3 further includes a friction assembly 32, a knob 33 and an elastic member 34, the friction assembly 32 specifically includes a friction seat 321 and a friction plate 322, the friction seat 321 is disposed on the frame 6, the friction seat 321 is used for mounting the friction plate 322, and an accommodating cavity is provided between the friction seat 321 of the friction assembly 32 and the rotating seat 123 and is used for accommodating the bearing 124 and the locking member 31. The rotating shaft 122 is respectively inserted through the friction assembly 32, the knob 33 and the elastic member 34, and the knob 33 can rotate relative to the rotating shaft 122 and move along the axial direction of the rotating shaft 122, so that two ends of the elastic member 34 can respectively abut against the friction assembly 32 and the knob 33.

When the knob 33 is screwed in a direction approaching the friction assembly 32, the knob 33 compresses the elastic member 34, so that one end of the elastic member 34 far away from the knob 33 is pressed against the friction plate 322 of the friction assembly 32, thereby realizing locking of the rotating shaft 122; when the knob 33 is screwed in a direction away from the friction assembly 32, the compressed elastic member 34 is under the action of self-restoring force, and the force between one end of the elastic member 34 away from the knob 33 and the friction plate 322 of the friction assembly 32 is gradually reduced, so that the rotating shaft 122 is loosened. The damping adjustment of the material receiving roller 121 is realized by adjusting the knob 33 and limiting the rotation of the rotating shaft 122.

It can be understood that, since the locking member 31 is disposed inside the rotary seat 123, i.e., in the built-in state, the adjustment of the locking member 31 is to some extent the initial pre-tightening force of the cleaning belt, and the knob 33 is disposed outside the friction seat 321, i.e., in the external state, the tightening force of the cleaning belt can be adjusted in real time.

Further, as shown in fig. 3, the clamping mechanism 2 includes a clamping drive source 21 and two clamping jaws 22, the two clamping jaws 22 are respectively disposed on the outer sides of the two cleaning belts away from each other, the clamping drive source 21 is disposed on the frame 6, the clamping drive source 21 is embodied as a clamping cylinder, and the clamping drive source 21 can drive the two clamping jaws 22 to move toward or away from each other.

When the needle head to be cleaned needs cleaning, under the driving action of the clamping driving source 21, the clamping driving source 21 can drive the two clamping jaws 22 to move towards the direction close to each other, the two clamping jaws 22 push the outer side of the cleaning belt to move inwards until the cleaning belt can be tightly attached to the needle head to be cleaned, the contact area between the cleaning belt and the needle head to be cleaned is increased, and along with the movement of the cleaning belt, the cleaning belt wipes the needle head to be cleaned, so that the cleaning effect of the needle head to be cleaned is guaranteed. After the needle to be cleaned is cleaned, the clamping driving source 21 can drive the two clamping jaws 22 to move away from each other under the driving action of the clamping driving source 21, and the two clamping jaws 22 are separated from the cleaning belt, so that the cleaned needle can be taken out conveniently.

In order to avoid the clamping jaws 22 from being damaged due to rigid collision between the clamping jaws 22 and the needle to be cleaned in the process of clamping the cleaning belts by the clamping jaws 22, two buffer members 23 are correspondingly arranged on the two clamping jaws 22 one by one, and the two buffer members 23 can be abutted against the needle to be cleaned through the two cleaning belts one by one. The buffer member 23 is specifically high-temperature-resistant silica gel foam or a soft rubber cushion block, the buffer member 23 is installed on the clamping jaw 22, the buffer member 23 plays a role in buffering, when the clamping jaw is clamped tightly, a good clamping effect can be achieved, the clamping jaw 22 cannot treat a cleaning needle to cause extrusion injury, and the wiping effect is guaranteed.

Further, as shown in fig. 1, the needle cleaning device further comprises a position sensor 5, wherein the position sensor 5 is arranged on the frame 6 and used for detecting the height position of the needle to be cleaned and realizing the height verification of the needle to be cleaned so as to ensure that a proper position is provided between the needle to be cleaned and the cleaning belt and improve the cleaning accuracy.

Further, as shown in fig. 1, the needle cleaning device further comprises a waste glue collecting mechanism 4 for collecting waste glue in the needle to be cleaned. Mechanism 4 is collected to waste glue includes support and waste material bucket, and the support sets up in frame 6, and frame 6 is used for installing the waste material bucket, if treat that there is a certain amount of waste glue in the clean syringe needle, can be with the direct spraying of these waste glue in the waste material bucket, simple structure, convenient to use.

The working process of the needle cleaning device provided by the embodiment is as follows:

1. if a certain amount of waste glue is stored in the needle head to be cleaned, the waste glue can be directly sprayed in a waste bucket;

2. placing the needle head to be cleaned between the two cleaning belts;

3. the driving source 111 can drive the discharging roller 112 to rotate and drive the cleaning belt to move and the receiving roller 121 to rotate, so that discharging, cleaning and recovering processes are carried out simultaneously;

4. under the driving action of the clamping driving source 21, the clamping driving source 21 can drive the two clamping jaws 22 to move towards the direction close to each other, the two clamping jaws 22 push the outer side of the cleaning belt to move inwards until the cleaning belt can be tightly attached to the needle head to be cleaned, and the needle head to be cleaned is wiped along with the movement of the cleaning belt;

5. under the driving action of the clamping driving source 21, the clamping driving source 21 can drive the two clamping jaws 22 to move towards the directions away from each other, and the two clamping jaws 22 are separated from the cleaning belt, so that the taking out of the cleaned needle head is convenient to complete, and then a working cycle is completed.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A needle cleaning apparatus, comprising:

the two conveying mechanisms (1) are configured to convey two cleaning belts in a one-to-one correspondence mode, and an accommodating space is formed on one side, close to each other, of the two cleaning belts and used for accommodating a needle to be cleaned;

a clamping mechanism (2) which is configured to clamp one side of the two cleaning belts far away from each other so that one side of the two cleaning belts close to each other can be abutted against the needle to be cleaned respectively for cleaning the needle to be cleaned;

an adjustment mechanism (3) configured to adjust a tension of the cleaning belt.

2. A needle cleaning device according to claim 1, characterized in that the delivery mechanism (1) comprises:

a discharge assembly (11) for the release of the cleaning tape;

receive material subassembly (12), be used for the recovery of clean area, clean area is around locating respectively blowing subassembly (11) with receive on the material subassembly (12).

3. A needle cleaning device according to claim 2, characterised in that the emptying assembly (11) comprises a drive source (111) and an emptying roller (112), the emptying roller (112) being used for winding up the cleaning tape, the drive source (111) being capable of driving the rotation of the emptying roller (112).

4. A needle cleaning device as claimed in claim 2, characterized in that said collection assembly (12) comprises:

a receiving roller (121), wherein the receiving roller (121) is used for winding the cleaning belt;

the rotating shaft (122) is arranged in the receiving roller (121) in a penetrating mode and can rotate relative to the clamping mechanism (2);

the bearing (124) is sleeved outside the rotating shaft (122) and is positioned between the rotating shaft (122) and the rotating base (123).

5. A needle cleaning device according to claim 4, characterised in that the adjustment mechanism (3) comprises a locking member (31), the locking member (31) is sleeved on the rotating shaft (122) and can press the bearing (124) in the rotating seat (123) for limiting the rotation of the bearing (124).

6. A needle cleaning device according to claim 5, characterized in that the adjusting mechanism (3) further comprises a friction component (32), a knob (33) and an elastic member (34), the rotating shaft (122) is respectively arranged through the friction component (32), the knob (33) and the elastic member (34), the knob (33) can rotate relative to the rotating shaft (122) and move along the axial direction of the rotating shaft (122), so that two ends of the elastic member (34) can respectively abut against the friction component (32) and the knob (33).

7. A needle cleaning device according to any one of claims 1-6, characterised in that the clamping mechanism (2) comprises a clamping drive source (21) and two clamping jaws (22), the two clamping jaws (22) being arranged outside the side of the two cleaning tapes facing away from each other, respectively, the clamping drive source (21) being capable of driving the two clamping jaws (22) to move towards or away from each other.

8. A needle cleaning device according to claim 7, characterised in that two buffers (23) are provided on two clamping jaws (22) in one-to-one correspondence, the two buffers (23) being capable of abutting against the needle to be cleaned via two cleaning strips in one-to-one correspondence.

9. A needle cleaning device according to any one of claims 1 to 6, further comprising a waste gel collecting means (4) for collecting waste gel from the needle to be cleaned.

10. A dispensing apparatus, characterized in that, it comprises a dispensing mechanism and a needle cleaning device according to any one of claims 1 to 9, the needle to be cleaned of the dispensing mechanism is used for dispensing a workpiece to be processed, and the needle cleaning device is used for cleaning the needle to be cleaned after dispensing.