CN116274173A

CN116274173A - Dust adhesion machine for printed circuit board

Info

Publication number: CN116274173A
Application number: CN202310554222.7A
Authority: CN
Inventors: 马密; 胡小平; 蔡加亮
Original assignee: Sichuan Tuobule Technology Co ltd
Current assignee: Sichuan Tuopule Technology Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-06-23
Anticipated expiration: 2043-05-17
Also published as: CN116274173B

Abstract

The invention discloses a dust sticking machine for a printed circuit board, and belongs to the technical field of printed circuit board manufacturing. The dust adhering machine comprises a frame, a dust adhering roller mechanism and paper roll mechanisms arranged on the upper side and the lower side of the dust adhering roller mechanism are arranged on the frame, the dust adhering roller mechanism comprises a dust adhering roller assembly, the dust adhering roller assembly comprises a first dust adhering roller group and a second dust adhering roller group which are arranged at intervals up and down, the first dust adhering roller group and the second dust adhering roller group respectively comprise at least two dust adhering rollers which are arranged at intervals side by side, and the distance between every two adjacent dust adhering rollers is smaller than the radius of the dust adhering rollers. Because the dust adhering roller and the plate are rubbed in the dust adhering process to generate static electricity, the static electricity of the plate can increase the adhesive force of impurities; through reducing the interval between the adjacent dust-binding rollers for the same clean face region of panel reduces in the time of the removal of dust-binding roller behind to from the dust-binding roller, thereby makes the regional residual impurity of same clean face receive the static action time in this removal time and reduces impurity bonding strength, and then makes panel cleanliness obtain effectively promoting.

Description

Dust adhesion machine for printed circuit board

Technical Field

The invention relates to the technical field of printed circuit board manufacturing, in particular to a dust sticking machine for a printed circuit board.

Background

A Printed Circuit Board (PCB) is a provider of electrical connections for electronic components. The PCB mainly comprises copper foil, a base material and prepregs, wherein in the lamination process of a plurality of PCBs, a mirror surface isolation steel plate is needed to separate the PCBs, and if dust and other impurities exist on the mirror surface isolation steel plate, the dust and other impurities can laminate the copper foil in the PCB to generate pits, scratch, short circuit and other conditions in the lamination process; therefore, in order to ensure the yield of the reworked product of the subsequent plate, the surface of the mirror-surface separation steel plate needs to be cleaned.

In the related art, a dust sticking machine is adopted to clean the surface of a steel plate, impurities on the surface of the steel plate are stuck to the rubber roller, and then the rubber roller is cleaned by a dust sticking paper roll; in this way, the rubber roller and the dust-binding paper roll are matched to clean the steel plate uninterruptedly; among these, the rubber roller plays a very important role in adsorbing the plate dust. In order to obtain higher cleanliness, the dust-binding machine is optimized and improved in the related art, such as a dust-binding roller with better self-adhesion or a dust-binding paper roll is used for removing dust of the plate, and the cleanliness can be intuitively improved in this way, but the cost input to the dust-binding roller is correspondingly increased.

Therefore, providing a dust-sticking machine with improved dust removal effect and reduced cost input is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention discloses a dust-binding machine for a printed circuit board, which aims to solve the technical problem of increasing cost investment in the prior art for improving the dust removal effect.

In order to solve the problems, the invention adopts the following technical scheme: a gluey dirt machine of dust sticking machine for printed circuit board, includes the frame, be equipped with gluey dirt roller mechanism and scroll mechanism in the frame, wherein:

the dust-binding roller mechanism comprises a dust-binding roller assembly and a first driving piece, and the first driving piece is in transmission connection with the dust-binding roller of the dust-binding roller assembly so as to drive the dust-binding roller to rotate;

the dust-binding roller assembly comprises a first dust-binding roller set and a second dust-binding roller set which are arranged at intervals up and down, wherein the first dust-binding roller set and the second dust-binding roller set both comprise at least two dust-binding rollers which are arranged at intervals side by side, and the distance between every two adjacent dust-binding rollers is smaller than the radius of each dust-binding roller;

the paper roll mechanism comprises a paper roll assembly and a first pushing mechanism, wherein the paper roll assembly is arranged on the upper side and the lower side of the dust-binding roller assembly in a lifting and moving mode, and the first pushing mechanism is configured to apply pushing force to the paper roll assembly so as to enable the paper roll to be attached to the dust-binding roller.

The technical scheme adopted by the invention can achieve the following beneficial effects:

1. in the process of adhering dust to the plate by the dust adhering roller, static electricity is generated between the dust adhering roller and the plate due to friction, and the static electricity on the plate can adsorb impurities such as dust, tiny particles and the like, so that the adhesion force of the impurities is increased; according to the invention, the distance between the adjacent dust-binding rollers is reduced, so that the moving time of the same cleaning area from the former dust-binding roller to the latter dust-binding roller is reduced, the static action time of residual impurities of the same cleaning area passing through the former dust-binding roller is reduced, the adhesion firmness of the impurities is reduced, the adhesion of the impurities by the latter dust-binding roller is easier, and the cleanliness of the plate is effectively improved;

2. according to the dust-binding roller assembly, the material of the dust-binding roller assembly is not improved, extra cost investment is not needed, and the dust removal quality can be effectively improved only by optimizing the structure of the dust-binding roller.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a dust-binding machine for printed circuit boards according to an embodiment of the present application;

FIG. 2 is a schematic two-diagram of a dust bonder for a printed circuit board according to an embodiment of the present application;

FIG. 3 is a schematic view of a dust roller assembly according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating the operation between a first set of dust-binding rollers and a second set of dust-binding rollers according to an embodiment of the present application;

FIG. 5 is a side view of a first holder and a second holder according to an embodiment of the present disclosure;

FIG. 6 is an exploded view of a first spring and guide according to an embodiment of the present application;

FIG. 7 is a half cross-sectional view of a first mount and a second mount according to an embodiment of the present disclosure;

figure 8 is a schematic view of a paper roll assembly according to an embodiment of the present application;

FIG. 9 is an enlarged schematic view of FIG. 1 at A;

FIG. 10 is a schematic view of a third fixing base according to an embodiment of the present application;

FIG. 11 is a schematic partial view of a third mount according to an embodiment of the present application;

FIG. 12 is a partial schematic two-view of a third mount according to an embodiment of the present application;

FIG. 13 is a schematic view of the structure between the third fixing base and the fastening block in the embodiment of the present application;

FIG. 14 is a schematic view of a detent according to an embodiment of the present application;

FIG. 15 is a schematic view of a fastener block structure in an embodiment of the present application;

FIG. 16 is a schematic view of a slide rail mechanism installation in an embodiment of the present application;

FIG. 17 is a schematic view of a second pushing mechanism and a dust roller mechanism according to an embodiment of the present disclosure;

FIG. 18 is a schematic view of a second urging mechanism in an embodiment of the present application;

in the figure:

100-frame, 200-dust-binding roller mechanism, 210-dust-binding roller assembly, 201-first dust-binding roller set, 202-second dust-binding roller set, 203-first fixing seat, 204-second fixing seat, 205-dust-binding roller, 206-first elastic piece, 207-guiding piece, 208-stopping part, 209-shaft sleeve, 220-first driving piece, 230-second pushing mechanism, 231-second driving piece, 232-pushing rod, 233-pushing part, 300-paper roll mechanism, 310-paper roll assembly, 301-paper roll, 302-paper reel, 303-paper roll, 320-first pushing mechanism, 330-third fixing seat, 331-base, 332-clamping piece, 333-locking piece, 334-positioning groove, 335-first guiding surface, 336-abutting part, 337-fastening block, 338-second guiding surface, 400-slide rail mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The dust-binding machine for the printed circuit board provided in the embodiment of the application will be described in detail with reference to fig. 1 to 4 by means of specific embodiments and application scenarios thereof.

Referring to fig. 1 and 2, the dust-binding machine of the present invention includes a frame 100, and a dust-binding roller mechanism 200 and a paper roll mechanism 300 are disposed on the frame 100. The dust-binding roller mechanism 200 comprises a dust-binding roller assembly 210 and a first driving piece 220, wherein the first driving piece 220 is in transmission connection with the dust-binding roller 205 of the dust-binding roller assembly 210 so as to drive the dust-binding roller 205 to rotate;

the dust adhesion machine can clean tiny particles, fibers, grease, copper scraps, dust and other impurities generated in the production process of a Printed Circuit Board (PCB), the plate workpiece passes out of the dust adhesion machine, and the attached dust on the surface of the plate is taken away by the dust adhesion roller 205. The dust adhering machine mainly comprises a dust adhering roller mechanism 200 and a paper roll mechanism 300, wherein the paper roll 301 of the paper roll mechanism 300 has a viscosity greater than that of the dust adhering roller 205 of the dust adhering roller mechanism 200 so as to adhere dust adhered by the dust adhering roller assembly 210; the dust-sticking roller mechanism 200 cleans the sheet passing therethrough, adheres impurities to both surfaces of the sheet, and then the paper roll mechanism 300 cleans the dust-sticking pipe mechanism, and sticks off impurities adhered to the surface of the dust-sticking roller 205, so that the dust-sticking roller 205 can continuously clean the surface of the sheet.

The dust-binding roller assembly 210 comprises a first dust-binding roller group 201 and a second dust-binding roller group 202 which are arranged at intervals up and down, wherein each of the first dust-binding roller group 201 and the second dust-binding roller group 202 comprises at least two dust-binding rollers 205 which are arranged at intervals side by side, and the distance between every two adjacent dust-binding rollers 205 is smaller than the radius of each dust-binding roller 205;

applicant's designer accidentally found in the research study: because the friction between the dust-sticking roller 205 and the plate material causes static electricity on the surface of the plate material, the dust-sticking effect of the dust-sticking roller 205 is affected to a certain extent by the adsorption effect of the static electricity, so that dust on the plate material can be adsorbed more firmly, the adhesion force of the dust on the plate material is increased, and the dust-sticking roller 205 is not easy to adsorb away the dust, so that the dust-sticking roller 205 with higher required adhesion strength is required to be provided for improving the cleaning rate of the plate material, and the cost investment on the dust-sticking roller 205 is increased. The designer further and deeply finds that, referring to fig. 4, the left two dust-binding rollers 205 are defined as front dust-binding rollers, the right two dust-binding rollers are rear dust-binding rollers, the sheet material moves in the direction indicated by the straight arrow in the dust-binding channel, the sheet material contacts the front dust-binding rollers and then contacts the rear dust-binding rollers, although the front dust-binding rollers clean the sheet material for the first time, a small part of residual dust still continues to travel to the rear dust-binding rollers and is absorbed by the front dust-binding rollers, the distance from the front dust-binding rollers to the rear dust-binding rollers is L, the residual dust is absorbed by static electricity in the distance, the longer the distance is, the longer the travel time required by the sheet material is, the longer the residual dust is absorbed by static electricity, so that the length of the distance L affects the static electricity absorption degree of the residual dust.

Based on this, the present invention designs that the separation distance between adjacent dust-binding rollers 205 of the same group is smaller than the radius R of the dust-binding roller 205. With continued reference to fig. 4, the distance between adjacent dust-binding rollers 205 is the shortest distance D between the peripheries of the adjacent dust-binding rollers 205, i.e., D < R, and the distance D between the adjacent dust-binding rollers 205 is controlled in a smaller range, so that the distance L between the plate moving from the front dust-binding roller to the rear dust-binding roller is reduced, i.e., the acting time of static electricity generated by friction on the dust is reduced, and the strength of the dust absorbed by the plate is reduced; when the residual dust of the same cleaning point moves from the front dust-binding roller to the rear dust-binding roller, the residual dust of the cleaning point is more easily absorbed by the rear dust-binding roller, and the cleaning rate of the whole plate is improved. The invention reduces the adverse effect of friction static electricity on the adhesion dust adsorption by improving the structure of the dust adhesion roller assembly 210, thereby improving the cleaning rate of the plate, improving the yield of the subsequent plate reshaping products or processed products and increasing the production benefit of enterprises.

The paper roll mechanism 300 comprises a paper roll assembly 310 and a first pushing mechanism 320, wherein the paper roll assembly 310 is arranged on the upper side and the lower side of the dust-binding roller assembly 210 in a lifting manner, and the first pushing mechanism 320 is configured to apply a pushing force to the paper roll assembly 310 so as to enable the paper roll 301 to be attached to the dust-binding roller 205.

Referring to fig. 1 and 8, the paper roll assembly 310 includes a paper roll 302 and a paper roll 301 disposed on the paper roll 302, the paper roll 301 being disposed parallel to the dust-binding rollers 205, the paper roll 301 being disposed between two adjacent dust-binding rollers 205 such that one paper roll 301 can simultaneously clean the two dust-binding rollers 205; the paper roll assembly 310 can absorb dust absorbed on the surface of the dust-binding roller 205 through the paper roll 301, so that the dust-binding roller 205 can continuously clean the surface of the plate. Along with the use of the dust-binding rolled paper of the paper roll assembly 310, the thickness of the dust-binding rolled paper is gradually thinned, the paper roll assembly 310 is arranged in a lifting manner, and the first pushing mechanism 320 pushes the paper roll assembly 310 to approach the dust-binding roller assembly 210, so that the dust-binding rolled paper is fully attached to the dust-binding roller 205. Specifically, on the third fixing seat 330 with fixed rotating shafts at two ends of the rotating shaft of the paper roll assembly 310, the third fixing seat 330 can be set up in a lifting manner, so as to realize the lifting movement of the whole paper roll assembly 310. Optionally, the third fixing seat 330 includes an upper base 331 and a lower base 331 which are disposed up and down, the lower base 331 is fixedly disposed on the frame 100, a spring and a guide rod are disposed between the upper base 331 and the lower base 331, the spring is sleeved on the guide rod, the spring applies elastic force to the upper base 331 to make it float above the lower base 331, and the guide rod guides the lifting movement of the upper base 331; the first pushing mechanism 320 is disposed above the upper base 331 to drive the upper base 331 to move towards a side close to the lower base 331, wherein a telescopic driving member of the first pushing mechanism 320 may adopt a driving device such as a telescopic motor, a hydraulic cylinder, an oil hydraulic cylinder, etc.

Alternatively, the radius of the paper roll 301 is greater than 2 times the radius of the dust-binding roller 205 and less than 2.5 times the radius of the dust-binding roller 205. In the process of cleaning the dust-binding roller 205 by the paper roll 301, referring to fig. 4, the upper paper roll 301 cleans two adjacent upper dust-binding rollers under the action of the pushing mechanism. When the paper roll 301 is used for the second dust-binding roller set 202, the total pressure of the paper roll 301 to the second dust-binding roller set 202 is kept unchanged, the contact position between the paper roll 301 and the dust-binding roller 205 changes along with the size change of the paper roll 301, and the abutting force of the paper roll 301 to the dust-binding roller 205 is not in the same direction with the pressure, namely the abutting force is a component of the pressure; the abutting force correspondingly changes along with the change of the contact position, when the contact position is close to the dust adhering channel, the abutting force becomes smaller, and when the contact position is far away from the dust adhering channel, the abutting force becomes larger; by controlling the diameter of the paper roll 301, the contact position between the paper roll 301 and the dust-binding roller 205 is further controlled, namely: when the radius of the paper roll 301 is larger than 2.5R, the contact force of the paper roll 301 to the dust-binding roller 205 is too large, so that larger friction exists, the relative movement between the two is influenced, and the situation of clamping is easy to occur; when the radius of the paper roll 301 is smaller than 2R, the contact force of the paper roll 301 to the dust-sticking roller 205 is too small, and the situation that the dust sticking of the paper roll 301 is not in place is easy to occur; the invention ensures that the abutting force of the paper roll 301 to the dust-binding roller 205 is at a proper position, so that the paper roll 301 and the dust-binding roller have proper abutting force, the contact position is in a close fitting state, the bonding effect is improved, and meanwhile, the larger abutting force is prevented from greatly influencing the relative movement of the paper roll and the dust-binding roller.

It should be noted that, the radius of the paper roll 301 may be the initial size of the paper roll 301, or may be a variable range of sizes during the use, and the radius of the paper roll 301 is controlled according to the actual use situation, so as to satisfy the requirement that the paper roll 301 has a better cleaning effect on the dust-binding roller 205.

Further, referring to fig. 5, the dust roller assembly 210 includes a first fixing base 203 for fixing the first dust roller set 201 and a second fixing base 204 for fixing the second dust roller set 202; the first fixing seat 203 is fixedly arranged, the second fixing seat 204 is movably arranged above the first fixing seat 203, a first elastic piece 206 is arranged between the first fixing seat 203 and the second fixing seat 204, and the first elastic piece 206 is configured to apply elastic force to the second fixing seat 204, so that a dust adhering channel for a plate to pass through is formed between the first dust adhering roller set 201 and the second dust adhering roller set 202.

The first fixing base 203 and the second fixing base 204 together form a fixing base, and the fixing bases are arranged at two axial ends of the dust-binding roller assembly 210. The fixing base is used for fixing and supporting two ends of the dust-binding roller 205, bearing mounting holes are formed in the fixing base, bearings can be arranged in the bearing mounting holes, and the bearings are in rotary fit with the rotary shaft of the dust-binding roller 205 so as to realize rotation of the dust-binding roller 205. The first fixing seat 203 and the second fixing seat 204 fix the first dust-binding roller set 201 and the second dust-binding roller set 202 which are arranged at intervals respectively, that is, the relative position between the first fixing seat 203 and the second fixing seat 204 is matched with the relative position between the first dust-binding roller set 201 and the second dust-binding roller set 202, so as to meet the installation requirement.

In order to enable the dust-binding roller assembly 210 to use plates with different thicknesses and facilitate feeding, the relative distance between the first fixing seat 203 and the second fixing seat 204 is adjustable, so that the vertical distance between the first dust-binding roller assembly 201 and the second dust-binding roller assembly 202 can be adjusted, namely the height of the dust-binding channel is adjusted; thus, the dust-binding roller assembly 210 can adapt to plates with different thicknesses, expand the application range of the dust-binding roller assembly 210, and improve the applicability of the dust-binding roller assembly. In order to meet the adjustable performance of the space between the first dust-binding roller set 201 and the second dust-binding roller set 202, the first fixing seat 203 and the second fixing seat 204 are required to be of a separated structure, and the second fixing seat 204 is movably arranged, so that the first dust-binding roller set 201 or the second dust-binding roller set 202 can be movably adjusted to meet the adjustable relative distance between the two.

Accordingly, referring to fig. 1 and 9, in this embodiment, the first pushing mechanism 320 is used to indirectly push the second dust-binding roller set 202, and when the first pushing mechanism 320 pushes the paper roll assembly 310, the paper roll assembly 310 can also apply a pushing force to the second dust-binding roller set 202 in the dust-binding roller assembly 210, so that the paper roll assembly 310 is attached to the dust-binding roller assembly 210. Therefore, the first pushing mechanism 320 can be used for indirectly adjusting the relative distance between the first dust-binding roller set 201 and the second dust-binding roller set 202. It should be noted that, because the first dust-binding roller set 201 below the dust-binding roller set 210 is in a fixed state, the paper roll set 310 below the dust-binding roller set 210 will not generate a pushing force on the dust-binding roller set 210, and the paper roll set 310 only needs to be used along with the paper roll 301, and the corresponding first pushing mechanism 320 pushes the paper roll set 310 to move upwards to be attached to the first dust-binding roller set 201.

In this embodiment, before the plate to be cleaned is placed in the dust-binding channel, the first elastic member 206 supports the upper dust-binding roller 205 set, the first elastic member 206 is in a compressed state and has a rebound force, the first elastic member 206 balances the gravity of the whole upper dust-binding roller 205 set through its own elasticity, and the interval distance between the first dust-binding roller set 201 and the second dust-binding roller set 202 is still in a maximum state for placing the plate; when a plate is placed in the dust-binding channel, the upper dust-binding roller 205 set is moved downwards integrally, the second dust-binding roller set 202 is lowered to be attached to and abutted against the upper surface of the plate, the spacing distance between the first dust-binding roller set 201 and the second dust-binding roller set 202 is matched with the thickness of the plate, in the process, the resilience force is gradually increased, the compression state of the first elastic piece 206 is enhanced, and the resilience force is balanced with the jacking force of the adjusting mechanism and the gravity of the upper dust-binding roller 205 set, so that the second fixing seat 204 is kept at the position, and the plate cleaning process is continuously carried out.

As a preferred embodiment, the first elastic member 206 is a spring, the spring is disposed between the first fixing seat 203 and the second fixing seat 204, blind hole structures for installing the spring are disposed on the first fixing seat 203 and the second fixing seat 204 in opposite directions, two ends of the spring are respectively connected with the blind holes of the first fixing seat 203 and the second fixing seat 204, and the blind holes of the second fixing seat 204 are fastened on the spring from top to bottom; when the second fixing seat 204 is not acted by the acting force of the adjusting mechanism, the second fixing seat 204 is pressed against the spring under the action of gravity; when the second fixing base 204 is acted by the adjusting mechanism, the resilience force of the spring is gradually increased to support the second fixing base 204 in the balance position. The first elastic piece 206 in the embodiment of the application assists the adjusting mechanism to adjust the relative distance between the first fixing base 203 and the second fixing base 204, so that the adjusting process is smooth, and dust sticking is facilitated. On one hand, the invention is suitable for plates with different thicknesses and has better adaptability; on the other hand, the elastic property of the first elastic member 206 is utilized to adapt to the required balance force of the first fixing seat 203 or the second fixing seat 204 which are movably arranged at different positions, so that the moving distance can be controlled in time and kept at the gesture; compared with the prior art that the moving distance is directly controlled by the adjusting mechanism, the first elastic piece 206 has a simpler structure, and the self-locking requirement of the adjusting mechanism is reduced, so that the input cost caused by a complex structure is relatively reduced. On the other hand, a certain mechanical vibration is unavoidable in the mechanical production and processing process, and the first elastic member 206 provides an elastic fitness for the dust-binding roller 205, so as to reduce the influence of the mechanical vibration on the cleaning process of the plate, thereby improving the dust removal quality.

Further, referring to fig. 6 and 7, a guide member 207 is disposed between the first fixing base 203 and the second fixing base 204, and the guide member 207 is disposed along the relative moving direction between the first fixing base 203 and the second fixing base 204; the first fixing base 203 is fixedly connected with the guide member 207, and the second fixing base 204 is slidably connected with the guide member 207.

It can be seen that the guide 207 is disposed along the moving direction of the second dust roller set 202, that is, the guide 207 is disposed between the first fixing base 203 and the second fixing base 204 along the resilient force direction of the first resilient member 206. The guide member 207 plays a role in guiding, and avoids the offset of the relative positions of the first dust-binding roller set 201 and the second dust-binding roller set 202 when the distance is adjusted, so that dislocation and omission of the cleaning area of the plate material occur. The guide member 207 may be a rod, a shaft or other guiding structures, preferably, in this embodiment, a long shaft structure is used, and long shafts are symmetrically disposed on two sides of the first elastic member 206, so that the two long shafts limit the adjustment direction, and the relative positions between the first dust-binding roller set 201 and the second dust-binding roller set 202 are always in a parallel state, so as to ensure the dust-binding quality. Further, the second fixing base 204 is provided with a shaft sleeve 209 sleeved on the guide member 207, which is beneficial to improving the adaptability of sliding fit. A stop part 208 is arranged at the top of the guide part 207 to limit the maximum lifting travel of the second fixing seat 204 and prevent the second fixing seat 204 from being separated.

Further, referring to fig. 8, 11 and 12, the paper roll assembly 310 includes a paper roll 303 and a third fixing seat 330 for fixing the paper roll 303, the paper roll 303 is composed of the paper roll 302 and the paper roll 301, the third fixing seat 330 includes a base 331, a clip member 332 and a locking member 333, the base 331 is provided with a first mounting groove, the clip member 332 is provided with a second mounting groove, one end of the clip member 332 is rotatably connected with the base 331, and the other end is detachably connected with the base 331, so that the first mounting groove and the second mounting groove are folded to form a bearing mounting hole;

the locking piece 333 has a locked state and an unlocked state, when the locking piece 333 is in the locked state, the locking piece 333 abuts against the outer periphery of the clamp piece 332, and the locking piece 333 is configured to apply a locking force toward the first mounting groove to the clamp piece 332; when the locking element 333 is in the unlocked state, the locking element 333 is avoided from the rotation track of the clamp member 332; the locking element 333 is movably disposed on the base 331 to switch between a locked state and an unlocked state.

The fixing base and the clamp member 332 provide a mounting basis for the bearing for fixing the rotation shaft of the paper roll 301, and the clamp member 332 is rotatably provided on the fixing base to realize opening and closing of the bearing mounting hole. The clamp member 332 is disposed above the fixing base, and the clamp member 332 can rotate around its first end in the vertical direction. When the clamp piece 332 is buckled on the fixing seat, the first mounting groove and the second mounting groove are folded to form a bearing mounting hole, the bearing mounting hole is matched with the size of the bearing to be mounted, and the interference can be reserved to realize interference fit, so that the bearing is positioned and mounted; during installation, the fixing seat is used as a positioning base, the bearing is placed in the first mounting groove, and then the clamp piece 332 is rotated to enable the second mounting groove to be buckled on the bearing, so that the bearing is clamped around. Optionally, a yielding groove for installing the first end and the second end of the clamp member 332 is formed in the fixing seat, so that a yielding space in the rotation process is provided for the clamp member 332, and smooth rotation of the clamp member 332 is realized.

The locking element 333 is movably disposed on the fixed base to switch between a locked state and an unlocked state. The locking member 333 abuts against the outer periphery of the clip member 332 in a direction toward the first mounting groove, that is, the locking member 333 applies an abutment force toward the bearing mounting hole, so that the inner periphery of the clip member 332 abuts against the outer surface of the bearing, the abutment force can directly act on the clip member 332 in the radial direction of the bearing mounting hole, and a partial abutment force component of the locking member 333 can also be made in the radial direction of the bearing mounting hole, so long as the purpose of fixedly mounting the bearing can be achieved. Because the traditional connecting structure is avoided, the clamping hoop 332 can be fastened and unfastened by adjusting the position of the locking piece 333, the operations of complicated mounting bolts, screws and other connecting pieces are reduced, the bearing is convenient to take and replace, the dust sticking paper roll 301 is convenient to replace, and the working efficiency is improved.

Further, referring to fig. 11 to 14, the locking member 333 includes a fastening block 337 rotatably disposed on the fixing base, and the fixing base has a positioning slot 334 for positioning the fastening block 337, and when the locking member 333 is in the locked state, the fastening block 337 abuts against the outer periphery of the clamping member 332 and is engaged with the positioning slot 334.

It should be noted that, the locking element 333 is rotatably disposed on the fixing base, and the rotation direction thereof satisfies that the locking element 333 can be switched between the locking state and the unlocking state, so that the locking element 333 can rotate into the positioning slot 334 to lock the clamp member 332. The fastening blocks 337 should be provided with a locking force, i.e. a force against the clamping members 332, which can press the fastening blocks 337 by means of the external fitting mechanism. The fastening block 337 should also have an abutment portion that can act to abut against the outer periphery of the clip 332, the abutment portion having an abutment surface that mates with the abutment surface described above. The fastening block 337 can be connected with the fixing base through structural members such as a rotating shaft and a screw rod, as shown in fig. 5, the fastening block 337 is connected with a vertically arranged rotating shaft, the fixing base is provided with a mounting hole for mounting the rotating shaft, and the fastening block 337 is in horizontal rotary fit with the fixing base through the rotating shaft.

Referring to fig. 10 to 15, some embodiments of the present invention are as follows: the fixing base is similar to a U shape, a first concave mounting groove is formed in the middle of the fixing base, the clamp piece 332 is arranged above the fixing base, the first end of the clamp piece 332 is in rotary connection with the right end of the fixing base through a rotary shaft, the clamp piece 332 can rotate around the first end in the vertical direction, the locking piece 333 is arranged at the left end of the fixing base and close to the second end of the clamp piece 332, and the locking piece 333 can rotate in the horizontal direction. Wherein the fastening block 337 is similar to a cuboid, one end part of the fastening block 337 in the length direction is an abutting part, and a part of the bottom surface of the fastening block 337 close to the abutting part is an abutting surface; the positioning groove 334 is rectangular, so that the fastening block 337 can be embedded in the positioning groove 334 when being arranged along the length direction thereof; in the unlocked state, the fastening block 337 rests on a stepped surface above the positioning groove 334 along its length, and in the locked state, the bottom of the fastening block 337 is embedded in the positioning groove 334. The body of the clamp member 332 is in a semicircular arc shape, the abutting portion 336 of the clamp member 332 is in a right-angle structure protruding out of the periphery of the clamp member 332, and the outer peripheral surface of the clamp member is provided with two adjacent and vertical planes, wherein one plane serves as an abutting surface. When the locking device 333 is locked, the locking device 333 rotates along the arrow direction in fig. 11 to lock the clamp piece 332, the locking state shown in fig. 2 is finally obtained after the locking of the fastening block 337, the second end of the clamp piece 332 is fastened on the fixing base, the abutting portion of the fastening block 337 extends out of the left side structure of the fixing base and abuts against the abutting portion 336 of the clamp piece 332, the abutting surface is flush with and attached to the upper surface of the abutting portion 336, and the bottom of the fastening block 337 is embedded into the positioning groove 334.

In this embodiment, as shown in fig. 13, the bottom end of the fastening block 337 is a portion to be fitted into the positioning groove 334, so that the bottom end of the fastening block 337 is required to be matched with the shape and size of the positioning groove 334. The fastening block 337 is matched with the positioning groove 334, when the clamp piece 332 is locked, the fastening block 337 is embedded with the positioning groove 334 to indicate that the mounting bearing is locked in place, so that an operator can conveniently confirm the fastening condition; in addition, the limit of the positioning groove 334 to the fastening block 337 ensures that the fastening block is always in a preset fastening position, and when the bearing is installed, even if mechanical vibration exists in the bearing in the running process, the fastening block 337 can not deflect due to the position generated by the vibration, so that the fastening degree is in a fastening range, and the reliability of fastening installation is ensured.

Further, the fastening block 337 is limited by the step of the slot edge at the positioning slot 334, and conventional rotation requires lifting the fastening block 337 out of the positioning slot 334 for rotation, but this has an inconvenient operation requiring manual lifting or mechanical lifting prior to rotation. In order to facilitate the rotation of the fastening block 337, referring to fig. 11 to 15, the fixing base is further provided with a first guiding surface 335 at the edge of the positioning slot 334, the fastening block 337 has a second guiding surface 338 adjacent to the abutment surface, and the first guiding surface 335 is in guiding engagement with the second guiding surface 338, so that the fastening block 337 can be rotated from the locked state to the unlocked state. During the rotation of the fastening block 337, the fastening block 337 can be easily rotated out of the positioning groove 334 by the cooperation of the two guide surfaces, and the locking member 333 is switched from the locking state to the unlocking state. When the fastening block 337 rotates to be in contact with the abutting portion 336 of the clamping piece 332, the second guiding surface 338 can also play a guiding role, so that the abutting surface of the fastening block 337 is smoothly abutted against the abutting surface of the clamping piece 332, and the clamping piece 332 is pressed to the locking state. In order to further allow smooth abutment of the fastening block 337 on the clamping part 332, the edge of the abutment 336 of the clamping part 332 is provided with a third guide surface which can be guided into engagement with the edge of the fastening block 337. Therefore, when the fastening block 337 rotates to the locking state, the second guiding surface 338 and the third guiding surface guide each other, so that the abutting surface and the abutted surface can smoothly transition before abutting and matching, and the condition of blocking is avoided. It should be appreciated that the first guide surface 335, the second guide surface 338, and the third guide surface are configured as inclined surfaces, curved surfaces, or other shaped surfaces, so long as the guiding function is provided.

Further, a second resilient member is disposed between the fastening block 337 and the fixing base, the second resilient member being configured to apply a force to the clamping band 332 such that the fastening block 337 can abut against the outer circumference of the clamping band 332. Optionally, the second elastic member is disposed between the fastening block 337 and the fixing base, and the second elastic member is always in a stretched state, so that the fastening block 337 is under the tensile force of the second elastic member, and the fastening block 337 can continuously apply an abutment force to the clamping member 332; specifically, the bottom of the fastening block 337 is connected with a rotating shaft, the third fixing seat 330 is correspondingly provided with a mounting hole, the second elastic piece can be arranged between the rotating shaft connected with the fastening block 337 and the bottom of the mounting hole, the second elastic piece is a tension spring, and the bottom end of the rotating shaft is under the tension action of the tension spring to provide a locking force for the fastening block 337. During operation of the bearing, the second resilient member provides a certain amount of resilient deformation to the fastening block 337, reducing rigid impact due to mechanical vibration, and improving the usability of the locking member 333 and the clamp member 332. Of course, the arrangement of the second elastic member is not limited to the above, and the second elastic member may be configured to apply pressure to the fastening member, specifically: the second elastic member is placed under compression and generates a resilient force that acts on the fastener to exert a compressive force on the fastener against the anchor seat, i.e., the fastener also exerts an abutment force against the clamp member 332.

With the gradual use of the dust-binding roller 205, dust accumulation or abrasion is caused on the surface of the dust-binding roller 205, so that the dust removal effect is gradually weakened, and the cleaning quality of the plate is reduced, so that the dust-binding roller 205 needs to be subjected to post-treatment operations such as cleaning, repairing, maintenance, disassembly and replacement at regular time; likewise, the roll 301 needs to be replaced in time as it is used. To improve the efficiency of changing the paper roll 301, maintenance of the dust-binding roller 205 is facilitated. Both the dust-binding roller assembly 210 and the paper roll assembly 310 are movably disposed along the axial direction of the dust-binding roller 205. In this way, the dust-binding roller assembly 210 and the paper roll assembly 310 are convenient to carry out subsequent treatment or the spare module is directly replaced, so that the modularized disassembly and assembly of the dust-binding machine are realized.

In detail, referring to fig. 1, 2 and 16, the dust-binding roller assembly 210 and the paper roll assembly 310 are respectively provided as a movable whole, and then the movable function is satisfied by using a slide rail mechanism 400, and the slide rail mechanism 400 is provided between the dust-binding roller assembly 210 and the frame 100, and between the paper roll assembly 310 and the frame 100. In some embodiments of the present invention, the whole dust-binding roller assembly 210 is slidably connected to the frame 100 through a pull-type sliding rail assembly, so that the dust-binding roller assembly 210 and the paper roll assembly 310 can be pulled out of the frame 100, thus facilitating subsequent processing and improving working efficiency of the dust-binding machine.

Further, referring to fig. 17, a second pushing mechanism 230 is disposed on a side of the dust-binding roller assembly 210 near the first driving member 220, and the second pushing mechanism 230 is configured to apply a pushing force to the dust-binding roller assembly 210 to move the dust-binding roller assembly 210 toward a side far from the first driving member 220.

The second pushing mechanism 230 can push the dust-binding roller assembly 210 to move to a side far away from the first driving member 220. The second pushing mechanism 230 can directly use a linear driving motor and then directly act on the dust-binding roller assembly 210 to push the dust-binding roller assembly 210 to move towards the side far away from the first driving member 220; however, the designer finds that, in this way, the second pushing mechanism 230 needs to apply a pushing force along the axial direction of the dust-binding roller 205, and then needs to be disposed along the axial extending direction of the dust-binding roller 205, while the first driving member 220 is also disposed along the axial extending direction of the dust-binding roller 205, and two sides of the first driving member are disposed adjacently along the axial direction, so that for installation, the two driving members need to occupy a larger space along the axial direction of the dust-binding roller 205, which causes inconvenient installation and excessively large space occupation; on the other hand, applying a thrust force in the axial direction directly to the dust-binding roller assembly 210 requires a driving device having a large operating power, which results in an increase in input cost. Based on this, in some embodiments of the present invention, referring to fig. 18, the second pushing mechanism 230 includes a second driving member 231 and a pushing rod, the pushing rod 232 has a connecting portion and a pushing portion 233 at two ends, a rotating portion is disposed between the connecting portion and the pushing portion 233, the second driving member 231 is fixedly disposed on the frame 100, the pushing rod 232 is rotatably disposed on the frame 100 through the rotating portion, the second driving member 231 is in transmission connection with the connecting portion, and the pushing portion 233 can be driven to rotate around the rotating portion, so as to move the dust-binding roller assembly 210 to a side far away from the first driving member 220. The rotation process of the push rod 232 is similar to the lever rotation process, the second driving piece 231 applies a pushing force to the connecting part, and the pushing part 233 applies a pushing force to the dust-binding roller assembly 210, so that the second driving piece 231 does not need to be arranged in the axial extension direction of the dust-binding roller 205, and the telescopic cylinder is vertically arranged in consideration of the layout of the whole dust-binding machine device, so that the device is compact in structure, does not need to interfere with the first driving piece 220, and is convenient for the whole machine to install.

In summary, according to the dust-binding machine for the printed circuit board, by reducing the distance between the adjacent dust-binding rollers, the moving time of the same clean area of the board from the previous dust-binding roller 205 to the next dust-binding roller 205 is reduced, so that the time of static electricity action of the residual impurities of the same clean area passing through the previous dust-binding roller 205 is reduced, the adhesion firmness of the impurities is reduced, the adhesion of the impurities by the next dust-binding roller 205 is easier, and the cleanliness of the board is effectively improved; in addition, the invention does not improve the material of the dust-binding roller assembly, only optimizes the structure of the dust-binding roller, does not need additional cost input, and can effectively improve the dust removal quality. Secondly, the third fixing seat 330 for installing the paper roll assembly can lock the clamp piece through the movable locking piece, so that compared with the traditional clamp fixing mode, the use of fasteners such as bolts, screws and the like is avoided, the operation complexity is reduced, the paper roll bearing is quickly disassembled, and the paper roll is convenient to replace; furthermore, the invention also introduces the sliding rail mechanism 400 to enable the dust-binding roller assembly 210 and the paper roll assembly 310 to perform drawing movement, thereby facilitating the subsequent replacement, maintenance and other works; and a second pushing mechanism 230 is also introduced to cooperate with the dust-binding roller assembly 210 to disconnect the dust-binding roller 205 from the first driving member 220, so that the dust-binding roller assembly 210 moves away from the first driving member 220, and the whole dust-binding roller assembly 210 is pushed out, so that the dust-binding roller 205 can be cleaned, repaired, maintained or replaced later.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.

Claims

1. A stick dirt machine for printed circuit board, its characterized in that includes frame (100), be equipped with on frame (100) and stick dirt roller mechanism (200) and scroll mechanism (300), wherein:

the dust-binding roller mechanism (200) comprises a dust-binding roller assembly (210) and a first driving piece (220), wherein the first driving piece (220) is in transmission connection with the dust-binding roller (205) of the dust-binding roller assembly (210) so as to drive the dust-binding roller (205) to rotate;

the dust-binding roller assembly (210) comprises a first dust-binding roller group (201) and a second dust-binding roller group (202) which are arranged at intervals up and down, the first dust-binding roller group (201) and the second dust-binding roller group (202) both comprise at least two dust-binding rollers (205) which are arranged at intervals side by side, and the distance between every two adjacent dust-binding rollers (205) is smaller than the radius of each dust-binding roller (205);

the paper roll mechanism (300) comprises a paper roll assembly (310) and a first pushing mechanism (320), wherein the paper roll assembly (310) is arranged on the upper side and the lower side of the dust-binding roller assembly (210) in a lifting mode, and the first pushing mechanism (320) is configured to apply pushing force to the paper roll assembly (310) so that the paper roll (301) is attached to the dust-binding roller (205).

2. The dust-binding machine for printed circuit boards according to claim 1, wherein the dust-binding roller assembly (210) comprises a first fixing base (203) fixing the first dust-binding roller group (201) and a second fixing base (204) fixing the second dust-binding roller group (202);

the first fixing seat (203) is fixedly arranged, the second fixing seat (204) is movably arranged above the first fixing seat (203), a first elastic piece (206) is arranged between the first fixing seat (203) and the second fixing seat (204), and the first elastic piece (206) is configured to apply elastic force to the second fixing seat (204) so that a dust adhering channel for a plate to pass through is formed between the first dust adhering roller set (201) and the second dust adhering roller set (202).

3. The dust-binding machine for printed circuit boards according to claim 2, characterized in that a guide (207) is provided between the first holder (203) and the second holder (204), the guide (207) being arranged along the direction of relative movement between the first holder (203) and the second holder (204); the first fixing seat (203) is fixedly connected with the guide piece (207), and the second fixing seat (204) is slidably connected with the guide piece (207).

4. The dust adhesion machine for a printed circuit board according to claim 1, wherein the paper roll assembly (310) comprises a paper roll (303) and a third fixing seat (330) for fixing the paper roll (303), the third fixing seat (330) comprises a base (331), a clamp piece (332) and a locking piece (333), a first mounting groove is formed in the base (331), a second mounting groove is formed in the clamp piece (332), one end of the clamp piece (332) is rotatably connected with the base (331), and the other end of the clamp piece is detachably connected with the base (331) so that the first mounting groove and the second mounting groove are folded to form a bearing mounting hole;

the locking piece (333) has a locking state and an unlocking state, when the locking piece (333) is in the locking state, the locking piece (333) abuts against the periphery of the clamp piece (332), and the locking piece (333) is configured to apply a locking force to the clamp piece (332) toward the first mounting groove; when the locking element (333) is in an unlocking state, the locking element (333) is avoided from the rotating track of the clamping piece (332); the locking piece (333) is movably arranged on the base (331) to switch between a locking state and an unlocking state.

5. The dust bonder for a printed circuit board according to claim 4, wherein the clip member (332) has a receiving portion (336), the receiving portion (336) being located in an extension region of the first mounting groove in a first direction, the first direction being a direction in which the first mounting groove faces the second mounting groove, when the locking member (333) is in the locked state.

6. The dust adhesion machine for a printed circuit board according to claim 5, wherein the locking member (333) includes a fastening block (337) rotatably provided to the fixing base, the fixing base has a positioning groove (334) for positioning the fastening block (337), and the fastening block (337) abuts against an outer circumference of the clip member (332) and is fitted into the positioning groove (334) when the locking member (333) is in the locked state.

7. The dust-binding machine for printed circuit boards according to claim 6, wherein the fixing base is provided with a first guide surface (335) at the edge of the positioning groove (334), the fastening block (337) is provided with an abutting surface and a second guide surface (338) adjacent to the abutting surface, and the first guide surface (335) is in guide fit with the second guide surface (338) so that the fastening block (337) can rotate from the locking state to the unlocking state.

8. The dust bonder for a printed circuit board according to claim 7, wherein a second elastic member is provided between the fastening block (337) and the fixing base, the second elastic member being configured to apply a force to the clip member (332) so that the fastening block (337) can abut against an outer periphery of the clip member (332).

9. The dust bonder for printed circuit boards according to claim 1, wherein the dust roller assembly (210) and the paper roll assembly (310) are each movably disposed along the axial direction of the dust roller (205).

10. The dust-binding machine for printed circuit boards according to claim 9, wherein the dust-binding roller assembly (210) is provided with a second pushing mechanism (230) on a side close to the first driving member (220), and the second pushing mechanism (230) is configured to apply a pushing force to the dust-binding roller assembly (210) to move the dust-binding roller assembly (210) to a side away from the first driving member (220).