CN211802033U

CN211802033U - Impregnation equipment

Info

Publication number: CN211802033U
Application number: CN201922355072.9U
Authority: CN
Inventors: 王鹏; 孟运东
Original assignee: Jiangxi Shengyi Technology Co ltd
Current assignee: Jiangxi Shengyi Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-10-30
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a gumming device, which comprises a gumming tank, a gumming roller arranged in the gumming tank, a pair of metering rollers arranged above the gumming roller and at least one group of clamping components arranged between the gumming roller and the metering rollers, wherein a channel for a substrate to pass through and a temporary glue solution storage area are formed on each group of clamping components, the temporary glue solution storage area is positioned above the channel, the width of the channel is larger than the gap width between the two metering rollers, and each group of clamping components can be contacted with two side surfaces of the substrate passing through the channel, therefore, when the substrate passes through the channel, the clamping components have the scraping function on the glue solution on the two side surfaces of the substrate, which is beneficial to the glue solution to diffuse and infiltrate to the inside of the substrate, and simultaneously, the substrate is infiltrated again by the glue solution collected in the temporary glue solution storage area, thereby prolonging the gumming time of the substrate without changing the advancing speed of the substrate, and achieving the purpose of, and the production efficiency is maintained.

Description

Impregnation equipment

Technical Field

The utility model relates to a bonding sheet production facility field especially relates to a can increase gumming equipment of glue solution to the infiltration nature of bonding sheet.

Background

The adhesive sheet is also called prepreg, etc. and is the main raw material of composite material such as laminated board, etc. its production process is generally to dip the strip base material (such as fiber fabric, non-woven fabric, paper, etc.) in the resin glue solution, then to heat, etc. to remove the solvent and make it have a certain degree of solidification and crosslinking, and whether the strip base material can be dipped in the glue solution sufficiently is the prerequisite for producing high quality adhesive sheet.

In the existing dipping equipment, as shown in fig. 1, a strip-shaped substrate E enters a glue tank C under the traction action of rotating equipment, is turned upwards by a dipping roller G after being soaked in glue solution D, is scraped to remove excessive glue solution by a metering roller H to form a glue-containing substrate F with proper glue content, then continuously upwards moves for heating and other treatments, wherein a glue scraping sheet B is arranged on the metering roller H and is used for cleaning residual glue on the metering roller H. In the existing glue dipping equipment, the base material is subjected to one-time glue dipping and two-time extrusion (from a glue dipping roller G and a metering roller H respectively), and the problem of insufficient soaking of the bonding sheet is easily caused in the soaking process, which is specifically shown in the fact that the glue-containing base material F contains defects such as air bubbles and cavities, and the defects have great negative effects on the quality of composite materials such as laminated boards and the like made of the bonding sheet.

At present, the impregnation effect of the base material is improved by impregnation equipment, which mainly comprises the following modes:

firstly, the residence time of the base material in the glue solution is prolonged, for example, the running speed of the base material is reduced, but the mode correspondingly reduces the production efficiency;

secondly, improving the free diffusion speed of the glue solution, for example, heating the glue solution or stirring the glue solution by adopting ultrasonic waves to increase the free diffusion speed of the glue solution; however, increasing the temperature of the glue solution increases the volatilization of the solvent in the glue solution, increases the concentration of the toxic solvent in the air, has potential safety hazards of explosion and even can cause adverse effects on the performance of the glue solution, the structure of the base material and the like;

increasing the acting force of the outside on the glue-containing base material, such as increasing the number of glue dipping rollers, or increasing a clamping shaft in glue solution to extrude the base material and the like; however, increasing the number of the dipping rollers and the clamping shafts increases the extrusion force on the substrate, easily causes the structure of the substrate to be damaged, reduces the strength of the substrate, and has a great loss in the performance of the composite material prepared by the dipping rollers.

Therefore, there is a need to provide a dipping apparatus which can improve the dipping effect and the production efficiency without damaging the glue solution and the substrate, so as to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can not lead to the fact destruction to glue solution and substrate to can improve infiltration effect and production efficiency's gumming equipment.

In order to achieve the above purpose, the technical scheme of the utility model is that: the glue dipping equipment comprises a glue groove, glue dipping rollers arranged in the glue groove, a pair of metering rollers arranged above the glue dipping rollers and at least one group of clamping components arranged between the glue dipping rollers and the metering rollers, wherein a channel for a substrate to pass through and a temporary glue solution storage area are formed on each group of clamping components, the temporary glue solution storage area is positioned above the channel, the width of the channel is greater than the width of a gap between the two metering rollers, and each group of clamping components can be in contact with two side faces of the substrate passing through the channel.

Preferably, the centre line of the width of the channel lies in the same vertical plane as the centre line of the gap of the metering roll.

Preferably, each group of the clamping assemblies includes two clamping rollers parallel to the metering roller and arranged at intervals, the gap between the two clamping rollers forms the channel, and the region between the two clamping rollers and the metering roller forms the temporary glue solution storage region.

Preferably, each of the nip rollers is cylindrical and has a diameter greater than a diameter of the metering roller.

Preferably, each of the nip rollers is fixedly arranged.

Preferably, each of the nip rollers is rotatably disposed, and the rotation direction of the nip rollers is the same as or opposite to the traveling direction of the substrate.

Preferably, the two nip rollers of each group of nip assemblies rotate at the same speed.

Preferably, the gumming apparatus further comprises at least one pair of rubber sheets, each rubber sheet is disposed corresponding to one of the nip rollers and is in contact with the nip roller, and the rubber sheets are used for scraping off residual rubber on the nip rollers.

Preferably, the contact point between each of the rubber strips and the corresponding nip roller is the highest point of the nip roller or the position of one side of the nip roller close to the channel.

Preferably, each group of the clamping assemblies comprises two obliquely arranged clamping plates, the channel is formed by a gap between the bottoms of the two clamping plates, and the temporary glue solution storage area is formed by an area between the two clamping plates and the metering roller.

Compared with the prior art, because the utility model discloses a gumming equipment, add at least a set of centre gripping subassembly between gluey groove and metering roll, all be formed with passageway and the temporary storage area of glue solution that supplies the substrate to pass through on every group centre gripping subassembly, the temporary storage area of glue solution is located the top of passageway, and the width of passageway is greater than the gap width between two metering rolls, every group centre gripping subassembly homoenergetic contacts with the both sides face of substrate simultaneously, therefore, when the substrate passes through aforementioned passageway, the centre gripping subassembly has the scraping effect to the glue solution of the both sides face of substrate, help the glue solution to the inside diffusion and infiltration of substrate, the centre gripping subassembly does not have the extrusion effect to the substrate simultaneously, avoid destroying the substrate, and simultaneously, the glue solution that is scraped by the metering roll is collected in the temporary storage area of glue solution, the substrate soaks once more when passing through the temporary storage area of glue solution, and then lengthen its gumming time, the purpose of enhancing the infiltration effect of the bonding sheet is achieved, and the production efficiency is kept.

Drawings

Fig. 1 is a schematic structural diagram of a conventional impregnation apparatus.

Fig. 2 is a schematic structural diagram of an embodiment of the gumming apparatus of the present invention.

Fig. 3 is a schematic structural diagram of another embodiment of the gumming apparatus of the present invention.

Fig. 4 is a schematic structural diagram of another embodiment of the gumming apparatus of the present invention.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.

First, as shown in fig. 2-4, the dipping apparatus 100 provided by the present invention comprises a glue tank 110, a dipping roller 120 disposed in the glue tank 110, a pair of metering rollers 130 disposed above the glue tank 110, and at least one set of clamping assemblies 140 disposed between the dipping roller 120 and the metering rollers 130, wherein the clamping assemblies 140 are disposed above the glue tank 110, each set of clamping assemblies 140 is formed with a channel 141 for a substrate to pass through and a temporary glue solution storage area 142, and the channel 141 and the temporary glue solution storage area 142 are sequentially disposed along the advancing direction of the substrate E, in a preferential manner, the glue solution temporary storage area 142 is located above the channel 141, and the width of the channel 141 is greater than the width of the gap between the two metering rollers 130, and the center line in the width direction of the passage 141 and the center line of the gap of the two metering rollers 130 are located in the same vertical plane, meanwhile, each set of clamping members 140 can contact both sides of the substrate E passing through the passage 141. Therefore, when the substrate E after gum dipping passes through the channel 141 of the clamping assembly 140, the clamping assembly 140 contacts with the gum solution on the two side surfaces of the substrate E, and scrapes the substrate E, so as to facilitate the gum solution to further diffuse into the substrate E, meanwhile, the clamping assembly 140 can block the gum solution scraped by the metering roller 130, so that the gum solution is gathered in the gum solution temporary storage area 142, and the substrate E undergoes secondary gum dipping when passing through the gum solution temporary storage area 142, so as to prolong the gum dipping time.

More specifically, the clamping assembly 140 of the present invention is composed of two clamping rollers 143 or two clamping plates 144, and different embodiments of the gumming apparatus 100 of the present invention will be described with reference to fig. 2-4.

Referring to fig. 2, in an embodiment of the present invention, only one set of clamping assembly 140 is provided, the clamping assembly 140 includes two clamping rollers 143 parallel to the metering roller 130 and disposed at an interval, a gap between tangent lines of the two clamping rollers 143 in a vertical plane forms a channel 141, and meanwhile, a width of the channel 141 between the two clamping rollers 143 is greater than a width of the gap between the two metering rollers 130, so as to ensure that the clamping rollers 143 do not extrude the substrate E, and at the same time, the gap between the two clamping rollers 143 cannot be too large, so as to ensure that the two clamping rollers 143 can both contact with the glue solution on both sides of the substrate E passing through the channel 141, so as to scrape the substrate E. In addition, the two nip rollers 143 are both cylindrical and have the same diameter, and the diameter of each nip roller 143 is larger than the diameter of the metering roller 130, so that the temporary glue storage area 142 surrounded by the area above the two nip rollers 143 and located between the outer walls of the two nip rollers is larger, that is, in the horizontal direction perpendicular to the axial direction of the two nip rollers 143, the width of the temporary glue storage area 142 is far larger than the width of the channel 141, and the larger the diameter of the nip rollers 143 is, the more glue can be stored in the temporary glue storage area 142 formed between the two nip rollers 143, which is more beneficial to the secondary infiltration of the substrate E, but the diameter of the nip rollers 143 needs to meet the space limitation of the gumming apparatus 100.

With reference to fig. 2, in the present embodiment, the two nip rollers 143 of the clamping assembly 140 may be fixedly or rotatably disposed, and when rotatably disposed, the two nip rollers 143 may be rotated reversely or clockwise, wherein the reverse rotation means that the rotation directions of the two nip rollers 143 are opposite to the traveling direction of the substrate E, and the clockwise rotation means that the rotation directions of the two nip rollers 143 are the same as the traveling direction of the substrate E; the rotational speeds of the two nip rollers 143 may be the same or different. The preferred embodiment of this embodiment is that both nip rollers 143 are arranged clockwise, i.e., the left nip roller 143 shown in fig. 2 rotates counterclockwise, the right nip roller 143 rotates clockwise, and the rotational speeds of both nip rollers 143 are the same.

Referring to fig. 2 again, the gumming apparatus 100 further includes a pair of rubber strips 150 engaged with the two nip rollers 143, each rubber strip 150 is disposed corresponding to one nip roller 143 and is in contact with the nip roller 143, and a contact point between the rubber strip 150 and the nip roller 143 is a highest point of the nip roller 143 or a position of one side of the nip roller 143 close to the channel 141, and the rubber strip 150 is used for scraping residual rubber on the nip roller 143.

In addition, the gumming apparatus 100 further includes a pair of rubber scrapers 150 cooperating with the pair of metering rollers 130 for scraping off residual rubber on the metering rollers 150.

Referring to fig. 3, in another embodiment of the glue dipping apparatus 100 of the present invention, the difference from the above embodiment is only: two sets of clamping assemblies 140 and two pairs of rubber sheets 150 are provided, the two sets of clamping assemblies 140 are disposed between the metering roller 130 and the glue dipping roller 120 at intervals, and the two sets of clamping assemblies 140 are both located above the glue tank 110, each pair of rubber sheets 150 is disposed corresponding to one set of clamping assemblies 140, wherein the disposing manner of each set of clamping assemblies 140 and the corresponding rubber sheets 150 is the same as that in the above embodiments, and therefore, the description thereof is omitted.

In this embodiment, the rollers 143 of each group of clamping assemblies 140 may be all fixedly or all rotatably disposed, and the rotating direction and the rotating speed of the rollers 143 of each group of clamping assemblies 140 may be the same or different, and it is preferable that the rollers 143 of each group of clamping assemblies 140 are all clockwise and have the same rotating speed.

In this embodiment, the two sets of clamping assemblies 140 are arranged, so that the glue solutions on the two side surfaces of the substrate E are scraped twice, which is more favorable for promoting the glue solutions to further diffuse into the substrate E, and the glue solutions are subjected to the secondary glue dipping treatment in the two temporary glue solution storage areas 142, so that the glue dipping time is longer, and the soaking effect is further improved.

Of course, the number of the clamping assemblies 140 of the gumming apparatus 100 of the present invention is not limited to the above two embodiments, and the number thereof can be flexibly set according to the gum dipping effect and the installation space of the gumming apparatus 100 that are specifically required to be achieved.

Referring to fig. 4, in another embodiment of the glue dipping apparatus 100 of the present invention, the difference between the two embodiments is that: the structure of the clamping assembly 140, in this embodiment, the clamping assembly 140 includes two clamping plates 144 that are symmetrically arranged, each clamping plate 144 is arranged obliquely upward, so that a temporary glue storage area 142 with an upward gradually expanding opening is formed between the two clamping plates 144, and a gap between bottoms of the two clamping plates 144 forms a channel 141, therefore, in the horizontal direction, the width of the temporary glue storage area 142 is much greater than the width of the channel 141, and the longer the upward extending length of the clamping plates 144 is, the more glue can be stored in the temporary glue storage area 142 formed between the two clamping plates 144 is, the more secondary infiltration of the substrate E is facilitated, as long as the upward extending length of the clamping plates 144 can meet the space limitation of the gumming apparatus 100.

It should be understood that the clamping assembly 140 of the present invention is not limited to two clamping rollers 143 or two clamping plates 144, and other clamping members can be used.

The working principle and process of the dipping apparatus 100 of the present invention will be described with reference to fig. 2-4 again.

After gum dipping is started, the strip-shaped base material E enters the gum tank 110 under the traction action of the rotating equipment, the base material is dipped in the gum solution and then turns to move upwards through the gum dipping roller 120, and then the base material E needs to sequentially pass through the clamping assembly 140 and the two metering rollers 130 to obtain the gum-containing base material F with proper gum content.

When the substrate E passes through the channel 141 formed between the two nip rollers 143 or the two nip plates 144, the two nip rollers 143 or the two nip plates 144 contact with the glue solution on the two side surfaces of the substrate E, and have a scraping effect on the substrate E, which is favorable for promoting the glue solution to further diffuse into the substrate E, so as to promote the glue solution to infiltrate; in addition, the two lower nip rollers 143 or the two lower nip plates 144 can block the glue solution scraped by the metering roller 130, so that the glue solution is temporarily stored in the temporary glue solution storage area 142 formed between the two nip rollers 143 or the two lower nip plates 144, when the substrate E passes through the temporary glue solution storage area 142, the glue solution in the temporary glue solution storage area secondarily glues the substrate E to achieve the purpose of prolonging the glue dipping time, and the purpose of enhancing the infiltration effect of the adhesive sheet is achieved by promoting the diffusion of the glue solution and prolonging the glue dipping time.

After passing through the metering roller 130, the substrate E is scraped to remove excess glue solution, and becomes a glue-containing substrate F with a proper glue content, and then goes upward to heat and the like.

In summary, because the glue dipping apparatus 100 of the present invention adds at least one group of clamping assemblies 140 between the glue tank 110 and the metering roller 130, each group of clamping assemblies 140 forms a channel 141 for the substrate E to pass through and a temporary glue solution storage area 142, the width of the channel 141 is greater than the gap width between the two metering rollers 130, and each group of clamping assemblies 140 can contact with both side surfaces of the substrate E, therefore, when the substrate E passes through the channel 141, the clamping assemblies 140 scrape the glue solution on both side surfaces of the substrate E, which helps the glue solution to diffuse and infiltrate into the substrate E, and meanwhile, the clamping assemblies 140 hardly squeeze the substrate E, thereby avoiding damaging the substrate E, meanwhile, the temporary glue solution storage area 142 collects the glue solution scraped by the metering roller 130, the substrate E infiltrates again when passing through the temporary glue solution storage area 142, and further prolongs the glue dipping time without changing the advancing speed of the substrate E, the purpose of enhancing the infiltration effect of the bonding sheet is achieved, and the production efficiency is kept.

The structure and arrangement of other parts of the gumming apparatus 100 according to the present invention are conventional arrangements known to those skilled in the art, and will not be described in detail herein.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. The gum dipping equipment is characterized by further comprising at least one group of clamping assemblies arranged between the gum dipping rollers and the metering rollers, wherein a channel for a substrate to pass through and a temporary glue solution storage area are formed on each group of clamping assemblies, the temporary glue solution storage area is located above the channel, the width of the channel is larger than the width of a gap between the two metering rollers, and each group of clamping assemblies can be in contact with two side faces of the substrate passing through the channel.

2. The impregnation apparatus of claim 1, wherein a widthwise centerline of the channel is in the same vertical plane as a centerline of the gap of the metering roll.

3. The impregnation apparatus of claim 1 or 2, wherein each set of said nip assemblies comprises two spaced apart nip rollers parallel to said metering roller, a gap between said nip rollers forming said channel, and a region between said nip rollers and said metering roller forming said temporary glue storage area.

4. The impregnation apparatus of claim 3, wherein each of the nip rollers is cylindrical and has a diameter greater than a diameter of the metering roller.

5. The impregnation apparatus of claim 3, wherein each of the nip rollers is fixedly disposed.

6. The impregnation apparatus of claim 3, wherein each of the nip rollers is rotatably disposed and the nip rollers are rotated in a direction the same as or opposite to the direction of travel of the substrate.

7. The impregnation apparatus of claim 6, wherein the rotation speeds of the two nip rollers of each set of nip assemblies are the same.

8. The apparatus for dipping glue according to claim 3, further comprising at least one pair of doctor blades, each of the doctor blades being disposed corresponding to and contacting a corresponding one of the nip rollers, the doctor blades being configured to scrape off residual glue from the nip rollers.

9. The impregnation apparatus of claim 8, wherein the contact point between each said doctor blade and the corresponding said nip roller is the highest point of the nip roller or the side of the nip roller near the channel.

10. The impregnation apparatus of claim 1, wherein each set of said clamping assemblies comprises two obliquely arranged clamping plates, a gap between bottoms of the two clamping plates forms said channel, and an area between the two clamping plates and the metering roll forms said temporary glue storage area.