CN221067450U

CN221067450U - Solar slurry recycling device

Info

Publication number: CN221067450U
Application number: CN202323151444.9U
Authority: CN
Inventors: 朱晶; 于忠堂
Original assignee: Huai'an Jietai New Energy Technology Co ltd
Current assignee: Huai'an Jietai New Energy Technology Co ltd
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-06-04
Anticipated expiration: 2033-11-21

Abstract

The utility model provides a solar slurry recycling device, which relates to the technical field of solar photovoltaics and comprises the following components: a collection portion adapted to be placed in a screen; a scraper movably disposed in the collecting portion; and the driving component is arranged on the collecting part, and the scraper is enabled to displace in the collecting part by the driving component, so that the purpose that the slurry stored in the collecting part flows into the slurry bottle. Compared with the currently commonly used devices such as a plane shovel, a glue binding scraping bar and the like, the recycling device with the novel structure improves the recycling efficiency of the sizing agent in the screen.

Description

Solar slurry recycling device

Technical Field

The utility model relates to the technical field of solar photovoltaics, in particular to a solar slurry recycling device.

Background

After the working procedures of texturing, diffusion, PECVD and the like, the solar cell is manufactured into a PN junction, current can be generated under illumination, and in order to lead out the generated current, positive and negative electrodes are required to be manufactured on the surface of the cell. There are many methods of manufacturing electrodes, and screen printing is one of the most common production processes for manufacturing solar cell electrodes. The screen printing is to print a preset pattern on a substrate in an embossing mode, and the equipment consists of three parts, namely battery back silver paste printing, battery back aluminum paste printing and battery front silver paste printing. The working principle is as follows: the slurry is penetrated through partial mesh of the silk screen pattern, and a certain pressure is applied to the slurry part of the silk screen by a scraper, and the silk screen pattern moves towards the other end of the silk screen. The ink is pressed from the mesh of the pattern portion onto the substrate by the doctor blade while being moved. The printing paste has the viscosity to fix the print in certain range, so that the scraper makes linear contact with the screen plate and the substrate during printing and the contact line moves with the scraper to complete the printing stroke.

The slurry in the screen plate is often replaced on the screen production line due to slurry experiments; meanwhile, when a series of bad problems such as slurry leakage, grid breakage and the like occur in the screen, the screen needs to be replaced, so that the slurry in the failed screen is recovered.

The residual silver paste used in screen printing not only causes great harm to the environment, but also causes cost waste due to high cost of the silver paste. Currently, on a production line of a photovoltaic solar cell production workshop, a plane shovel and a colloid scraping strip are generally adopted to recycle slurry in a screen plate, so that time and labor are wasted; when the hand of the production line is short, the slurry recovery time is long, and the yield of the production line and the efficiency of the battery piece can be influenced to a certain extent.

Disclosure of utility model

In order to solve the problems that in the prior art, the use of a plane shovel and a colloid scraping strip to recycle the slurry in a screen plate wastes time and labor, so as to influence the quality of the slurry and cause a certain influence on the yield of a production line, the utility model provides a solar slurry recycling device, which comprises:

A collecting part arranged in the screen plate, wherein the slurry on the screen plate is collected and stored in the collecting part by making the collecting part displace in the screen plate;

And the driving component is arranged on the collecting part, one end of the driving component is connected with the scraper arranged in the collecting part, and the scraper is enabled to displace in the collecting part by the driving component, so that the purpose that the slurry stored in the collecting part flows to the slurry bottle in a directional flow way is achieved.

Preferably, the collecting part is surrounded by a bottom plate, a folding plate and a baffle plate and is provided with a cavity;

Two opposite sides of the bottom plate are respectively provided with a folding plate, and one side of the folding plate, which is far away from the bottom plate, is provided with a baffle plate.

Preferably, the bottom plate is composed of two surfaces, wherein one surface is a moving surface of the scraper, and the other surface is a stopping surface of the scraper;

And an opening is arranged on the stopping surface on the bottom plate.

Preferably, the handle is arranged at the edge of the opening, the handle is a hollow cylinder with two open ends, a limit hole is arranged at one end of the handle far away from the opening, and threads are arranged on the outer surface of one end of the handle far away from the opening;

The driving component is arranged in the handle, and one end of the driving component penetrates through the handle and is connected with the scraper arranged in the cavity.

Preferably, the driving assembly comprises a pushing rod, the pushing rod is a long rod with different thicknesses at two ends, and one thicker end of the pushing rod penetrates through the handle to be connected with the scraper in the cavity;

The thinner end of push rod is gone up to overlap and is equipped with the spring.

Preferably, the pushing rod is provided with an elastic limiting part, the pushing rod at the position below the limiting part is provided with a groove for accommodating the limiting part, and when the pushing rod is installed in the handle, the limiting part is located in the limiting hole of the handle.

Preferably, the cap is a hollow tube with one closed end, a thread matched with the handle is arranged on the inner wall of one end of the opening of the cap, the cap is detachably arranged at one end of the handle away from the opening, and when the cap is arranged on the handle and the limiting piece is positioned in the limiting hole, the spring is in a compressed state.

Preferably, a plurality of support rings are installed on the thicker end of the pushing rod and concentrically with the pushing rod, and the outer diameter of each support ring is equal to the inner diameter of the handle.

Preferably, a corrugated pipe is arranged near the edge of the opening on one side of the scraper, and one end, away from the opening, of the corrugated pipe is connected with the scraper.

Preferably, a guide strip is arranged on one side of the baffle far away from the stopping surface on the bottom plate, the guide strip is made of elastic material, and the guide strips are positioned on the same plane and are splayed

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the folding plate is arranged between the baffle plate and the folding plate to connect the baffle plate and the folding plate, and the size of the collecting part is adjusted by folding or unfolding the folding plate so as to adapt to the screen plates with different sizes, thereby being more convenient for recycling the slurry in the screen plates; meanwhile, the baffles arranged at the two sides of the collecting part can prevent the slurry stored in the cavity from overflowing the cavity.

2. The utility model is convenient to hold by the handle arranged at the edge of the opening, and pushes the collecting part to displace in the screen. And the slurry in the screen plate is recovered into the cavity through the guide strips arranged on the baffle plate; then, the scraper arranged in the cavity is moved by matching a pushing rod arranged in the handle with the spring, so that the slurry in the cavity is pushed into the slurry bottle; in addition, a corrugated pipe is sleeved at the joint of the scraper and the electric push rod, so that slurry is prevented from penetrating into the handle.

Drawings

For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the apparatus of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of a side view of the apparatus of the present utility model;

FIG. 3 is an enlarged partial view of a handle portion of the present utility model;

Wherein: 1-bottom plate, 1 a-cavity, 2-folded plate, 3-baffle, 4-handle, 5-scraper, 6-cap, 7-limiting piece, 8-guide bar, 9-open pore, 10-push rod, 11-bellows, 12-limiting hole, 13-groove, 14-screw thread, 15-spring, 16-cap, 17-support ring.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the screen printing process link of solar cell silicon wafer production, the slurry in the screen plate is required to be recovered when the screen plate is required to be replaced due to slurry experiment requirement or a series of bad problems such as slurry leakage and grid leakage occur in the screen plate, and a plane shovel or a glue scraping strip is generally adopted to recover the slurry in the screen plate, but the slurry used in screen printing is usually sticky, so that the recovery efficiency is lower, particularly, the slurry recovery time is longer under the condition of shortage of labor staff of a production line or heavy production tasks, the speed of the production line of the whole solar cell is influenced, and the yield of the solar cell is also reduced.

In the face of the above problems, the solution generally adopted by those skilled in the art is to optimize the structure of the existing slurry recovery device on the original basis, so as to improve the efficiency of slurry recovery, but the improvement of efficiency is not obvious.

After long-term experiments and summaries, the inventor of the utility model provides a novel recovery device structure, slurry in the screen is collected in the cavity through the collection part, and the slurry in the cavity is pushed into the slurry bottle through the driving component, so that the recovery efficiency of the slurry in the screen is greatly improved.

This embodiment has adopted a solar energy thick liquids recovery unit, collects the thick liquids in the half tone through water conservancy diversion strip and the cooperation of collecting part in the cavity to in pushing the thick liquids bottle of cavity to through drive assembly, promoted the recovery efficiency of thick liquids in the half tone greatly. The specific technical scheme is as follows:

Referring to fig. 1, a solar paste recycling apparatus adapted to collect solar paste stored in a screen, the recycling apparatus comprising:

a collection portion adapted to be placed in a screen;

a scraper 5 movably disposed in the collecting section;

And the driving component is arranged on the collecting part, and the scraper 5 is displaced in the collecting part by the driving component, so that the purpose of enabling the slurry stored in the collecting part to flow into the slurry bottle is achieved.

Specifically, the collecting part is surrounded by a bottom plate 1, a folding plate 2 and a baffle plate 3 and is provided with a cavity 18;

Two opposite sides of the bottom plate 1 are respectively provided with a folding plate 2, one side of the folding plate 2 far away from the bottom plate 1 is provided with a baffle plate 3, and the folding plates 2 can be adjusted to adapt to the screen printing plates with different sizes; the baffles 3 on both sides prevent the slurry stored in the cavity 18 from overflowing the collecting portion too much.

Specifically, the bottom plate 1 is composed of two surfaces, wherein one surface is a moving surface of the scraper 5, and the other surface is a stopping surface of the scraper 5;

The rest surface on the base plate 1 is provided with an opening, and a subsequent driving assembly is arranged through the opening 9.

Referring to fig. 2 to 3, specifically, a handle 4 is disposed at the edge of the opening 9, the handle 4 is a hollow cylinder with two open ends, a limit hole 12 is disposed at one end of the handle 4 away from the opening 9, and a thread 14 is disposed at the outer surface of one end of the handle 4 away from the opening 9;

The drive assembly is arranged in the handle 4, one end of the drive assembly penetrates through the handle 4 and is connected with the scraper 5 positioned in the cavity 18 to move in the screen plate, the handle 4 can serve as a handheld force application point, and in addition, a limit hole 12 on the handle 4 is matched with a limit piece 7 on the push rod 10 to serve as a switch for controlling the movement of the push rod 10; the threads 14 on the handle 4 cooperate with the threads 14 on the cap 16 to removably mount the cap 16 at the end of the handle 4 remote from the collection portion and compress the spring 15 to power the movement of the push rod 10.

Referring to fig. 3 again, specifically, the driving assembly includes a pushing rod 10, where the pushing rod 10 is a long rod with different thicknesses at two ends, and a thicker end of the pushing rod 10 penetrates through the handle 4 to be connected with the scraper 5 located in the cavity 18;

the thinner end of the push rod 10 is sleeved with a spring 15, and the purpose of the push rod 10 with two sections of uneven thickness is to compress the spring 15 sleeved on the thinner end of the push rod 10 by matching with a cap 16, so that thrust for displacing the push rod 10 is provided.

Specifically, the push rod 10 is provided with an elastic limiting piece 7, the push rod 10 at the position below the limiting piece 7 is provided with a groove 13 for accommodating the limiting piece 7, when the push rod 10 is installed in the handle 4, the limiting piece 7 is located in the limiting hole 12 of the handle 4, when the limiting piece 7 is located in the limiting hole 12, the spring 15 is in a compressed state, when slurry in the cavity 18 needs to be emptied, the limiting piece 7 is pressed down to fall into the groove 13 below the limiting hole 12, the push rod 10 only receives thrust generated by releasing the compressed spring 15, and at the moment, the push rod 10 moves towards the direction approaching to the cavity 18, and the scraper 5 connected with the push rod 10 also simultaneously displaces, so that the slurry in the cavity 18 flows to the slurry bottle.

Specifically, the cover cap 16 is a hollow tube with one closed end, a thread 14 matched with the handle 4 is provided on an inner wall of an opening end of the cover cap 16, the cover cap 16 is detachably mounted on an end of the handle 4 away from the opening 9, and when the cover cap 16 is mounted on the handle 4 and the limiting piece 7 is located in the limiting hole 12, the spring 15 is in a compressed state.

Specifically, a plurality of supporting rings 17 are installed on the thicker end of the push rod 10 and concentrically with the push rod 10, the outer diameter of the supporting rings 17 is equal to the inner diameter of the handle 4, and the main purpose of adding the supporting rings 17 is to make the push rod 10 and the handle 4 always concentrically, so that the loss of the spring 15 caused by the fact that the stress direction is not in the same direction when the pushing force is applied to the push rod 10 is reduced.

Specifically, be close to trompil 9 edge of scraper 5 one side is provided with bellows 11, bellows 11 keep away from the one end of trompil 9 with scraper 5 links to each other, and the thick liquids in the cavity 18 of in-service use storage in the collecting part can unavoidably permeate, diffuse to the back of scraper 5 and the position of trompil 9 in the removal in-process of scraper 5, because thick the thick liquids can influence the removal of push rod 10 in the handle 4 that links to each other with trompil 9, consequently adopt collapsible bellows 11 to seal up push rod 10 between scraper 5 and the trompil 9, avoided the influence of the thick liquids of diffusion to the scraper 5 displacement.

Specifically, a guide strip 8 is installed on one side of the baffle 3 away from the bottom plate 1, the guide strip 8 is made of elastic material, and the guide strip 8 is located on the same plane and is in a splayed shape.

Due to the special structure of the screen, when the collecting part moves in the screen, the flow guide strips 8 on the baffles 3 at the two sides can automatically gather the slurry in the screen and push the slurry into the cavity 18.

The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.

Claims

1. A solar energy slurry recovery device adapted to collect solar energy slurry stored in a screen, the recovery device comprising:

a collection portion adapted to be placed in a screen;

A scraper movably disposed in the collecting portion;

And the driving component is arranged on the collecting part, and the scraper is enabled to displace in the collecting part by the driving component, so that the purpose that the slurry stored in the collecting part flows into the slurry bottle.

2. The solar slurry recovery device according to claim 1, wherein the collecting portion is surrounded by a bottom plate, a folding plate and a baffle plate and has a cavity;

3. A solar slurry recovery device according to claim 2, wherein the base plate is composed of two faces, one of which is the moving face of the scraper and the other of which is the resting face of the scraper;

And an opening is arranged on the stopping surface on the bottom plate.

4. A solar slurry recycling apparatus according to claim 3, wherein a handle is provided at the edge of the opening, the handle is a hollow cylinder with two open ends, a limit hole is provided at one end of the handle away from the opening, and a thread is provided at the outer surface of one end of the handle away from the opening;

5. The solar slurry recycling apparatus according to claim 4, wherein the driving assembly comprises a pushing rod, the pushing rod is a long rod with different thicknesses at two ends, and one thick end of the pushing rod penetrates through the handle to be connected with a scraper in the cavity;

and a spring is sleeved on the thin end of the pushing rod.

6. The solar slurry recycling apparatus according to claim 5, wherein the pushing rod is provided with an elastic limiting member, and the pushing rod below the limiting member is provided with a groove for accommodating the limiting member, and the limiting member is located in the limiting hole of the handle when the pushing rod is installed in the handle.

7. The solar slurry recycling device according to claim 6, wherein the cap is a hollow tube with one end closed, threads matched with the handle are arranged on an inner wall of one end of the opening of the cap, the cap is detachably mounted on one end of the handle far away from the opening, and the spring is in a compressed state when the cap is mounted on the handle and the limiting piece is located in the limiting hole.

8. The solar slurry recycling apparatus according to claim 6, wherein a plurality of support rings are installed on a thick end of the push rod concentrically with the push rod, and an outer diameter of the support rings is equal to an inner diameter of the handle.

9. The solar slurry recycling apparatus according to claim 4, wherein a corrugated pipe is provided near an edge of the opening on one side of the scraper, and an end of the corrugated pipe away from the opening is connected to the scraper.

10. The solar slurry recycling device according to claim 2, wherein a guide strip is installed on one side of the baffle plate away from the stopping surface on the bottom plate, the guide strip is made of elastic materials, and the guide strips are located on the same plane and are splayed.