Glue supply device for photovoltaic cell production

Abstract

The invention discloses a glue supply device for photovoltaic cell production, which is characterized in that a glue storage chamber is formed between the lower part of a movable sleeve and a sealing plate of a glue passing sleeve, the lower part of a connecting rod is provided with a convex part which is outward along the radial direction, and the lower end of the movable sleeve can be in sealing fit with the upper surface of the convex part, so that a glue outlet chamber is formed between the movable sleeve and the connecting rod; the glue inlet chamber and the glue storage chamber are communicated through a plurality of glue passing through holes formed in the sealing plate, a glue outlet hole communicated with the glue outlet chamber is formed in the side wall of the upper portion of the movable sleeve, a glue outlet runner is arranged between the glue outlet hole and a glue outlet in the cylinder sleeve, and the upper surface of a protruding part on the connecting rod is a conical face with the lower end open. The lower end of the movable sleeve is provided with an inner chamfer face capable of being attached to the conical face. By means of the glue supply device, glue can be continuously supplied outwards at a large flow, the stability of the pressure and flow of output glue can be guaranteed, uniform and stable pressure can be provided for glue liquid, and therefore continuous and stable glue supply is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a glue supply device for photovoltaic cell production used for gluing in a photovoltaic processing production line. Background Art

[0002] Solar cells, or photovoltaic cells, are electrical devices that convert light energy directly into electrical energy through the photovoltaic effect. The photovoltaic effect is a physical and chemical phenomenon. It is a form of photocell and is defined as a device whose electrical properties such as current, voltage or resistance change when exposed to light. Individual solar cell devices can be combined into modules, also known as solar panels. The glue supply equipment used for photovoltaic cell glue application often results in unstable and uneven glue output due to the large glue supply pressure and flow rate, which affects the glue application quality. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a glue supply device for photovoltaic cell production, which can not only realize the continuous outward supply of glue at a large flow rate, but also ensure the stability of the output glue pressure and flow rate, and can also provide uniform and stable pressure for the glue liquid, thereby ensuring the continuous and stable supply of glue.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a glue supply device for photovoltaic cell production, comprising: a carrier plate for placing a barrel, at least two lifting cylinders vertically installed on the upper surface of the carrier plate, a movable plate connected between the upper ends of the piston rods of the lifting cylinders, and a pressure plate connected to the movable plate through at least two vertical connecting rods, a vertically arranged cylinder is installed on the lower surface of the movable plate, a cylinder sleeve is connected to the main body of the cylinder, the pressure plate is arranged directly below the vertically extending cylinder sleeve, a vertically extending upper connecting shaft is installed at the lower end of the piston rod of the cylinder, the lower end of the upper connecting shaft penetrates into the cylinder sleeve, a glue inlet through hole connected to the inner cavity of the cylinder sleeve is provided in the center of the pressure plate for sealing connection with the inner side wall of the barrel, a glue outlet is provided on the side wall of the upper end of the cylinder sleeve, and a sealing ring is provided on the glue outlet and between the inner wall of the cylinder sleeve and the outer wall of the upper connecting shaft; The lower end of the cylinder sleeve is sealed and connected with a glue passing sleeve, and the lower end of the glue passing sleeve with a sealing plate at the upper end is sealed and connected with a glue suction cylinder, and the lower end of the glue suction cylinder is embedded in the glue inlet through hole on the pressure plate, and the lower end of the upper connecting shaft is connected with a lower connecting shaft through a connecting rod, and the lower end of the vertically extending lower connecting shaft passes through the glue passing sleeve and is equipped with a glue scraper spoon, and a glue scraper seal is arranged above the glue scraper spoon, and the glue scraper seal includes a lower annular portion, an upper annular portion with an outer diameter smaller than the inner diameter of the lower annular portion, and a connecting rib portion, and the lower annular portion and the upper annular portion are concentrically arranged. The annular parts are connected by two symmetrically arranged connecting ribs, the upper annular part can be slidably mounted on the lower link shaft, and a stop protrusion extending outward is arranged on the lower link shaft and above the upper annular part. When the scraper seal slides to the bottom along the lower link shaft, the lower inner wall of the lower annular part is in sealing contact with the upper outer wall of the scraper spoon, and the inner wall of the upper end of the glue suction cylinder is an inner conical surface open downward. When the scraper seal moves to the top along the lower link shaft, the upper outer wall of the lower annular part is in sealing contact with the lower part of the inner conical surface. A movable part which can move in the vertical direction is arranged inside the glue-passing sleeve and below the sealing plate. The sealing sleeve is mounted on the lower connecting shaft. The lower part of the movable part can be sealed and connected with the upper end of the glue suction cylinder, so as to form a glue feeding chamber between the glue-passing sleeve, the glue suction cylinder and the movable part. A movable sleeve is mounted on the outer side of the connecting rod. A stopper is arranged above the movable sleeve which can move in the vertical direction. The outer surface of the lower part of the movable sleeve is sealed and connected with the inner wall of the cylinder sleeve, so as to form a glue storage chamber between the lower part of the movable sleeve and the sealing plate of the glue-passing sleeve. The lower part has a protrusion extending radially outward, and the lower end of the movable sleeve can be sealed with the upper surface of the protrusion, so as to form a glue discharge chamber between the movable sleeve and the connecting rod. The glue inlet chamber and the glue storage chamber are connected through a plurality of glue through holes opened on the sealing plate. A glue discharge hole connected to the glue discharge chamber is opened on the side wall of the upper part of the movable sleeve, and a glue discharge channel is provided between the glue discharge hole and the glue outlet on the cylinder sleeve. The upper surface of the protrusion on the connecting rod is a conical surface with an open lower end, and the lower end of the movable sleeve is provided with an inner chamfered surface that can fit with the conical surface.

[0005] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, the upper part of the glue inlet through hole is cylindrical, and the lower part is trumpet-shaped and open to the outside.

[0006] 2. In the above solution, an inner flange portion is provided on the inner wall of the cylinder sleeve and is radially inwardly directed. An upper metal ring, a lower metal ring, and a plurality of first sealing rings and second sealing rings are provided above the inner flange portion and between the cylinder sleeve and the upper link shaft and staggeredly arranged between the upper metal ring and the lower metal ring in the vertical direction; The upper metal ring, the first sealing ring and the second sealing ring are each provided with a V-shaped groove extending in the circumferential direction on their lower surfaces, and the upper end surfaces of the first sealing ring, the second sealing ring and the lower metal ring are each V-shaped inclined surfaces that can cooperate with the V-shaped groove above them, and a clamping nut is threadedly connected to the inner wall of the upper end of the cylinder sleeve, and the lower end surface of the clamping nut is in compression contact with the upper surface of the upper metal ring and makes the lower surface of the lower metal ring in compression contact with the upper surface of the inner flange portion.

[0007] 3. In the above scheme, a gap layer is formed between the inner wall of the lower end of the clamping nut and the outer wall of the upper connecting shaft, and a spacing layer connected to the gap layer is formed between the inner wall of the upper end of the clamping nut and the outer wall of the upper connecting shaft, and the spacing layer is filled with grease.

[0008] 4. In the above solution, the barrel is arranged between two lifting cylinders.

[0009] 5. In the above scheme, the lower surface of the movable plate and the upper surface of the pressure plate are connected by two vertical connecting rods symmetrically arranged on both sides of the cylinder sleeve, so that the pressure plate can move in the vertical direction with the movable plate.

[0010] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The glue supply device for photovoltaic cell production of the present invention has a glue feeding sleeve sealed at the lower end of the cylinder sleeve, a glue feeding sleeve with a sealing plate at the upper end is sealed at the lower end of the glue feeding sleeve, the lower end of the glue suction cylinder is embedded in the glue feeding through hole on the pressure plate, the lower end of the upper connecting shaft is connected to the lower connecting shaft through a connecting rod, the lower end of the vertically extending lower connecting shaft passes through the glue feeding sleeve and is equipped with a glue scraper spoon, a movable part movable in the vertical direction is arranged in the glue feeding sleeve and below the sealing plate, the sealing sleeve is fitted on the lower part of the movable part on the lower connecting shaft and can be sealed with the upper end of the glue suction cylinder, so as to form a glue feeding chamber between the glue feeding sleeve, the glue suction cylinder and the movable part, a movable sleeve is fitted on the outer side of the connecting rod, a stopper is arranged above the movable sleeve movable in the vertical direction, the outer surface of the lower part of the movable sleeve is sealed with the inner wall of the cylinder sleeve The upper and lower connecting shafts are connected by a sealing connection, thereby forming a glue storage chamber between the lower part of the movable sleeve and the sealing plate of the glue passing sleeve, the lower part of the connecting rod has a radially outward protrusion, and the lower end of the movable sleeve can be sealed with the upper surface of the protrusion, thereby forming a glue discharge chamber between the movable sleeve and the connecting rod, the glue feed chamber and the glue storage chamber are connected through a plurality of glue passing through holes opened on the sealing plate, a glue discharge hole connected to the glue discharge chamber is opened on the side wall of the upper part of the movable sleeve, and a glue discharge flow channel is provided between the glue discharge hole and the glue outlet on the cylinder sleeve, and the reciprocating movement of the upper and lower connecting shafts drives the staggered connection between the glue feed chamber, the glue storage chamber and the glue discharge chamber, so that the glue is continuously supplied to the outside at a larger flow rate, so as to ensure the demand for glue consumption on the photovoltaic production line, and also to ensure the stability of the output glue pressure and flow rate, so as to ensure the quality of the final glue dispensing.

[0011] 2. The glue supply device for photovoltaic cell production of the present invention further has a glue scraping seal above the glue scraping spoon, the glue scraping seal includes a lower annular portion, an upper annular portion whose outer diameter is smaller than the inner diameter of the lower annular portion, and a connecting rib portion, the concentrically arranged lower annular portion and the upper annular portion are connected by two symmetrically arranged connecting rib portions, the upper annular portion is slidably mounted on the lower link shaft, and a stop protrusion extending outward is arranged on the lower link shaft and above the upper annular portion, when the glue scraping seal slides to the bottom along the lower link shaft, The inner wall of the lower end of the lower circular portion is in sealing contact with the outer wall of the upper end of the scraper spoon, and the inner wall of the upper end of the glue suction tube is an inner conical surface open downward. When the scraper seal moves to the top along with the lower connecting shaft, the outer wall of the upper end of the lower circular portion is in sealing contact with the lower part of the inner conical surface, which can provide uniform and stable pressure for the glue to push the movable part into the glue storage chamber when the scraper spoon moves upward, and can also compress the space in the glue suction tube when the scraper spoon moves downward, thereby maintaining the upward flow trend of the glue, thereby ensuring continuous and stable glue supply.

[0012] 3. The glue supply device for photovoltaic cell production of the present invention has an inner flange portion radially inwardly arranged on the inner wall of the cylinder sleeve and located above the glue outlet, and an upper metal ring, a lower metal ring and a plurality of first sealing rings and second sealing rings arranged alternately in the vertical direction between the upper metal ring and the lower metal ring are installed on the outer side of the upper link shaft and located above the inner flange portion, and the upper metal ring, the first sealing ring, and the second sealing ring are each provided with a V-shaped groove extending in the circumferential direction on the lower surface facing the inner cavity of the cylinder sleeve, and the upper end surfaces of the first sealing ring, the second sealing ring and the lower metal ring are each capable of being axially aligned with the upper surface of the upper metal ring, and the lower metal ring is provided with a V-shaped groove extending in the circumferential direction ... upper end surfaces of the first sealing ring, the second sealing ring The V-groove cooperates with the V-shaped inclined surface, and a clamping nut is threadedly connected to the inner wall of the upper end of the cylinder sleeve. The lower end face of the clamping nut is in compression contact with the upper surface of the upper metal ring and makes the lower surface of the lower metal ring in compression contact with the upper surface of the inner flange. On the basis of realizing the continuous output of the high-viscosity glue from the cylinder body through the glue outlet on the cylinder sleeve through the pressure plate, the stability of the seal at the upper end of the glue outlet can be always maintained during the long-term reciprocating movement of the upper connecting shaft, avoiding the situation where the high glue pressure in the inner cavity of the cylinder sleeve caused by the high viscosity of the glue liquid leads to unstable sealing performance and greatly shortened sealing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 This is a schematic diagram of the overall structure of the glue supply device for photovoltaic cell production of the present invention; Attached Figure 2 It is a partial structural schematic diagram of the glue supply device for photovoltaic cell production of the present invention; Attached Figure 3 For attachment Figure 2 Schematic diagram of the cross section along AA; Attached Figure 4 For attachment Figure 3 The enlarged schematic diagram of point B in the middle; Attached Figure 5 For attachment Figure 3 The enlarged schematic diagram of the center C; Attached Figure 6 For attachment Figure 3 The enlarged schematic diagram of point D in the middle; Attached Figure 7 It is a structural schematic diagram of a glue scraping seal of a glue supply device for photovoltaic cell production of the present invention; Attached Figure 8 It is a schematic diagram of the extended state of the piston rod of the glue supply device for photovoltaic cell production of the present invention; Attached Fig. 9 For attachment Figure 8 Schematic diagram of the cross section along EE; Attached Fig.10 For attachment Fig. 9 Enlarged schematic diagram of point F in the middle.

[0014] In the above drawings: 1, cylinder; 101, main body; 102, piston rod; 2, cylinder sleeve; 3, pressure plate; 301, glue inlet hole; 4, upper connecting shaft; 41, stopper; 51, round nut; 52, fixing plate; 53, positioning column; 54, support plate; 6, glue outlet; 7, inner flange; 81, upper metal ring; 82, lower metal ring; 83, first sealing ring; 84, second sealing ring; 85, V-shaped groove; 9, pressing nut; 91, gap layer; 92, spacing layer; 93, extension; 94, spanner groove; 10, retaining ring; 11, lower nut; 111, first flange; 12, connecting sleeve; 13, flange ring; 14. Sealing pad; 15. Glue scraping seal; 151. Lower annular portion; 152. Upper annular portion; 153. Connecting rib portion; 16. Stopping protrusion; 17. Glue passing sleeve; 171. Closing plate; 172. Glue passing through hole; 18. Glue suction cylinder; 181. Second flange portion; 19. Connecting rod; 191. Protruding portion; 20. Lower connecting shaft; 21. Glue scraping spoon; 22. Movable part; 23. Movable sleeve; 231. Glue outlet hole; 241. Glue inlet chamber; 242. Glue storage chamber; 243. Glue outlet chamber; 25. Glue outlet channel; 100. Barrel; 200. Carrier plate; 300. Lifting cylinder; 400. Movable plate; 500. Vertical connecting rod. DETAILED DESCRIPTION

[0015] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0016] Embodiment 1: A glue supply device for photovoltaic cell production, comprising: a carrier plate 200 for placing a barrel 100, at least two lifting cylinders 300 vertically mounted on the upper surface of the carrier plate 200, a movable plate 400 connected between the upper ends of the piston rods of the lifting cylinders 300, and a pressure plate 3 connected to the movable plate 400 through at least two vertical connecting rods 500, wherein a vertically arranged cylinder 1 is mounted on the lower surface of the movable plate 400, a cylinder sleeve 2 is connected to the main body 101 of the cylinder 1, and the pressure plate 3 is arranged just below the vertically extending cylinder sleeve 2, a vertically extending upper link shaft 4 is installed at the lower end of the piston rod 102 of the cylinder 1, the lower end of the upper link shaft 4 penetrates into the cylinder sleeve 2, a glue inlet through hole 301 communicating with the inner cavity of the cylinder sleeve 2 is provided in the center of the pressure plate 3 for sealing connection with the inner side wall of the barrel 100, a glue outlet 6 is provided on the side wall of the upper end of the cylinder sleeve 2, and a sealing ring 8 is provided above the glue outlet 6 and between the inner wall of the cylinder sleeve 2 and the outer wall of the upper link shaft 4; The lower end of the cylinder sleeve 2 is sealed and connected with a glue passing sleeve 17, and the lower end of the glue passing sleeve 17 with a sealing plate 171 at the upper end is sealed and connected with a glue suction cylinder 18, and the lower end of the glue suction cylinder 18 is embedded in the glue inlet through hole 301 on the pressure plate 3, and the lower end of the upper connecting shaft 4 is connected with a lower connecting shaft 20 through a connecting rod 19, and the lower end of the vertically extending lower connecting shaft 20 passes through the glue passing sleeve 17 and is equipped with a glue scraping spoon 21, and a glue scraping seal 15 is arranged above the glue scraping spoon 21, and the glue scraping seal 15 includes a lower circular portion 151, an upper circular portion 152 with an outer diameter smaller than the inner diameter of the lower circular portion 151, and a connecting rib portion 153, and the lower circular portion 151 is concentrically arranged. The ring portion 151 is connected to the upper annular portion 152 by two symmetrically arranged connecting rib portions 153. The upper annular portion 152 can be slidably mounted on the lower link shaft 20. A stop protrusion 16 extending outward is arranged on the lower link shaft 20 and above the upper annular portion 152. When the scraper seal 15 slides to the bottom along the lower link shaft 20, the lower inner wall of the lower annular portion 151 is in sealing contact with the upper outer wall of the scraper spoon 21. The inner wall of the upper end of the glue suction cylinder 18 is an inner conical surface open downward. When the scraper seal 15 slides to the top along the lower link shaft 20, the upper outer wall of the lower annular portion 151 is in sealing contact with the lower part of the inner conical surface. A movable part 22 movable in the vertical direction is arranged inside the glue sleeve 17 and below the sealing plate 171. The lower part of the movable part 22 is sealed on the lower connecting shaft 20 and can be sealed with the upper end of the glue sucking cylinder 18, so that a glue feeding chamber 241 is formed between the glue sleeve 17, the glue sucking cylinder 18 and the movable part 22. A movable sleeve 23 is sleeved on the outer side of the connecting rod 19. A stopper 41 is arranged above the movable sleeve 23 movable in the vertical direction. The outer surface of the lower part of the movable sleeve 23 is sealed with the inner wall of the cylinder sleeve 2, so that the lower part of the movable sleeve 23 is sealed with the glue sleeve 1 A glue storage chamber 242 is formed between the sealing plate 171 of the connecting rod 19, the lower part of the connecting rod 19 has a radially outward protrusion 191, the lower end of the movable sleeve 23 can be sealed with the upper surface of the protrusion 191, so as to form a glue discharge chamber 243 between the movable sleeve 23 and the connecting rod 19, the glue inlet chamber 241 and the glue storage chamber 242 are connected through a plurality of glue through holes 172 opened on the sealing plate 171, a glue discharge hole 231 connected to the glue discharge chamber 243 is opened on the side wall of the upper part of the movable sleeve 23, and a glue discharge flow channel 25 is provided between the glue discharge hole 231 and the glue outlet 6 on the cylinder sleeve 2; When the piston rod of the cylinder is in an extended state, the glue scraper spoon at the lower end of the lower connecting shaft is located below the glue liquid level in the glue inlet through hole. In the process of the glue scraper spoon moving upward with the lower connecting shaft, the glue liquid moving upward with the glue scraper spoon pushes the movable part to move upward, resulting in failure of the seal between the movable part and the glue suction cylinder. The glue enters the glue inlet chamber area from the gap between the movable part and the glue suction cylinder, and then enters the glue storage chamber through the glue through hole. In this process, the movable sleeve moves upward under the action of the protrusion on the connecting rod and maintains the seal with the protrusion, and the volume of the glue storage chamber gradually increases until the piston rod of the cylinder switches to a contracted state.

[0017] An inner flange portion 7 is provided on the inner wall of the cylinder sleeve 2 inwardly in the radial direction, and an upper metal ring 81, a lower metal ring 82 and a plurality of first sealing rings 83 and second sealing rings 84 are provided above the inner flange portion 7 and between the cylinder sleeve 2 and the upper link shaft 4 and staggeredly arranged between the upper metal ring 81 and the lower metal ring 82 in the vertical direction; The upper metal ring 81, the first sealing ring 83, and the second sealing ring 84 are each provided with a V-shaped groove 85 extending in the circumferential direction on their lower surfaces. The upper end surfaces of the first sealing ring 83, the second sealing ring 84, and the lower metal ring 82 are each V-shaped inclined surfaces that can cooperate with the V-shaped groove 85 above them. A clamping nut 9 is connected to the inner wall of the upper end of the cylinder sleeve 2 through a thread. The lower end surface of the clamping nut 9 is in compression contact with the upper surface of the upper metal ring 81 and makes the lower surface of the lower metal ring 82 in compression contact with the upper surface of the inner flange portion 7. First, the lower metal ring is mounted on the upper link shaft so that its lower surface overlaps with the upper end surface of the inner flange portion, and then multiple first sealing rings and second sealing rings are staggered and mounted on the upper link shaft in sequence so that the V-grooves thereon are opened downward to the area where glue pressure is generated, and finally the upper metal ring is mounted, and the V-grooves on each ring body stacked in sequence cooperate with the V-shaped protrusions on the adjacent ring body to improve the stability and integrity of the overall structure, and then the clamping nut is screwed into the cylinder sleeve so that its lower end face applies a downward extrusion force to the upper metal ring, and the first sealing ring and the second sealing ring with the V-groove are radially opened outward after being squeezed, and are in close contact with the upper link shaft to achieve sealing, and through the combination of the staggered first sealing ring, the second sealing ring and the upper metal ring and the lower metal ring, not only the stability of the overall structure can be improved, but also the sealing performance and wear resistance can be improved, it can withstand high glue pressure for a long time and maintain good sealing, thereby extending its service life.

[0018] The inner walls of the first sealing ring 83 and the second sealing ring 84 are interference fit with the outer wall of the upper link shaft 4 .

[0019] A gap layer 91 is formed between the inner wall of the lower end of the clamping nut 9 and the outer wall of the upper connecting shaft 4, and a spacer layer 92 connected to the gap layer 91 is formed between the inner wall of the upper end of the clamping nut 9 and the outer wall of the upper connecting shaft 4, and the spacer layer 92 is filled with grease.

[0020] The stopper 41 is disposed at the lower portion of the upper link shaft 4 .

[0021] A retaining ring 10 is arranged between the above-mentioned rubber sleeve 17 and the rubber suction tube 18. The upper surface of the retaining ring 10 is sealedly connected to the lower end surface of the rubber sleeve 17 via an O-ring, and the lower surface is sealedly connected to the upper end surface of the rubber suction tube 18 via an O-ring. The upper end of the retaining ring 10 is provided with an inner chamfer, and the inner chamfer surface is in sealing contact with the movable part 22.

[0022] A round nut 51 is sleeved on the outer side of the upper end of the above-mentioned cylinder sleeve 2, and a fixing plate 52 is sleeved below the round nut 51 threadedly connected to the cylinder sleeve 2 and located on the outer side of the cylinder sleeve 2. The lower surface of the round nut 51 overlaps the upper surface of the fixing plate 52, and the fixing plate 52 is connected to a support plate 54 installed on the lower surface of the main body 101 of the cylinder 1 through at least two vertically arranged positioning columns 53.

[0023] The glue outlet 6 is located below the fixing plate 52 .

[0024] The barrel 100 is disposed between two lifting cylinders 300 .

[0025] The lower surface of the movable plate 400 is connected to the upper surface of the pressure plate 3 via two vertical connecting rods 500 symmetrically arranged on both sides of the cylinder sleeve 2, so that the pressure plate 3 can move in the vertical direction with the movable plate 400.

[0026] The inner walls of the upper metal ring 81 and the lower metal ring 82 are clearance-fitted with the outer wall of the upper link shaft 4 .

[0027] The first sealing ring 83 is a UPE sealing ring, the second sealing ring 84 is a polytetrafluoroethylene sealing ring, and the upper metal ring 81 and the lower metal ring 82 are both stainless steel rings.

[0028] The clamping nut 9 has an extension portion 93 extending upward from the upper end surface of the cylinder sleeve 2, and the outer wall of the extension portion 93 is provided with a plurality of wrench grooves 94 arranged at intervals along the circumferential direction.

[0029] Embodiment 2: A large flow glue supply system, comprising: a carrier plate 200 for placing a barrel 100, at least two lifting cylinders 300 vertically mounted on the upper surface of the carrier plate 200, a movable plate 400 connected between the upper ends of the piston rods of the lifting cylinders 300, and a pressure plate 3 connected to the movable plate 400 through at least two vertical connecting rods 500, wherein a vertically arranged cylinder 1 is mounted on the lower surface of the movable plate 400, a cylinder sleeve 2 is connected to the main body 101 of the cylinder 1, and the pressure plate 3 is arranged on the lower surface of the movable plate 400. Directly below the vertically extending cylinder sleeve 2, a vertically extending upper link shaft 4 is installed at the lower end of the piston rod 102 of the cylinder 1, and the lower end of the upper link shaft 4 penetrates into the cylinder sleeve 2, and a glue inlet through hole 301 communicating with the inner cavity of the cylinder sleeve 2 is provided in the center of the pressure plate 3 for sealing connection with the inner side wall of the barrel 100, which is characterized in that: a glue outlet 6 is provided on the side wall of the upper end of the cylinder sleeve 2, and a sealing ring 8 is provided above the glue outlet 6 and between the inner wall of the cylinder sleeve 2 and the outer wall of the upper link shaft 4; When in use, the outer wall and the inner wall of the barrel are sealed and pushed to below the liquid level in the barrel, so that the glue inlet through hole on the pressure plate is filled with glue; The lower end of the cylinder sleeve 2 is sealed and connected with a glue passing sleeve 17, and the lower end of the glue passing sleeve 17 with a sealing plate 171 at the upper end is sealed and connected with a glue suction cylinder 18, and the lower end of the glue suction cylinder 18 is embedded in the glue inlet through hole 301 on the pressure plate 3, and the lower end of the upper connecting shaft 4 is connected with a lower connecting shaft 20 through a connecting rod 19, and the lower end of the vertically extending lower connecting shaft 20 passes through the glue passing sleeve 17 and is equipped with a glue scraping spoon 21, and a glue scraping seal 15 is arranged above the glue scraping spoon 21, and the glue scraping seal 15 includes a lower circular portion 151, an upper circular portion 152 with an outer diameter smaller than the inner diameter of the lower circular portion 151, and a connecting rib portion 153, and the lower circular portion 151 is concentrically arranged. The ring portion 151 is connected to the upper annular portion 152 by two symmetrically arranged connecting rib portions 153. The upper annular portion 152 can be slidably mounted on the lower connecting shaft 20. A stop protrusion 16 extending outward is arranged on the lower connecting shaft 20 and above the upper annular portion 152. When the scraper seal 15 slides to the bottom along the lower connecting shaft 20, the lower inner wall of the lower annular portion 151 is in sealing contact with the upper outer wall of the scraper spoon 21. The inner wall of the upper end of the glue suction cylinder 18 is an inner conical surface open downward. When the scraper seal 15 slides to the top along the lower connecting shaft 20, the upper outer wall of the lower annular portion 151 is in sealing contact with the lower part of the inner conical surface.

[0030] A movable part 22 movable in the vertical direction is arranged inside the glue sleeve 17 and below the sealing plate 171. The lower part of the movable part 22 is sealed on the lower connecting shaft 20 and can be sealed with the upper end of the glue sucking cylinder 18, so that a glue feeding chamber 241 is formed between the glue sleeve 17, the glue sucking cylinder 18 and the movable part 22. A movable sleeve 23 is sleeved on the outer side of the connecting rod 19. A stopper 41 is arranged above the movable sleeve 23 movable in the vertical direction. The outer surface of the lower part of the movable sleeve 23 is sealed with the inner wall of the cylinder sleeve 2, so that the lower part of the movable sleeve 23 is sealed with the glue sleeve 1 A glue storage chamber 242 is formed between the sealing plate 171 of the connecting rod 19, the lower part of the connecting rod 19 has a radially outward protrusion 191, the lower end of the movable sleeve 23 can be sealed with the upper surface of the protrusion 191, so as to form a glue discharge chamber 243 between the movable sleeve 23 and the connecting rod 19, the glue inlet chamber 241 and the glue storage chamber 242 are connected through a plurality of glue through holes 172 opened on the sealing plate 171, a glue discharge hole 231 connected to the glue discharge chamber 243 is opened on the side wall of the upper part of the movable sleeve 23, and a glue discharge flow channel 25 is provided between the glue discharge hole 231 and the glue outlet 6 on the cylinder sleeve 2; The piston rod of the cylinder drives the coaxially arranged upper link shaft, connecting rod and lower link shaft to reciprocate in the vertical direction at a high frequency; When the piston rod of the cylinder transforms from a contracted state to an extended state, the movable sleeve first moves downward with the upper connecting shaft and the connecting rod to reduce the volume of the glue storage chamber. The glue liquid in the glue storage chamber is squeezed and exerts an upward reaction force on the movable sleeve, causing the movable sleeve to move upward, resulting in failure of the seal between the movable sleeve and the protrusion on the connecting rod. The glue liquid enters the glue discharge chamber area from the gap between the movable sleeve and the protrusion, and then passes through the glue discharge hole and the glue discharge channel and is discharged out from the glue discharge port on the cylinder sleeve.

[0031] A retaining ring 10 is arranged between the above-mentioned rubber sleeve 17 and the rubber suction tube 18. The upper surface of the retaining ring 10 is sealedly connected to the lower end surface of the rubber sleeve 17 via an O-ring, and the lower surface is sealedly connected to the upper end surface of the rubber suction tube 18 via an O-ring. The upper end of the retaining ring 10 is provided with an inner chamfer, and the inner chamfer surface is in sealing contact with the movable part 22.

[0032] A round nut 51 is sleeved on the outer side of the upper end of the above-mentioned cylinder sleeve 2, and a fixing plate 52 is sleeved below the round nut 51 threadedly connected to the cylinder sleeve 2 and located on the outer side of the cylinder sleeve 2. The lower surface of the round nut 51 overlaps the upper surface of the fixing plate 52, and the fixing plate 52 is connected to a support plate 54 installed on the lower surface of the main body 101 of the cylinder 1 through at least two vertically arranged positioning columns 53.

[0033] The upper surface of the protruding portion 191 on the connecting rod 19 is a conical surface with an open lower end, and the lower end of the movable sleeve 23 is provided with an inner chamfered surface that can fit with the conical surface.

[0034] A lower nut 11 is threadedly connected to the outer wall of the lower end of the cylinder sleeve 2 . The lower nut 11 is sleeved on the outer side of the rubber sleeve 17 and is sealed with the outer wall of the rubber sleeve 17 .

[0035] The inner wall of the lower end of the above-mentioned lower nut 11 has a first flange portion 111 radially inward, and the outer wall of the upper end of the above-mentioned glue suction tube 18 has a second flange portion 181 radially outward, the lower surface of the second flange portion 181 overlaps and contacts with the upper surface of the first flange portion 111, and the outer surface of the second flange portion 181 is sealed and connected to the inner wall of the lower nut 11.

[0036] A connecting sleeve 12 is provided between the lower nut 11 and the pressure plate 3 and outside the rubber suction tube 18. The lower end of the connecting sleeve 12 is embedded in a flange ring 13 and is sealedly connected to the inner wall of the flange ring 13. The flange ring 13 is connected to the upper surface of the pressure plate 3 by bolts. The inner wall of the connecting sleeve 12 is sealedly connected to the outer wall of the rubber suction tube 18.

[0037] A sealing gasket 14 is arranged between the flange ring 13 and the upper surface of the pressure plate 3 .

[0038] The upper portion of the glue inlet through hole 301 is cylindrical, and the lower portion is trumpet-shaped and open outward.

[0039] The working principle of the present invention is as follows: During assembly, first, the lower metal ring is mounted on the upper link shaft so that its lower surface overlaps with the upper end surface of the inner flange portion, and then multiple first sealing rings and second sealing rings are alternately mounted on the upper link shaft in sequence so that the V-grooves thereon are opened downward to the area where glue pressure is generated, and finally the upper metal ring is mounted, and the V-grooves on each ring body stacked in sequence cooperate with the V-shaped protrusions on the adjacent ring bodies to improve the stability and integrity of the overall structure, and then the clamping nut is screwed into the cylinder sleeve so that its lower end surface applies a downward extrusion force to the upper metal ring, and the first sealing ring and the second sealing ring with the V-groove are radially opened outward after being squeezed, and are in close contact with the upper link shaft to achieve sealing, and through the combination of the alternately arranged first sealing ring, the second sealing ring and the upper metal ring and the lower metal ring, not only the stability of the overall structure can be improved, but also its sealing performance and wear resistance can be improved, it can withstand high glue pressure for a long time and maintain good sealing, thereby extending its service life.

[0040] When in use, the outer wall and the inner wall of the barrel are sealed and pushed to below the liquid level in the barrel, so that the glue inlet through hole on the pressure plate is filled with glue; The piston rod of the cylinder drives the coaxially arranged upper link shaft, connecting rod and lower link shaft to reciprocate in the vertical direction at a high frequency; When the piston rod of the cylinder is in an extended state, the glue scraper spoon at the lower end of the lower connecting shaft is located below the glue liquid level in the glue inlet through hole. In the process of the glue scraper spoon moving upward with the lower connecting shaft, the glue liquid moving upward with the glue scraper spoon pushes the movable part to move upward, resulting in failure of the seal between the movable part and the glue suction cylinder. The glue enters the glue inlet chamber area from the gap between the movable part and the glue suction cylinder and then enters the glue storage chamber through the glue through hole. In this process, the movable sleeve moves upward under the action of the raised part on the connecting rod and maintains the seal with the raised part, and the volume of the glue storage chamber gradually increases until the piston rod of the cylinder switches to a contracted state. When the piston rod of the cylinder transforms from a contracted state to an extended state, the movable sleeve first moves downward with the upper connecting shaft and the connecting rod to reduce the volume of the glue storage chamber. The glue liquid in the glue storage chamber is squeezed and exerts an upward reaction force on the movable sleeve, causing the movable sleeve to move upward, resulting in failure of the seal between the movable sleeve and the protrusion on the connecting rod. The glue liquid enters the glue discharge chamber area from the gap between the movable sleeve and the protrusion, and then passes through the glue discharge hole and the glue discharge channel and is discharged out from the glue discharge port on the cylinder sleeve.

[0041] The glue supply device for photovoltaic cell production is adopted, which drives the staggered communication between the glue inlet chamber, the glue storage chamber and the glue outlet chamber through the reciprocating movement of the upper and lower link shafts, so that the glue is continuously supplied outward at a large flow rate to ensure the demand for glue on the photovoltaic production line, and can also ensure the stability of the output glue pressure and flow rate, thereby ensuring the quality of the final glue dispensing; Furthermore, when the scraper spoon moves upward, it can provide uniform and stable pressure for the glue liquid to push the movable part into the glue storage chamber, and when the scraper spoon moves downward, it can compress the space in the glue suction cylinder to keep the glue liquid flowing upward, thereby ensuring continuous and stable glue supply; In addition, on the basis of realizing continuous output of high-viscosity glue from the cylinder body through the glue outlet on the cylinder liner by the pressure plate, the stability of the seal at the upper end of the glue outlet can be always maintained during the long-term reciprocating movement of the upper connecting shaft, thereby avoiding the high glue pressure in the inner cavity of the cylinder liner caused by the high viscosity of the glue liquid, resulting in unstable sealing performance and greatly shortened sealing service life.

[0042] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A glue supply device for photovoltaic cell production, comprising: A carrier plate (200) for placing a barrel (100), at least two lifting cylinders (300) vertically mounted on the upper surface of the carrier plate (200), a movable plate (400) connected between the upper ends of the piston rods of the lifting cylinders (300), and a pressure plate (3) connected to the movable plate (400) via at least two vertical connecting rods (500), wherein a vertically mounted cylinder (1) is mounted on the lower surface of the movable plate (400), a cylinder sleeve (2) is connected to the main body (101) of the cylinder (1), and the pressure plate (3) is arranged on the vertically extending cylinder sleeve (2) Directly below the cylinder (1), a vertically extending upper link shaft (4) is installed at the lower end of the piston rod (102) of the cylinder (1), and the lower end of the upper link shaft (4) penetrates into the cylinder sleeve (2). The center of the pressure plate (3) for sealing connection with the inner wall of the barrel (100) is provided with a glue inlet through hole (301) connected to the inner cavity of the cylinder sleeve (2), characterized in that: a glue outlet (6) is provided on the side wall of the upper end of the cylinder sleeve (2), and a sealing ring (8) is provided above the glue outlet (6) and between the inner wall of the cylinder sleeve (2) and the outer wall of the upper link shaft (4); The lower end of the cylinder sleeve (2) is sealedly connected to a glue passing sleeve (17), and the lower end of the glue passing sleeve (17) having a sealing plate (171) at the upper end is sealedly connected to a glue suction cylinder (18), and the lower end of the glue suction cylinder (18) is embedded in the glue inlet through hole (301) on the pressure plate (3). The lower end of the upper connecting shaft (4) is connected to a lower connecting shaft (20) via a connecting rod (19), and the lower end of the vertically extending lower connecting shaft (20) passes through the glue passing sleeve (17) and is equipped with a glue scraping spoon (21). A glue scraping seal (15) is arranged above the glue scraping spoon (21), and the glue scraping seal (15) comprises a lower annular portion (151), an upper annular portion (152) whose outer diameter is smaller than the inner diameter of the lower annular portion (151), and a connecting rib portion (153), which are concentrically arranged. The lower annular portion (151) and the upper annular portion (152) are connected via two symmetrically arranged connecting ribs (153); the upper annular portion (152) can be slidably mounted on the lower link shaft (20); a stop protrusion (16) extending outward is arranged on the lower link shaft (20) and above the upper annular portion (152); when the scraper seal (15) slides to the lowest position along the lower link shaft (20), the lower inner wall of the lower annular portion (151) is in sealing contact with the upper outer wall of the scraper spoon (21); the inner wall of the upper end of the glue suction cylinder (18) is an inner conical surface open downward; when the scraper seal (15) moves to the highest position along the lower link shaft (20), the upper outer wall of the lower annular portion (151) is in sealing contact with the lower part of the inner conical surface; A movable part (22) movable in the vertical direction is arranged inside the glue sleeve (17) and below the sealing plate (171). The lower part of the movable part (22) is sealingly sleeved on the lower connecting shaft (20) and can be sealedly connected to the upper end of the glue suction cylinder (18), thereby forming a glue feeding chamber (241) between the glue sleeve (17), the glue suction cylinder (18) and the movable part (22). A movable sleeve (23) is sleeved on the outer side of the connecting rod (19). A stopper (41) is arranged above the movable sleeve (23) movable in the vertical direction. The outer surface of the lower part of the movable sleeve (23) is sealingly connected to the inner wall of the cylinder sleeve (2), thereby forming a glue storage chamber (242) between the lower part of the movable sleeve (23) and the sealing plate (171) of the glue sleeve (17). The lower end of the connecting rod (19) The movable sleeve (23) has a protrusion (191) extending radially outward, and the lower end of the movable sleeve (23) can be sealed with the upper surface of the protrusion (191), so that a glue discharge chamber (243) is formed between the movable sleeve (23) and the connecting rod (19). The glue feeding chamber (241) and the glue storage chamber (242) are connected via a plurality of glue through holes (172) provided on the sealing plate (171). A glue discharge hole (231) connected to the glue discharge chamber (243) is provided on the side wall of the upper part of the movable sleeve (23), and a glue discharge channel (25) is provided between the glue discharge hole (231) and the glue outlet (6) on the cylinder sleeve (2). The upper surface of the protrusion (191) on the connecting rod (19) is a conical surface with an open lower end, and the lower end of the movable sleeve (23) is provided with an inner chamfered surface that can fit with the conical surface.

2. The adhesive supply device for photovoltaic cell production according to claim 1, characterized in that: The upper portion of the glue inlet through hole (301) is cylindrical, and the lower portion is trumpet-shaped and open outwards.

3. The glue supply device for photovoltaic cell production according to claim 1, characterized in that: An inner flange portion (7) is provided on the inner wall of the cylinder sleeve (2) and is radially inwardly directed. An upper metal ring (81), a lower metal ring (82), and a plurality of first sealing rings (83) and a second sealing ring (84) are provided above the inner flange portion (7) and between the cylinder sleeve (2) and the upper link shaft (4); The upper metal ring (81), the first sealing ring (83) and the second sealing ring (84) each have a V-shaped groove (85) extending in the circumferential direction on their respective lower surfaces; the upper end surfaces of the first sealing ring (83), the second sealing ring (84) and the lower metal ring (82) are each a V-shaped inclined surface that can cooperate with the V-shaped groove (85) above them; a clamping nut (9) is threadedly connected to the inner wall of the upper end of the cylinder sleeve (2); the lower end surface of the clamping nut (9) is in compression contact with the upper surface of the upper metal ring (81) and causes the lower surface of the lower metal ring (82) to be in compression contact with the upper surface of the inner flange portion (7).

4. The glue supply device for photovoltaic cell production according to claim 1, characterized in that: A gap layer (91) is formed between the inner wall of the lower end of the clamping nut (9) and the outer wall of the upper link shaft (4), and a spacing layer (92) connected to the gap layer (91) is formed between the inner wall of the upper end of the clamping nut (9) and the outer wall of the upper link shaft (4), and the spacing layer (92) is filled with grease.

5. The adhesive supply device for photovoltaic cell production according to claim 1, characterized in that: The barrel (100) is arranged between two lifting cylinders (300).

6. The glue supply device for photovoltaic cell production according to claim 1, characterized in that: The lower surface of the movable plate (400) and the upper surface of the pressure plate (3) are connected via two vertical connecting rods (500) symmetrically arranged on both sides of the cylinder sleeve (2), so that the pressure plate (3) can move in the vertical direction along with the movable plate (400).

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